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IDS Innomic Gesellschaft für Computer- und Messtechnik mbH Instruction Manual
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Page 1: VibroMatrix Manual

IDS Innomic Gesellschaft für Computer- und Messtechnik mbH

Instruction Manual

Page 2: VibroMatrix Manual

VibroMatrix Instruction Manual

Version: 1.6.0.71, 02/06/2009Authors: Dipl.Ing. Thomas Olschewski, Dr.rer.nat. Thomas Damker

IDS Innomic Gesellschaft für Computer- und Messtechnik mbHZum Buchhorst 2529410 SalzwedelGermany

© 2003 – 2009 All rights reserved. Reproduction (also in extracts) only with permission of IDS Innomic GmbH.VibroMatrix® InnoBeamer®

InnoMaster®

InnoStreamMachine®

InnoMeter®

InnoLogger®

InnoPlotter®

InnoAnalyzer®

InnoScope®

InnoBalancer® are registered trademarks of IDS Innomic GmbH

Windows®is registered trademark of Microsoft Corporation

Despite accurate work we cannot exclude errors in this manual. We hereby disclaim all warranties and conditions related to this informa-tion regarding fitness for a particular purpose and non-infringement. In no event shall IDS Innomic GmbH and/or its respective suppliers be liable for any special, indirect or consequential damages or any damages whatsoever resulting from loss of use, data or profits, whether in an action of contract, negligence or other tortuous action arising out of or in connection with the use of information available in this manual.

Page 3: VibroMatrix Manual

Contents

1.Introduction.......................................................................................................................61.1.Overview ....................................................................................................................................7

2.Quick Start.........................................................................................................................82.1.What you need.............................................................................................................................82.2.How to proceed...........................................................................................................................8

3.How to install VibroMatrix on your PC...........................................................................93.1.Driver installation........................................................................................................................93.2.VibroMatrix installation............................................................................................................11

4.Vibration sensors and measurement devices.............................................................144.1.Piezoelectric accelerometers.....................................................................................................14

Overview...............................................................................................................................14Sensor mounting ...................................................................................................................14

4.2.InnoBeamer® – Connecting sensor and PC..............................................................................15InnoBeamer L2......................................................................................................................16Measuring ranges with selected sensors...............................................................................16

5.The control center InnoMaster® RT..............................................................................175.1.Sensor Management..................................................................................................................18

Creating a new sensor group.................................................................................................18Changing the properties of a sensor group............................................................................18Deleting a sensor group.........................................................................................................19Creating a new sensor entry..................................................................................................19Changing sensor properties...................................................................................................19Deleting a sensor...................................................................................................................20Assigning a sensor to a measuring channel...........................................................................20Disconnecting a sensor from the measuring channel............................................................20

5.2.Measuring channel management...............................................................................................21Changing the properties of a measuring channel ................................................................21Deleting a disconnected InnoBeamer device........................................................................22Showing the properties of an InnoBeamer device................................................................22Showing the properties of an InnoBeamer device type.........................................................22

5.3.Instrument management............................................................................................................22Starting an instrument...........................................................................................................23Adding an instrument ...........................................................................................................23

5.4.Event messengers......................................................................................................................245.5.Central start/stop button............................................................................................................245.6.Extended InnoMaster settings...................................................................................................25

Display settings.....................................................................................................................25Signal processing settings.....................................................................................................26Workspace settings................................................................................................................27Measurement data recording settings....................................................................................29

6.VibroMatrix instruments.................................................................................................306.1.Overview...................................................................................................................................30

The instruments at a glance...................................................................................................306.2.Uniform control elements..........................................................................................................316.3.Controls of multichannel graphical instruments.......................................................................326.4.Report generation......................................................................................................................376.5.Configuring event messengers..................................................................................................39

Using a messenger.................................................................................................................40Releasing a messenger..........................................................................................................40

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Configuring event messengers..............................................................................................406.6.Uniform status indicators..........................................................................................................406.7.Calibrator – Sensor calibration for all VibroMatrix instruments..............................................43

Displays and controls............................................................................................................436.8.InnoMeter® – Universal vibration meter with digital display..................................................45

Overview...............................................................................................................................45Displays and controls............................................................................................................46

6.9.InnoPlotter® – Digital strip chart recorder for vibration parameters.......................................48Overview...............................................................................................................................48Displays and controls............................................................................................................49

6.10.InnoLogger® – Logging of vibration signals and vibration parameters.................................52Overview...............................................................................................................................52Displays and controls............................................................................................................53Data format............................................................................................................................57

6.11.InnoScope® – Displaying fast vibration and shock events....................................................60Overview...............................................................................................................................60Displays and controls............................................................................................................61

6.12.InnoAnalyzer® – Frequency and vibration analysis...............................................................68Overview...............................................................................................................................68Displays and controls............................................................................................................69

6.13.InnoAnalyzer® Speed – Measurements at run-up and coast-down........................................73Displays and controls............................................................................................................74

6.14.InnoBalancer® – Field balancing...........................................................................................78Overview...............................................................................................................................78 Displays and controls...........................................................................................................79

6.15.InnoMeter® HVM 2631:1997 – Human whole-body vibration measurement.......................90Overview...............................................................................................................................90Preparing the measurement...................................................................................................91Performing the measurement................................................................................................95Data storage...........................................................................................................................99Evaluation with exposure segments....................................................................................101Event messengers................................................................................................................104

6.16.InnoMeter® HVM 5349:2001 – Human hand-arm vibration measurement.........................105Overview.............................................................................................................................105Preparing the measurement.................................................................................................106Performing the measurement..............................................................................................108Data storage.........................................................................................................................110Evaluation............................................................................................................................112Event messengers................................................................................................................117

6.17.InnoMeter® HVM 6954:2001 – Vibration measurement on ships.......................................118Overview.............................................................................................................................118Preparing the measurement.................................................................................................119Performing the measurement..............................................................................................121Data storage.........................................................................................................................123Event messengers................................................................................................................125

6.18.InnoMeter® 4150-3:1999 – Vibration measurement of buildings........................................126Overview.............................................................................................................................126Preparing the measurement.................................................................................................127Performing the measurement..............................................................................................131Data storage.........................................................................................................................134Graphical display.................................................................................................................136Event messengers................................................................................................................137

7.Event messengers........................................................................................................1397.1.Messenger administration.......................................................................................................139

Activating the messenger administration when required....................................................139

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List of event messengers.....................................................................................................139Creating a messenger..........................................................................................................140Deleting a messenger..........................................................................................................140Display modes of event messengers....................................................................................140

7.2.Messenger type e-mail ...........................................................................................................140Configuration......................................................................................................................141

7.3.Messenger type extra display..................................................................................................144Configuration......................................................................................................................144

7.4.Messenger type radio switch...................................................................................................145Overview.............................................................................................................................145Set up...................................................................................................................................145Driver installation................................................................................................................146Checking the connection with the radio control center.......................................................146Configuration of the event messenger.................................................................................147

8.InnoMaster® Replay – Off-line analysis.....................................................................148Basic process.......................................................................................................................148

8.1.Loading a data file...................................................................................................................1498.2.Playing back a data file...........................................................................................................149

More tips for replaying........................................................................................................1518.3.Control panel Navigator..........................................................................................................151

The Navigator display.........................................................................................................151Axes menu...........................................................................................................................153Notes menu..........................................................................................................................153Masks menu.........................................................................................................................154Export menu........................................................................................................................155

8.4.Control panel Notes and Masks..............................................................................................1568.5.Differences to InnoMaster RT................................................................................................157

Sensor management.............................................................................................................157Channel management..........................................................................................................157Instrument management......................................................................................................158Using the software instruments...........................................................................................158

9.Facts about VibroMatrix worth knowing....................................................................1599.1.Technologies...........................................................................................................................159

InnoStreamMachine® – Digital data streams as kernel of VibroMatrix............................159Synchronization of measuring channels..............................................................................159

9.2.Licensing software in VibroMatrix.........................................................................................160Channel concept and clone function...................................................................................161

Page 6: VibroMatrix Manual

1.Introduction

1. IntroductionThank you for choosing VibroMatrix. You have purchased an efficient, expandable and economical solution for vibration measurement. Whether in laboratory, permanent in-dustrial installations or field, VibroMatrix can be used for each of these applications.

VibroMatrix provides a variety of vibration instruments based on your PC and broadens the potential of conventional instrumentation.

You can operate several instruments with one common vibration sensor – without any disadvantages like by electrical connection of measuring instruments.

Duplicate your instruments during the measurement – one becomes two, three, ...

Enlarge the number of measurement channels by additional DAQ boxes. When con-figured conveniently, measured data is read in as synchronously as it would be if only one data acquisition device was used.

Save the screen arrangement of instruments with individual settings in workspaces. You never built up and configured your conventional instrumentation as fast as a workspace is restored.

In case of unattended measurements, VibroMatrix now informs you when interesting events occurred, for instance by e-mail.

Play measurements again with recorded data and analyze the measured data more in-tensely than during live measurement. Simply put comments to the data stream during live measurement. They are indicated again when replaying and help you to relate the measurement data.

This instruction manual shows you how to efficiently apply VibroMatrix in order to solve your measuring tasks. If you do not have enough time to read the entire document please proceed to the chapter 2 on page 8.

If you have more time to become familiar with VibroMatrix, this manual will inform you detailed about both the complete system and the system’s components, like control center and instruments.

Hint: If you read this manual electronically, you can click on the page reference, like this one for instance – page 8 – to go directly to this page.

The current version of the manual can always be downloaded under www.innomic.com.

We are at your disposal for increments, complaints and wishes. We are sure you will use VibroMatrix successfully.

Germany, Salzwedel, February 6, 2009 VibroMatrix Development Team

Introduction6

Page 7: VibroMatrix Manual

1.Introduction

1.1. Overview VibroMatrix is a PC based vibration measurement system consisting of harmonized hardware and software modules. This measurement system is a complementary solution for your notebook or PC and is therefore very cost-efficient. Until now, your PC has been your typewriter, calendar or drawing board. With VibroMatrix, it becomes a high-quality vibration measurement system. You continue using your familiar environment.

1. Piezoelectric sensors with integrated amplifier are directly connected to the PC via the InnoBeamer USB adapter. Piezoelectric sensors with charge output are previous-ly connected with a charge converter from the ICP1x0-series and thereafter are able to transmit their signals to the PC as well.

2. One or more InnoBeamers are connected to the USB interface of the PC. The PC supplies the InnoBeamer with energy. No external power supply is required.

3. The software instruments have been tailored for various measuring applications. Still, all instruments can work on the PC-screen at the same time. You can combine them at will. The operation is performed by mouse. The results are displayed in real-time, high resolution and color.

4. If required, messages can be sent automated, for instance by e-mail to another PC.

The operation of VibroMatrix is simple, because the system is based on the natural sig-nal flow: sensors measuring channels instruments messengers.

Quick starters go on to the next page. For those with more time: Proceed like that:

Installation – Your PC/notebook becomes a measuring machine........................p.9Sensors and devices provide the measurement signals .......................................p.14Control center InnoMaster – Comfortable overview ..........................................p.17Instruments – Vibrations are visible now ............................................................p.30VibroMatrix non-stop operation – Automated event messages ..........................p.139Replay – Off-line analysis of measured data.......................................................p.148

Overview 7

Page 8: VibroMatrix Manual

2.Quick Start

2. Quick StartVibroMatrix has reduced considerably the setup time since version 1.5. Before the sys-tem is delivered a complete configuration with your purchased sensors and instruments is prepared. During installation this individually created configuration is transferred to your computer an you are immediately ready for measurement.

2.1. What you need PC or notebook with USB interface, CD-ROM drive, operating system Windows 98,

Windows ME, Windows 2000, Windows XP, Windows Vista VibroMatrix CD-ROM Piezoelectric sensor with integrated amplifier Sensor cable with BNC plug on the InnoBeamer side InnoBeamer device USB cable

2.2. How to proceed Switch on your PC. Insert the VibroMatrix CD-ROM. Connect InnoBeamer to your PC via USB cable. When Windows asks for driver installation, direct the assistant to your CD-ROM and

install the driver (page 9). If you have more than one InnoBeamer, repeat the last step for the other InnoBeamers

until all of them are connected to your PC. Start VibroMatrix_Setup.exe in the root directory of the CD-ROM and install the

software (page 11). This will transfer the prepared configuration too. When you finish the installation,

VibroMatrix will start with one of the pre-configured work spaces. Connect the sensor to the InnoBeamer, switch on the instrument, the measurement is

running.

How to proceed8

Page 9: VibroMatrix Manual

3.How to install VibroMatrix on your PC

3. How to install VibroMatrix on your PCThe installation of the VibroMatrix software is executed in two steps. The driver for the InnoBeamer must be installed first. Then the VibroMatrix software itself is installed.

3.1. Driver installationA driver is a small piece of software controlling the InnoBeamer hardware under Win-dows. The InnoBeamer driver is a so-called WDM driver supporting Windows 98 (first and second edition), Windows ME, Windows 2000, Windows XP and Windows Vista. For installation from Windows 2000 Professional on make sure that you have permis-sion to install drivers.

When you connect the InnoBeamer to your PC for the first time, the operating system recognizes the hardware and asks you for an appropriate device driver. The drivers are located in the root directory of your VibroMatrix CD-ROM.

The dialog boxes after the fist connection with the InnoBeamer vary, depending on the Windows version you are using. The following dialog, for example, applies for Win-dows XP.

The hardware wizard opens, an-nouncing the installation of the driver.

Insert your VibroMatrix-CD now.

Select Install the software auto-matically and click on Next >.

Windows automatically searches the CD-Rom drive, finds the driver and installs it.

Driver installation9

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3.How to install VibroMatrix on your PC

A final message about the success-ful installation appears in the end.

Click on Finish.

It is a characteristic of some Windows versions to ask for the driver again when you connect the InnoBeamer with an USB interface it has not been connected to previously.

That is why we recommend to successively connect the InnoBeamer to all USB interfaces of the PC/notebook and – if Windows asks for it – install the driver for each of them. This way, you avoid later Windows callbacks when you actu-ally just want to work with VibroMatrix.

Driver installation10

Page 11: VibroMatrix Manual

3.How to install VibroMatrix on your PC

3.2. VibroMatrix installationBefore installation, please uninstall old versions of VibroMatrix first.

The installation program VibroMatrix_Setup.exe is located in the root directory of your VibroMatrix CD-ROM.

The installation program con-tains all language versions of VibroMatrix. Please choose the desired language first.

Then, a dialog welcomes you to the installation.

Click on Next >.

Afterwards our license agree-ment informs you about the terms of use for the VibroMa-trix software.

If you agree, choose the up-per option to accept the li-cense agreement and click on Next >.

VibroMatrix installation11

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3.How to install VibroMatrix on your PC

Now you define which direc-tory the software will be in-stalled in. A default directory has already been preset.

Click on Next >.

Even if the directory is al-ready present due to a former installation, you can install VibroMatrix there.

Click on Yes.

A summary for the upcoming installation is displayed now.

Click on Install.

Now the installation is carried out according to your instruc-tions.

A final dialog appears in the end.

If required, you can start the training program for Vibro-Matrix now. For this pro-gram, you do not need any measurement hardware.

A separate training manual with many practical exercises inducts you into vibration measurement.

Click on Finish.

VibroMatrix installation12

Page 13: VibroMatrix Manual

3.How to install VibroMatrix on your PC

After installation VibroMatrix can be found in the start menu of Windows.

InnoMaster RT The control center for real-time measurements, also allowing to optionally save the signals in Innomic Data Stream format.

InnoMaster Replay The control center for the replay of data saved in Innomic Data Stream format.

InnoMaster RT Trainer All instruments can be used without measurement hardware, thus allowing to become acquainted with their functionality. A short training program gives an introduction to vibration measurement.

Uninstall VibroMatrix Uninstalls the program. Measured data will not be deleted.

VibroMatrix installation13

Page 14: VibroMatrix Manual

4.Vibration sensors and measurement devices

4. Vibration sensors and measurement devices

4.1. Piezoelectric accelerometers

OverviewPiezoelectric accelerometers with integrated amplifier are most suitable for vibration measurement. They are available from several producers for different applications. The following sensors are an example for our offer:

General purpose accelerometers High sensitivity accelerometers, for instance for building vibration measurement Miniature accelerometers, for instance for small objects Triaxial accelerometers, for measurement in three axes Industrial accelerometers Special sensors, for instance seat accelerometer for human vibration measurement

Accelerometers with charge output can be refitted with an external remote charge con-verter.

Sensor mounting Before making measurements, suitable measuring points need to be found. On rotating machines, vibration forces are normally transmitted into the machine frame via bearings and their housings. Therefore, bearing housings or points close to bearings are recom-mended as measuring points. Less suitable are light or mechanically flexible machine parts.

An even, smooth surface at the mounting point is indispensable for precise vibration transmission from the machine to the accelerometer. Measuring points that are uneven, scratched or insuf-ficiently sized may cause considerable errors, particularly at frequencies above 1 kHz. For best transmitting conditions, we rec-ommend a stainless steel disk with vertical mounting thread which can be glued or welded onto the machine. The diameter should be at least as big as the diameter of the accelerometer.

The transducer is usually mounted by stud bolts. A thin layer of grease (e.g. silicon grease) will improve the quality of the couple connection. For measurements up to 1 kHz, mounting via clamping magnet is suitable as well.

Piezoelectric accelerometers14

Rough surface

Uneven surface

Flexible part

Coupling problems Sensor coupling with best transmission properties

Stainless steel disk

Stud bolt

Smooth surface

Epoxy glued or welded

Thin layer of grease improves high frequency transmission

F

Page 15: VibroMatrix Manual

4.Vibration sensors and measurement devices

4.2. InnoBeamer® – Connecting sensor and PCThere is no direct connection for piezoelectric sensors on the PC. That’s why the USB adapter InnoBeamer is interposed. It digitizes the transducer signals and provides USB compatible data for the software instruments on the PC. On the input, sensors are con-nected directly and supplied. On the output, the transfer of the digitized data via USB interface is carried out.

A safe link mode is used, which transfers all data without dropouts. Scanner, printer or other instruments can be used in parallel on the USB input of the PC.

InnoBeamers receive their power supply from the USB interface of the PC. No external power supply is necessary. The complete measuring chain is supplied by PC, which al-lows an easy use of VibroMatrix on notebooks far away from any power outlet.

Model InnoBeamer L2Analog inputStandard configuration AC input with supply for piezoelectric sensors with integrat-

ed amplifier (IEPE)Number 2Input resistance MΩ > 1A/D converter Bit 16Measuring ranges mV -10000 .. +10000 / -1000 .. +1000 / -100..+100 / -10 .. +10Resolution µV 10Measuring error % 0 .. < 2Sample rate per channel kHz 10Signal frequency (-3dB) Hz 0.3 .. 2000Supply for sensor mA 3.5 .. 5.6Compliance voltage V 24Grounding Mass of the signal input is connected to housingConnector BNCDigital inputStandard configuration DC input + supply for external photoelectric reflex switches Number 1Supply voltage V +15Supply current mA 30Low level V < 1High level V > 5Maximum input voltage V +15Connector Binder 719InnoBeamer characteristicsSupply voltage V 5 V (by USB cable)Supply current mA < 400 (including supply of all 3 sensors)Operating temperature °C -20 .. +55Relative humidity % < 95, without condensationDimensions W x H x D mm 55 x 24 x 84Mass gr. 130

InnoBeamer® – Connecting sensor and PC15

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4.Vibration sensors and measurement devices

InnoBeamer L2

Measuring ranges with selected sensorsDAQ products are often advertised by unpractical electrical properties. What counts, are maximum values and resolution of vibration quantities. The following table shows which values a VibroMatrix system provides with different sensors:

InnoBeamer® – Connecting sensor and PC16

Sensor: KS74B

Frequency range [Hz] Acceleration [m/s²] Velocity [mm/s]min max min max min max min max

0,3 2000 0,008 1200 0,3 - 100 -1 1,1 0,0005 1200 0,04 191000 6 30.000.000

10 11 0,0008 1200 0,006 19100 0,1 300.000 100 110 0,0006 1200 0,0005 1910 0,0008 3.000

1000 1100 0,0016 1200 0,0001 191 0,00002 30

Sensor: KS80C

Frequency range [Hz] Acceleration [m/s²] Velocity [mm/s]min max min max min max min max

0,3 2000 0,004 600 0,2 - 50 -1 1,1 0,0003 600 0,02 95000 3 15.000.000

10 11 0,0004 600 0,003 9500 0,1 150.000 100 110 0,0003 600 0,0003 950 0,0004 1.500

1000 1100 0,0008 600 0,0001 95 0,00001 15

Sensor: KS48B

Frequency range [Hz] Acceleration [m/s²] Velocity [mm/s]min max min max min max min max

0,3 2000 0,0004 60 0,08 - 30 -1 1,1 0,00003 60 0,002 10000 0,3 1.600.000

10 11 0,00004 60 0,0003 1000 0,01 16.000 100 110 0,00003 60 0,00003 100 0,00004 160

1000 1100 0,00008 60 0,00001 10 0,000001 1,6

Sensor: KB12VB

Frequency range [Hz] Acceleration [m/s²] Velocity [mm/s]min max min max min max min max

0,3 260 0,00002 6 0,002 - 0,6 -1 1,1 0,000003 6 0,0002 1000 0,03 160.000

10 11 0,000004 6 0,00003 100 0,001 1.600 100 110 0,000003 6 0,000003 10 0,000004 16

Displacement [µm]

Displacement [µm]

Displacement [µm]

Displacement [µm]

Connector for digital input

Connector and indicator for USB connector

Connector and indicator for piezoelectric sensor 2

Connector and indicator for piezoelectric sensor 1

Page 17: VibroMatrix Manual

5.The control center InnoMaster® RT

5. The control center InnoMaster® RTVibroMatrix is a modular system. Sensors, measuring channels, software instruments and – if required – event messengers are combined to solve the vibration measurement tasks. The InnoMaster RT organizes the communication between these modules.

After having started VibroMatrix, this control center appears at the lower edge of your screen. By means of 4 buttons, all elements of the measuring chain are available.

By clicking on Settings >>, further global functions are available.

In both modes the CPU load of the PC is displayed. It shows how much CPU capacity is occupied by the digital signal processing of VibroMatrix. If the CPU load exceeds 100%, the instruments cannot work with the required speed. In this case, instruments should be closed or their refresh rate reduced (page 25). However, the optimized pro-gram code of VibroMatrix - the InnoStreamMachine - will run properly even with older PCs. Thus, vibration measurement with VibroMatrix works on PCs from 500 MHz on.

The following section explains the settings of the measuring chain followed by a de-scription of the extended functions of InnoMaster (page 25).

The control center InnoMaster® RT17

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5.The control center InnoMaster® RT

5.1. Sensor ManagementA measuring chain starts with the sensors. The InnoMaster allows to acquire and archive the data of your sensors. As soon as a sensor is assigned to a measuring channel, it will make its measured data to all instruments connected to this channel. The data is: sensor name, serial number and calibration to mV.

A click on the Sensor button in the InnoMaster opens the sensor control window. A clear arrangement of the sensors data can be obtained by sensor groups.

On the left side of the sensor name, there is an activity indicator. It can show 3 states:

Red The sensor is not in use.

Yellow: The sensor is assigned to a measuring channel but this channel is not active.

Green: The sensor is assigned to a measuring channel and it is involved in a measure-ment.

By means of the 3 buttons in the bottom line, the dis-played sensors can be filtered. For instance, only ac-tive sensors can be displayed.

By a right click in the environment of the sensor list, a context-sensitive menu opens. Its functions are ex-plained in the following section.

Creating a new sensor group Click right in an empty space of the sensor list. A

new menu named New group will open.

Click left on this entry. A new sensor group with a default name is generated. You can change this name as described in the next section.

Up to 100 sensor groups can be created.

Changing the properties of a sensor group A property window appears automatically after a sensor group has been created. Oth-

erwise, double-click left on a sensor group to open the property window.

Enter a name for the sensor group and, if desired, a description text.

If an already existing name is entered, a message will appear asking for a different name.

Sensor Management18

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5.The control center InnoMaster® RT

Deleting a sensor group Click right on a sensor group. A context menu

opens.

Select Delete group and click left on it.

A confirmation message appears. The deletion can be confirmed or canceled.

Creating a new sensor entry Click right on a sensor group. A context menu

opens.

Choose New sensor and click left on it.

A new sensor with a default name in the previously chosen group is generated. You can change this name in Properties.

Up to 100 sensors per group can be created.

Changing sensor properties A property window appears immediately after a sensor

has been created. Otherwise, double-click left on a sen-sor to open the property window.

Standard sensors are piezoelectric accelerometers. For these sensors all measuring units, measurands, etc. are preset.

Type: Select one type from the list or type it in.

Serial number: In order to distinguish the sensors, en-ter the serial number here.

Sensitivity: The sensitivity from the data sheet of the sensor can be added here. Another method is to cali-brate the sensor with the VibroMatrix instrument Cali-brator (page 43). The calibration date (field Last cali-bration) is also updated, when the sensitivity value is confirmed (i.e. when the enter button is pressed within the field Sensitivity). A regular calibration is recommended, though (12 months for intensively used equipment, 24 months otherwise).

Calibration interval: Define the calibration interval for the sensor here. InnoMaster compares the date of the last calibration with the present one and signals the calibra-tion state automatically.

- OK (green): Less than 90% of the calibration interval are expired.- Calibrate soon (yellow): More than 90% of the calibration interval are expired.- Calibrate !!! (red): The calibration interval is expired.

Calibrate now: This button starts the VibroMatrix instrument Calibrator. Therefore the sensor must be connected to a measuring channel (page 20).

Sensor Management19

Page 20: VibroMatrix Manual

5.The control center InnoMaster® RT

Deleting a sensor Click right on a sensor. A context menu opens.

Select Delete sensor and click left on it.

A confirmation message appears. The deletion can be confirmed or canceled.

Assigning a sensor to a measuring channelSpecify now which sensor from the sensor list is actually connected to an InnoBeamer measuring channel. This is done with simple “drag and drop“ by your mouse.

Open the windows Sensors and Mea-suring channels by clicking on the re-spective buttons in the InnoMaster.

Click left on a sensor and keep the but-ton pressed.

Drag the sensor to a measuring channel that is marked yellow or green, i.e. it must be physically connected to an In-noBeamer.

Release the left mouse button.

The sensor is connected to the measuring channel now. Thus the sensor parameters (e.g. calibrated sensitivity) are accessible for this channel. The sensor will automati-cally appear in all instruments working with this channel and these instruments will consider the new sensitivity instantaneous-ly.

Disconnecting a sensor from the measuring channel Open the window for the measuring channel

management by clicking on the button Measuring Channels in the InnoMaster.

Click right on a measuring channel to which a sensor was assigned previously. A context menu opens.

Select the entry Disconnect sensor.

Sensor Management20

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5.The control center InnoMaster® RT

5.2. Measuring channel managementIn the measuring chain, sensors (page 18) are fol-lowed by measuring channels.

To view the channel settings, open the Measuring channels window by clicking the respective Inno-Master button: Here you find all available InnoBeam-er devices with their associated measuring channels. If an InnoBeamer is connected to or disconnected from the USB interface, the list will be updated automati-cally. The state of each measuring channel is shown by an indicator on the left. 3 states are possible:

Red: The measuring channel belongs to an In-noBeamer device which is currently not connected to the PC (off-line).

Yellow: The measuring channel belongs to an InnoBeamer device which is con-nected to the PC but currently not measuring (on-line/inactive).

Green: The measuring channel is measuring (on-line/active).

On the bottom of the Measuring channels window you will find three switches which can be used for filtering the listed channels. For example, only active channels can be listed.

Other setup features are accessible by right mouse click.

Changing the properties of a measuring channel Double-click left on a measuring channel. A property window opens.

This window shows which InnoBeamer the channel is Provided by and which electrical Coupling the input signal is processed with.

You can type in an individual Name for each measuring channel. It will be shown in the measuring channel list as well as in the in-struments.

The date of the Last calibration is also dis-played in the properties window. For recali-bration please contact your dealer.

In the Supported instruments list you will find all instruments which are registered for this channel. To register one further instru-ment click on the button Add instrument or lease time for instrument. Further details about Adding an instrument can be found on page 23.

Measuring channel management21

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5.The control center InnoMaster® RT

Deleting a disconnected InnoBeamer deviceWhen a new InnoBeamer is connected to the PC, VibroMatrix automatically generates a new branch in the measuring channels tree. When the InnoBeamer is removed from the USB interface, it will remain in the list marked as an off-line device. So you have an overview about all your InnoBeamer devices, even if not all devices are connected. In-noBeamers you not longer use can be removed as fol-lows:

Click right on the off-line InnoBeamer (with red mark) you want to remove from the list. A context menu opens.

Select Delete and click left on it. The InnoBeamer and its measuring channels will disappear.

Showing the properties of an InnoBeamer deviceIn some situations it may be useful to look at the properties of your InnoBeamer, for instance to check its firmware version.

Double-click left on the serial number of an In-noBeamer. A property window opens.

Showing the properties of an InnoBeamer device typeGeneral properties of InnoBeamer device types can also be viewed.

Double-click left on an InnoBeamer device type. A property window opens.

5.3. Instrument managementThe vibrations have now been picked up by the sensors and dig-itized by the InnoBeamer electronics. Afterwards, the instru-ments follow in the measuring chain. They provide you with real-time value displays, graphic displays and further informa-tion. More details about the instruments can be found on page 30. Chapter 9.2 on page 160 provides you with further informa-tion concerning licensing.

A left click on the Instruments button in InnoMaster opens the instruments window. Instruments are started from here.

Additionally, the list indicates which instruments are installed on the PC, which of them are ready for a measurement and which of them already are in measuring operation.

The status of each instrument is shown by an indicator on the left:

Red: The instrument software has been installed on your PC but there is no In-noBeamer available on whose measuring channel this instrument is regis-tered (off-line).

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Yellow: The instrument is registered for a measuring channel of a connected In-noBeamer device but is not in use (on-line, inactive).

Green: The instrument is switched on and in measuring operation (on-line, active).

The entries following the instrument’s name indicate the version and the number of opened instrument windows (also see page 161).

On the bottom of the instruments window you find three switches which can be used for filtering the listed instruments. For example, only active instruments can be shown.

Starting an instrumentInstruments can only be started if they are registered for the measuring channel of a connected InnoBeamer device, i.e. their indicator must be yellow or green.

Starting an instrument on the first available measuring channel

Double-click left on an instrument with yellow or green indicator.

You can still change the measuring channel in an instrument later.

Starting an instrument on a particular measuring channel

In some situations, it might be useful to start an instrument on a particular measuring channel. For instance if you registered an instrument on one measuring channel perma-nently and leased an instrument of the same type for another channel. Every time you start a leased instrument, the first time unit is subtracted from the remaining leasing time. So if you do not want to use the leased instrument at the moment, it is advisable to start the instrument on the measuring channel where it is registered permanently.

Move the mouse pointer to an instru-ment with a yellow or green indicator.

Click right on that instrument. A con-text menu opens.

Select New at channel. A second context menu opens, showing the available mea-suring channels and the remaining leasing time.

Select the desired measuring channel.

Adding an instrument Information concerning licensing of instruments can be found in chapter 9.2 on page 160.

If you purchase codes for further software instruments, they are activated in the In-noBeamer device as follows:

Connect the InnoBeamer to your PC.

Move the mouse pointer in an empty pace of the in-strument list.

Click right, a context menu opens.

Select Add.

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A file menu for the installation of the software key appears.

Navigate to the key file which you have received from your dealer.

Click on Open. All instruments cod-ed in this file will be activated now.

An error message will appear if the InnoBeamer device for whose measuring channels the instruments are to be regis-tered is not connected.

If the registration was successful, a report win-dow will appear showing the new registered in-struments.

An upload for a limited time period is possible under certain conditions only:

An instrument can be recharged for maximum of 250 times. These registrations are numbered and must be carried out in the right order.

If your registration was not accepted you will be informed by an error message in the report win-dow so that you can solve the problem.

The following errors may occur:

Lease time is still available: The instrument is not expired yet. If leasing time is not used up, uploading will not overwrite it. So do not attempt recharging an instrument before its usage period is over.

Upload number skipped: If you skip upload numbers, uploads with lower numbers will not be accepted anymore. The numbers must be used in the correct order

Upload number already used: A multiple use of one upload number for the same in-strument on the same measuring channel is not allowed.

5.4. Event messengersEvent messengers enable the instruments to transmit messages about changes of mea-sured values or other events. This process is not essential for the measurement and is described in chapter 7 from page 139 on.

5.5. Central start/stop buttonEach instrument has its own start/stop button (p.31). A cen-tral start/stop button is useful, when several instruments are active at the same time. For this purpose, the InnoMaster RT possesses the button Start all instruments. A push on this button switches on all active instruments at the same

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time. Thereafter, the button changes its label to Stop all instruments. All instruments can now be stopped by a single push of this button.

However, the common start is only possible when all instruments are stopped. Other-wise, the button function changes to Stop all instruments, without starting further in-struments.

5.6. Extended InnoMaster settingsClick on the button Settings to activate the central InnoMas-ter settings. By clicking on the respective tab, you can adjust the extended settings for

Displaying page 25 Signal Processing page 26 Workspace page 27 Measurement data page 29

Display settings

Display refresh rateVibroMatrix allows to choose among three dis-play refresh rates. Gener-ally the refresh rate should be set as high as possible, particularly for graphic outputs. Older PCs however may require a lower re-fresh rate to avoid CPU overload.

The refresh rate is stated in frames per second (fps).

There are different refresh rates for parameters and raw data. Parameters can be dis-played up to 4 times per second. They are based on a lot of raw data. Thus a fast refresh does not increase their significance that much. Raw data in contrast can be displayed up to 16 times per second to ensure a high quality especially in terms of graphics. But it can be limited to 1 fps because of the above mentioned restrictions of older PCs.

The refresh rate can be changed during measurement.

Instruments as well as the measured data within the instruments are reset when changing the refresh rate.

Instrument viewsThis function may be useful if the number of instru-ments in use is too large for your screen. You can save several arrangements of instruments as Views. Thus, different views on the measuring task can be obtained. In a view, the positions of all instruments and their window state (minimized or maximized) are saved. The instruments not shown (mini-mized) keep on working in the background.

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How to save views

Minimize all instruments that are not necessary for the desired view.

Arrange the other instruments for a convenient display.

Type in a name for the view to be saved in the View list.

Click on Save.

Repeat the steps for other arrangements of instruments.

Minimized instruments keep on working in the background without interruption.

Selecting views

Select a view from the View list. The saved arrangement of instruments is opened.

If you start new instruments after saving a view, they are not saved in this view and do not change their position when loading up views.

Windows allows transition effects for minimizing/maximizing windows. They are disturbing for the fast changing of views because they delay the change. When these transition effects are disabled, quick minimizing/maximizing is possible.

Activating the messenger management

The messenger management can selectively be acti-vated or not. It is explained more detailed in the event messenger chapter on page 139.

InnoMaster displaying

If you want to see the InnoMaster window together with the sensors, measuring channels and instru-ments in the foreground permanently, select the checkbox InnoMaster always on top.

Signal processing settingsThe signal processing settings control filter slope and dB-reference.

Filter slope

An enhanced filter slope provides a sharper cutting of disturbing frequency ranges. But the enhancement causes longer times for the transient effect as well. That is why high filter slopes are suitable for continuous processes. Pulses are better measured with low filter slopes.

Filter settings can be changed during measuring operation, but instruments and mea-sured data are reset.

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Frequency corners

In a measuring chain, many elements -each of them with its own filter characteristics- interact. The measurement hardware InnoBeamer possesses fixed cut-off frequencies and defines a frequency range. Within this range, the cut-off frequencies of the instru-ments can be adjusted freely. The described behavior corresponds to the one till version 1.5 and is preset by activating the option Limit to corners of InnoBeamers.

In some special cases, an exceedance of the InnoBeamer's corner frequencies may be re-quired. In these cases, the option Warn if corner frequencies of InnoBeamer are ex-ceeded is to be activated. When exceeding the corner frequencies, the instrument warns with a yellow background of the respective input box.

dB-reference

Many instruments support the indication of acceleration, velocity and displacement as logarithmic dB-value. Therefore, a reference has to be defined for the respective mea-surand. The InnoMaster automatically defines 10-6 m/s², 10-9 m/s and 10-12 m as refer-ences acc. to ISO 1683. Or in other words: 1 µm/s², nm/s and pm. Other references are possible as well. You can change the decimal power for the respective unit from –24 .. +24. The instruments respond to the change immediately and adjust their display.

dB reference can be changed during measuring operation, but instruments and mea-sured data are reset, provided dB has been selected as unit.

Workspace settingsThe Workspace function of InnoMaster allows to save an entire configuration of all in-struments. Thus it is possible to upload a suitable arrangement of instruments for differ-ent measuring tasks.

The following information is saved in a workspace:

The extended settings of InnoMaster RT including views The assignment of sensors to measuring channels The individual names of the measuring channels All opened instruments and all settings of the opened instruments All event messengers and their settings

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Opening a workspace

Click on the button Open workspace. A window is opened showing the available workspaces. At least one pre-fabricated workspace is delivered together with VibroMatrix. You can add additional workspaces according to your needs.

Select the desired workspace and click on OK.

If an InnoBeamer that was connected when sav-ing a workspace is missing when opening a workspace, instruments and sensor assignments belonging to the missing InnoBeamer cannot be loaded.

Saving a workspace

One click on the button Save workspace saves the active workspace.

Saving a workspace as ...

A click on the button Save workspace as... opens a window in which you find all existing workspaces and a line where you can enter a new name.

Select a workspace to be overwritten or type in a name in for a new workspace in which the active settings are to be saved.

Click on OK.

Deleting a workspace

Workspaces should be deleted in the InnoMaster only. A click on the button Delete workspace opens a window in which you find all existing workspaces.

Choose the workspace you want to delete.

Click on OK.

Deleting the currently opened workspace will automatically cause the load of the Standard workspace.

Load last workspace

If this checkbox is selected, InnoMaster RT tries to open the most recently used workspace when it is started. This will only be successful if the InnoBeamers previously used are connected to the PC while loading the workspace.

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Measurement data recording settingsFrom VibroMatrix version 1.5 on, the raw measurement data can be recorded. The un-processed data stream – still containing its entire information content – is saved to a file before it is processed within the real-time instruments. Using the InnoMaster Replay (p.148), these data can be replayed later within VibroMatrix.

In InnoMaster RT you can determine if and where the measurement data is to be saved. The file length is re-stricted to a maxi-mum of 2 GB. When a file is filled, a new file is opened automatically.

The checkbox Save measured data to file activates or deactivates the measurement data recording. The editable line File name determines the file location. The file name may contain variables, which are set at the moment, when the file is opened for writing. These variables are:

%J the current year as a 4 digit number%M the current month as a 2 digit number%d the current day as a 2 digit number%h the current hour as a 2 digit number%m the current minute as a 2 digit number%s the current second as a 2 digit number

A message in blue letters informs you about the created file. Even if you activated Save measured data to file, the file will only be created when a measurement is started.

Adding notes to the data stream

According to experience, a measurement task often requires notes, for instance concern-ing the measurement conditions. In InnoMaster RT, these notes can be directly entered into a text field and be saved with the measurement data stream. All notes are automati-cally time-stamped and when playing the measurement data in the InnoMaster Replay, they are indicated again with their time stamp.

In order to save notes, the measurement data recording must be activated (checkbox Save measured data to file).

Enter a text into the field for notes.

Save the text in the data stream by means of the Enter key or by clicking on Save note.

Afterwards, the text turns gray in order to signal that is is already saved. But it can still be edited and as soon as a single character is changed, the text turns black again.

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6. VibroMatrix instruments

6.1. OverviewVibroMatrix is a modular system. Its software instruments can be loaded and operated separately. But they are designed to complement one another as well. Several instru-ments on one channel can work with the same sensor simultaneously. By combining different instruments you obtain the required complexity for the solution of measure-ment tasks. But you decide about the complexity level on your own.

When you arranged and configured instruments for a certain task, you can save this complete arrangement as “workspace” (page 27). You can open it again when a similar measurement is to be carried out and find your arrangement of pre-configured instru-ments ready for use.

Within workspaces, different view settings are possible. If you operate more active in-struments simultaneously as can be displayed on the screen, the instruments can be dis-played in groups. These groups can be showed or minimized at the push of a button (page 25).

In addition, VibroMatrix supports multi monitor configuration. This way you can posi-tion a high number of instruments clearly arranged.

The instruments at a glanceInnoMeter, InnoPlotter and InnoPlotter are working in the time domain and have the same abilities for signal processing. These are e.g. freely adjustable filters, measure-ment of different parameters in different units.:

InnoMeter Digital vibration meter (page 45)InnoPlotter Digital strip chart recorder (page 48)InnoLogger Logging instrument for vibration parameters (page 52)InnoScope (page 60) is a digital oscilloscope and designed for the visualization of fast vibration and shock processes.

InnoAnalyzer (page 68) works as a frequency / vibration analyzer. InnoAnalyzer Speed (page 73) is used to measure run-up or coast-down curves. It shows order tracked magnitude and phase of a vibration signal.

InnoBalancer (page 78) is used to reduce vibrations by balancing. Single-Plane-Bal-ancing and Two-Plane-Balancing are available as well as numerous correction methods.InnoMeter HVM 2631:1997 (page 90) provides all functions for the measurement and evaluation of human whole-body vibration according to standards. InnoMeter HVM 5349:2001 (page 90) is designed for the measurement and evaluation of human hand-arm vibration. And the InnoMeter HVM 6954:2001 (page 118) measures and evalu-ates vibrations on passenger and merchant ships.

Building vibrations are monitored and recorded conforming to standards with the In-noMeter 4150-3:1999 (page 126).Calibrator (page 43) provides the central calibration of sensors in VibroMatrix.

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6.2. Uniform control elementsAll VibroMatrix instruments have, where possible, a similar design and handling in or-der to ensure a quick orientation.

Start-/Stop button

All instruments feature a Start/Stop button, which changes its look depending on the state.

If an instrument was stopped, the last measured values are displayed but do not change. Instrument can be configured for a new measurement. Sta-tus displays (gain, overload etc.) are disabled.

If an instrument was started, measured values are updated continuously. Status displays are enabled and highlighted according to their state.

Expand-/collapse control panel

For a space-saving presentation, the settings can be collapsed. In this mode, only the display and the status indicators remain. Switching is possible with a button which changes its look depending on the status.

Clone function

The clone function allows you to multiply an instrument which you have purchased once. The instrument is copied with all settings. Nev-ertheless each instrument setting may be changed separately afterwards.

An example for an effective application of this function is the simultaneous measure-ment of acceleration, velocity and displacement, important for instance when measure-ments are carried out according to ISO 10816-6.

Signal source

The measuring channels as the instruments’ sig-nal source can be switched. The list shows all measuring channels which are available for the instrument, i.e. which the instruments is regis-tered on.

Gain on a measuring channel

The gain of each measuring channel can be changed in an instrument, i.e. the gain in the measurement electronics of a channel is changed. A gain change in one instrument will automatically change the gain in all other instru-ments connected to the same channel.

Besides fixed gain ranges VibroMatrix features an autoranging function. It automatically switch-es to a higher/lower range when the input signal is too high/low for more than 1 s.

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6.3. Controls of multichannel graphical instrumentsThe multichannel graphical instruments (InnoAnalyzer, InnoAnalyzer Speed, Inno-Plotter and InnoScope) have – despite their different functions – similarly designed controls. This way, user's effort to learn the handling of these instruments is minimized.

All instruments are able to display up to four channels simultaneously. Both is possible, displaying signals of different sensors and displaying the signal of one sensor with dif-ferent settings (e.g. acceleration and velocity at the same time).

Controls, values and curves of one channel are identically colored.

Graphic display

This area shows the measured values graphically. Curves have the same x-axis, but ev-ery curve has its own y-axis. Curve and corresponding y-axis are displayed with the same color (the above men-tioned color of the measuring channel). Y-axes are arranged left and right from the curves and contain the corresponding unit.

Scrolling and zooming curves

Scroll signal up: Click on the upper arrow at the desired y-axis.Scroll signal down: Click on the lower arrow at the desired y-axis.Scroll signals left: Click on the left arrow at the x-axis. Scroll signals right: Click on the right arrow at the x-axis.Scrolling left/right Left click into the curve area, hold mouse button down, drag the

signals left or right to the desired position and release mouse button.

Besides the scroll arrows every y-axis provides zooming buttons. Curve gets larger by clicking on and smaller by clicking on . If the scale of a y-axis reaches a limit dur-ing zooming the respective button disappears.

Double click on a y-axis causes an autoscaling of the respective curve. Then, the curve is displayed as large as possible.

Zooming the x-axis works similarly. Clicking on spreads the curve horizontally. Clicking on compresses the curve.

A double click on x-axis causes autoscaling as well. The meaning of autoscaling an x-axis is different for the instruments. The individual behavior is described in the respec-tive instrument's chapter.

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Zooming in the x-axis can be done as well by narrowing down the interesting interval using mouse cursor. Right click into the curve area, hold mouse button down, drag the mouse cursor left or right to the desired end position and release mouse button. During drag operation the selected area is inverse colored. Thus an interesting section can be fast and intuitively selected for detailed examination.

Changing the number of active channels

This control changes the number of active channels in multi-channel instruments. Current number is shown in the center. Button + increments the number and button – decrements it. Buttons are disabled if a limit is reached.

Changing the number of channels causes an initialization of the instrument. Mea-sured data is lost.

Export button

Measured data can be exported by means of the export button. This button looks like the typical copy symbol if Copy to clipboard was selected as export destina-tion (page 35) and like a floppy disk if Save to file was selected.

Control panel: Signal

This panel is used for setup of the incoming signal. Every ac-tive channel can be set up in-dividually and has its own tab, painted in the channel's color. The order of the controls is conform to a measuring chain:

Signal source Selection of the measuring channel, where the signal comes from.

Gain Selection of signal gain for a proper measurement range

Filter Bandpass filter for the signal to suppress disturbing frequencies. Free adjustment of the high pass filter fmin in the range 0.3 .. 1999 Hz and of the low pass filter fmax in the range of 1.3 .. 2000 Hz.

Measurand Selection of the vibration quantity to be measured.

Unit Selection of the physical unit for the measurand.

Parameter Selection of the parameter to be indicated.

Time window Free adjustment of the time window for parameter calculation in the range of 0.1 .. 10 sec. VibroMatrix instruments work with overlapping. Even if a time window of 10 sec is set up, parameter calculation takes place up to 4 times per second. For every calcula-tion the last 10 sec are considered. Thus a fluent display is guaran-teed, independent from the time window.

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Depending on the special instrument the controls for signal setting may vary. Those dif-ferences are described in the respective instrument chapter.

Except for the unit selection every change of the signal setup causes an initialization of the instrument. Measured data in the instrument is lost.

Control panel: Display

The graphic display (page 32) provides some controls to change the ap-pearance of the curves. This panel provides more controls. The left section controls y-axes the right section controls x-axis. Depending on the instrument, an x-axis can be a time or a fre-quency axis.

Checkbox Fine grid controls the density of grid lines. Scroll by determines the amount by which the curves are moved when clicking the directional arrows. Clicking on an ar-row of the navigation cross moves all curves in the selected direction.

Buttons Expand and Compress change the scaling of all curves (zoom in and out). Zooming of one curve only is explained on page 32.

These 4 buttons provide auto scale functions. De-sign depends on the domain of the displayed sig-nals: time or frequency domain.

Maximize each curve: This button scales all y-axes in

such a way, that every curve uses the entire height of the graphic display.

Same zero-line, same scale: This button puts all zero lines on top of each other and selects a common scaling in such a way, that al-

most the entire height of the graphic display is used.

Stacked curves, each maximized: The button maximizes each curve, while the curves are stacked. Thus, every curve has its own

area.

Stacked curves, same scale: This button stacks all curves and uses a common scaling for all curves.

Automatic scaling functions are constricted by maximum and minimum scale values. The maximum scale values is ± 10000.000. The minimum interval (max scale value – min scale value) is 0.01. By changing the unit scale values can be adjusted.

A click on Auto scale causes auto scaling of the x-axis. The meaning of auto scaling the x-axis is different for the instruments. Concrete behavior is described in the respec-tive instrument's chapter.

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Control panel: Cursor

Two differently colored cur-sors are available for mea-surements within the curves. Values of x-axis and vibration values of active channels at the cursor position are dis-played numerically. Cursor positioning is performed by mouse.

Cursor is enabled by checking the box Cursor 1 or Cursor 2. A vertical cursor line appears in the graphic (positioned automatically at the next measuring point).

If the mouse cursor is near the cursor line, the mouse cursor changes its icon to .

By clicking on the directional arrow buttons next to Cursor 1 or Cursor 2, the re-spective cursor can be moved by single data points for fine positioning.

If for every movement of the cursor the numerical values are interesting, then check the box Cursor movement opens this panel.

If both cursors are active a box with difference values Cursor 2 – Cursor 1 is active as well.

Control panel: Data transferAll instruments with graphic output allow you to export charts. For this purpose a con-trol panel Data transfer is available.

Two export options can be se-lected for the data: Copy to clipboard or Save to file. The transfer into the clipboard is suitable for interactive operation when other programs are used simultaneously. Saving to a file is recommended if you want to process or analyze the data in other applications later.

Click on (...) to open a directory tree and select the desired path. For the directory name variables can be used to insert information like channel name, time and date automati-cally (see page 36). A short description is displayed if the cursor is placed over the file name input field.

Measured data can be exported in four different file Formats:

Bitmap: The curve together with axis, grid and possibly activated cursors is export-ed as colored bitmap. Below the curve a text line is added showing a short descrip-tion (sensor, measuring channel, measurand etc.). If cursors are active, their coordi-nates are added as well. Bitmaps require much hard disc space, but they are very compatible with many other applications used for documentation.

PNG: A graphic file is created as described in bitmap section above. A PNG file needs around 5% disk memory compared to a bitmap without loss of graphic infor-mation. A lot of disk space is saved. Many current applications support PNGs, like Paint, which is included in Microsoft Windows XP.

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Enhanced Metafile: A graphic is generated with all the parts as described above. The resulting EMF file contains drawing instructions instead of pixels. Compared to bitmaps it can be enlarged without quality loss. But the used software must have an EMF import function.

Text: The content of the chart is exported as a table with lines of X/Y values. Each line represents an x-value and the corresponding y-values of the activated channels separated by a tab character. The file starts with a description line (including sensor, measuring channel, measurand, etc.).

File names with variables

Several instruments allow you to save measured data. You can either type in your own file name or use file names with variables. These variables are filled in automatically when the file is saved. Such variables start with a “%” character followed by a letter. They can be inserted at any position of a file name.

%i Channel-ID. This unique channel identifier is generated by VibroMatrix and in-cludes the InnoBeamer model, serial number and used channel.

(e.g. IBL2 #204 Ch1)

%k Channel name. The name according to the channel setup (page 21). If no name is specified, a default name will be used, for instance Ch1.

%n Channel number. 1 or 2 depending on the used input channel of InnoBeamer.

%J Current year, 4 digits.

%M Current month, 2 digits.

%d Current day, 2 digits.

%h Current hour, 2 digits.

%m Current minute, 2 digits.

%s Current second, 2 digits.

Example

The file name

C:\My Documents\Vibromatrix\Data\IBL2 #205 Ch1\2006-07-26_14-17-01

can be produced by a setting like this:

C:\My Documents\Vibromatrix\Data\%i\%J-%M-%d_%h-%m-%s

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Automatic recording

The placeholders within filenames can be profitably combined with another function: the automatic recording feature. It automatically saves the data of the instrument to file, either periodically or trigger-controlled. By sim-ply activating this feature a whole series of diagrams or data files can be created. Thereby, the placehold-ers provide for the automatic nam-ing of the files.

The feature behaves somewhat differently, depending on the instrument at hand: Event controlled instruments, such as the InnoScope, can automatically save a data file, when an event has occurred (Save when triggered). In order to limit the number of files generated in the case of a rapid succession of events, an inhibitory time can be adjusted within which the data for only one event is saved. Continuously measuring instruments, such as the InnoPlotter or the InnoAnalyzer, save the data with a specified clock pulse (Save periodically).

6.4. Report generationMany instruments feature a report function, the possibility to print the results in a freely chosen format. The report elements are combined into a template. These tem-plates will in the following be called re-port. Each instrument with report function already contains a suitable template. More can be added.1 Actually printing a report is thereby reduced to a push of a button.

A report can contain the following ele-ments:

1. Fixed texts: Define the content of a text, its position on the paper in X-Y coor-dinates and its format.

2. Variables: Variables contain current values from the Instrument, e.g. the mea-surement result or a pass-/fail-recognition. Similar to the texts, variables can be given a certain position and format. Variables may also be measurement dia-grams. Those can be freely positioned and scaled.

3. Pictures: Any graphic in Windows Bitmap format (bmp) and PNG format can be included in the report. You define the name and the X-Y coordinates and die scaling for printing the file.

1 The generation of pdf-files can be organized by means of the report function as well. Simply install a pdf generator on your PC and select it for printing reports. For example, a free pdf generator is FreePDF. It can be downloaded via Internet. A pdf generator is also suitable for testing a report while configuring its look.

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How to clone a report

A new report is most easily created by copying an exist-ing report, if only a few modifications are required.

Click right onto an existing report. A context menu appears.

Select Clone report. The report will be copied.

How to start with an blank report

Click right into a free space of the report list. A con-text menu appears.

Select New report. A blank report with a default name is generated and its property window opens.

Enter a significant name for your new report and confirm with OK.

Defining a fixed text

For instance, a headline is a fixed text. A fixed text is integrated in the report in the following way.

Click right on the new report. A context menu opens.

Select New text. A default text is generated and the properties window opens.

Enter the content of the text, define its position and format. Concerning the position please bear in mind that the distances are defined from the left/top edge.

Click OK.

The headline has been exemplary defined as a fixed text now. Proceed similarly with other fixed texts, e.g. the address of your company.

Defining a variable

In order to let the report become vivid, it is necessary to fill it with variables. Variables indicate current values from the instrument, e.g. measuring settings, entered values or the measurement result. Apart from those text variables measurement diagrams (graphi-cal variables) can be incorporated into the report, too.

Adding a new variable is similar to adding a text.

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Click right on the report, select New variable in the context menu. A default variable is generated and its property window opens.

Select the required variable from the list. Addi-tionally, you can define its position and font. For diagrams the zoom factor can be chosen.

Finish the dialog with OK.

Defining a picture

Your layout is professionally completed by using your own pictures. Examples for ap-plication are for instance your company logo or an often measured object as photograph or drawing.

The report accepts Windows Bitmap (bmp) and PNG files as graphic format. Addition-ally, the graphic must not exceed 1 MB. No special error messages are indicated when these conditions are not fulfilled. The picture is simply not printed.

Adding a new graphic works as follows:

Click right on the report, select New picture in the context menu. A default picture entry is gen-erated and its properties window appears.

Here you can enter the path for the graphic file and additionally the position and scaling of the picture.

Finish the dialog with OK.

After having defined all elements of the report and thus having configured its look, you should save the configuration in a workspace. So you can use your report again later.

6.5. Configuring event messengersSome instruments offer additional possibilities for transmitting measurement results. This technique is called Event Messengers in VibroMatrix. Basic descriptions for this topic can be found from page 139 on.

Instruments list up exactly the kind of messengers which they can fill with data in a reasonable way. The list con-tains two directories, one for free messenger outputs and one for the messenger outputs used by the instrument.

In a multi-channel instruments, several lists can exist, for example for event messages from a certain channel or central messages for total status.

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Using a messenger Click right on a messenger in the list of free mes-

senger outputs. A context menu opens.

Select the entry Use.

Now the event messenger is used exclusively by this instrument and can be found exactly here in the list of used messenger outputs. It is no longer available for other instruments now and disappears from the directory of free messenger outputs in all instruments.

Should the measurement with the instrument be already started, the event messenger is activated immediately, too.

Releasing a messenger Click right on a messenger in the list of used mes-

senger outputs. A context menu opens.

Select the entry Release.

The event messenger is deactivated and is listed up again in the directory of free messenger outputs in all instruments.

Configuring event messengersAn event messenger can be configured by means of different properties.

Click right on messenger. A menu opens.

Click on Properties.

The configuration depends on the respective messenger type. The different types of event messengers are described from p. 140 on.

6.6. Uniform status indicatorsAll VibroMatrix instruments possess status indicator fields below or above the display to signal the operating state. Some of these indicators can be found in every instrument. The most common ones are described here:

Sensor indicator

This indicator shows you which sensor the instrument is working with. If the instrument is switched on but no sensor is connected to the selected channel, the field will become red. In this case the dis-play unit switches to mV, representing the voltage at the corre-sponding InnoBeamer input.

Connecting a sensor: page 20

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Measuring channel

Next to the sensor indicator there is the measurement channel infor-mation. It shows the channel name (p. 21) you typed in for the sig-nal source or the default name.

Gain

The selected gain range on the selected measuring channel is also indicated in each instrument.

Changing the gain: page 31

Overload

The red indicator responds immediately if the incoming signal exceeds 95% of the measurement range of the InnoBeamer or sensor. The signals will be further processed but the results can be erroneous due to signal clipping. We recommend to switch to a lower gain.

Underload

When the input signal drops below 1% of the measuring range for more than 3 sec, this yellow indicator will appear. The measured signal can still be valid but the limited resolution and noise may affect its accuracy. Switch to a higher gain. In idle periods, it is normal that the <1% status indicator is active. No change is necessary in this case. Only if the indicator is permanently active, even during measurement, should the gain be adjusted.

For instance, if the signal consists of impact-like pulses, the gain should be adjusted in a way that no overload (>95%) occurs during a pulse. There is no harm if the underload (<1%) indicator is active between the pulses. However, it should not stay active during a pulse.

Vibration measurand

As the selected measurand is supposed to be indicated even if the control panel is collapsed, it is indicated with an abbreviation in the status line. The abbreviations are explained as follows:

Acc Acceleration Vel Velocity Disp Displacement

Parameter

As the selected parameter is supposed to be indicated even if the control panel is collapsed, it is indicated with an abbreviation in the status line. The abbre-viations are explained as follows:

Inst Instantaneous value pk abs Absolute peak value (unsigned) pk (+) Positive peak value pk (–) Negative peak value

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pk-pk Peak-to-peak value TRMS True r.m.s. value

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6.7. Calibrator – Sensor calibration for all VibroMatrix instrumentsBy means of the Calibrator, accelerometers are calibrated centrally. The calibration in-formation is available for all instruments immediately. Calibrator function requires a si-nusoidal vibration signal in the range between 10 and 1000 Hz generated by an exciter and fed in the accelerometer. The calibration level of three calibration sources are pre-configured. Additionally, you can define your own calibration level.

Displays and controls

Display

The calibrated sensitivity is displayed in mV/ms-2. The refresh rate is between 1 and 4 times per second (set refresh rate: page 25).

Signal quality

During calibration the quality of the measured vibration signal is monitored to ensure correct results. Signal quality means the absence of other frequency components besides the calibration frequency. The purer the sinusoidal signal, the higher the signal quality. It is displayed as percentage value and as bar graph.

Calibration source

As a calibration source, different types of vibration calibrators can be defined. They supply a sinusoidal vibration signal with different magnitudes: r.m.s. values of 1 m/s², 9.81 m/s² or 10 m/s². The first entry offers the possibility to enter an own calibration level.

Calibration level

If you choose Own calibration level, you can enter a value in this field. The r.m.s. val-ue of a sinusoidal signal can be entered. The permitted range is between 0.001 and 1000 m/s².

Calibrator – Sensor calibration for all VibroMatrix instruments43

Current sensor (p.40)

Display for measured sensitivity (p.43)

Current gain (p.41)

Signal quality (p.43)

Expand control panel (p.31)

Calibration source (p.43)

Start-/Stop button (p.31)

Underload indicator (p.41)

Overload indicator (p.41)

Save button (p.44)

Current channel (p.41)

Calibration level (p.43)

Channel selection (p.31)

Gain selection (p.31)

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Save button

Clicking the Save button enters the measured sensitivity into the transducer data base.

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6.8. InnoMeter® – Universal vibration meter with digital display

OverviewWhen vibrations have to be measured as significant parameters, InnoMeters are applied.

Rotating parts in drives, gears, pumps, fans and many other technical products cause perturbing vibrations. Impulse-like loads, e.g. from a vibratory pile driver in the con-struction-field, generate problems as well.

In numerous vibration standards, for instance DIN 10816, significant vibration parame-ters are defined for a reliable evaluation of the vibration situation.

These vibration parameters are precisely measured by InnoMeters and thus allow a safe assessment of the vibration state. InnoMeters are applied during the complete product cycle – development, manufacturing, final inspection, service. Weak spots are discov-ered, the success of counter measures is proven and the compliance with limits is con-trolled.

The following measurands can be displayed:

Vibration acceleration [m/s², mm/s², µm/s², nm/s², pm/s², g, mg, dB] Vibration velocity [m/s, mm/s, µm/s, nm/s, pm/s, in/s, dB] Vibration displacement [m, mm, µm, nm, pm, in, dB]

For all vibration measurands, the following parameters are available:

Instantaneous value Positive peak value Negative peak value Absolute peak value (unsigned) Peak-to-peak value True r.m.s. value Main frequency (InnoMeter Pro) Total harmonic distortion plus noise THD+n (InnoMeter Pro)

High pass and low pass filters between 0.3 and 2000 Hz are available for all parameters.

If a reflex switch is connected, InnoMeter Pro can additionally measure rotation speed [1/h, 1/min, 1/s or Hz]. Additionally, a conversion to other units is possible, for instance in order to measure length' speeds.

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Displays and controls

Numeric displayThe measured parameter is displayed numerically with the selected unit. If the numeric value becomes too high the display shows >99999. In this case another measuring unit must be selected. The display is refreshed between 1 and 4 times per second (refresh rate settings: page 25)

Copy the measurement resultBy clicking this button, the measured value incl. its unit is copied to clipboard and can be copied into other application from there.

Select sensor typeWhen working with the InnoMeter Pro, you can choose between vibration sensors and photoelectric reflex switches. The control panel changes acc. the sensor.

Control panel for vibration sensorsWhen measuring vibration parameters, the signal processing can be adjusted here. The order of settings follows the measuring chain.

Signal input Selection of measuring channel and gain range.

Filter Freely adjustable high pass frequencies from 0.3 to 1999 Hz and low pass frequencies from 1.3 to 2000 Hz. Minimum range be-tween fmin and fmax is 1 Hz.

Measuring Selection of measurand, unit and parameter to be displayed as well as of the time window for current parameters.

InnoMeter® – Universal vibration meter with digital display46

Current sensor (p.40)

Current measurand (p.41)

Channel (p.41)

Current gain (p.41)

Underload (p.41)

Start-/Stop button (p.31)

Clone instrument (p.31)

Current parameter (p.41)

Select unit (p.46)

Select parameter (p.46)

Low pass frequency (p.46)

Time window (p.46)

Numeric display (p.46)

Select gain (p.31)

Expand/collapse button (p.31)

Select sensor type (p.46)

Select channel (p.31)

Select measurand (p.46)

Overload (p.41)

Copy measurement result (p.46)

High pass frequency (p.46)

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Control panel for rotation speed sensors

Additionally to vibration parameters, the InnoMeter Pro also processes digital pulses. Usually this function is used for measuring rotation speeds as sensor emits one pulse per rota-tion. As a sensor, for instance a photoelectric reflex switch is suitable. It optically scans a reflecting label attached to the rotor.

The pulses measured per time rate are indicated as rotation speed with the unit 1/h, 1/min, 1/s or Hz as well. In this case, the time window determines the smallest measurable rotation speed. With a time window of 1 s, it is 1 Hz, i.e. 60 1/min. With 10 sec, it is 0.1 Hz, i.e. 6 1/min.

Measuring user-defined measurands with pulse generators

Not only the rotation speed can be deduced from the pulses, but other measurands as well. For instance, if a length of pa-per or fabric is transported by a rotor, one rotation always stands for one part of the length as well. Evaluated per time unit, this measurement indicates the length' speed.

For this purpose, additional input fields are available when selecting User defined as Measurand.

A name and a unit can be entered for the measurand. Further-more, a conversion factor has to be entered. It defines which amount of the user-defined measurand corresponds to one ro-tation respectively (more generally) one pulse.

This new measurand is indicated per selected time unit as well. For example, a length in m results in m/min or m/s as well, depending on the set-tings.

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6.9. InnoPlotter® – Digital strip chart recorder for vibration parameters

OverviewThe InnoPlotter is a digital strip chart recorder for visualizing trends of vibration param-eters. It features a memory for 24 hours continuous recording and various display modes. Data can be measured with two cursors. Exporting data into other applications as graphic or text is possible as well.

Rotating parts in drives, gears, pumps, fans and many other technical products cause perturbing vibrations. Impulse-like loads, e.g. from a vibratory pile driver in the con-struction-field, generate problems as well.

In numerous vibration standards, for instance DIN 10816, significant vibration parame-ters are defined for a reliable evaluation of the vibration situation.

The InnoPlotters measure these vibration parameters and display their trend for a longer time graphically. Thus, they are especially convenient for longer test sequences, which can also run unattended. Weak spots in the continuous operation become obvious, the success of counter measures is proven and the compliance with limits is controlled.

The following measurands can be displayed:

Vibration acceleration [m/s², mm/s², µm/s², nm/s², pm/s², g, mg, dB] Vibration velocity [m/s, mm/s, µm/s, nm/s, pm/s, in/s, dB] Vibration displacement [m, mm, µm, nm, pm, in, dB]

For all vibration measurands, the following parameters are available:

Instantaneous value Positive peak value Negative peak value Absolute peak value (unsigned) Peak-to-peak value True r.m.s. value

High pass and low pass filters between 0.3 and 2000 Hz are available for all parameters.

In case of longer operation, the InnoPlotter displays the data of the last 24 hours.

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Displays and controls

Control panel: SignalThis panel exists similarly in other instruments and is main-ly described on page 33. In ad-dition to the usual functions, it is here possible to switch on the display of the digital chan-nel. This helps, e.g., to analyze complex vibrational patterns which are nevertheless repeating. The digital input may be fed a voltage pulse, when such a pattern starts. This pulse appears as a marker in the chart in addition to the measurement curves. Using these markers, significant changes in the vibrational behavior can be associated to certain parts of the motion sequence.

For this function, the checkbutton Show digital channel data is activated. The status of the digital channel is displayed near the lower edge of the chart then. The digital sig-nal source is the digital input of the InnoBeamer, which also provides the analogue sig-nal for the first instrument channel. The graphical display of the digital channel is ex-plained on page 51.

InnoPlotter® – Digital strip chart recorder for vibration parameters49

y-t chart (p. 51)

Zoom signal (p. 32)

Scroll signal (p. 32)

Current sensor (p. 40)

Current channel (p. 41)

Current measurand (p. 41)

Current parameter (p. 41)

Current gain (p. 41)

Underload (p. 41)

Overload (p. 41)

Start-/Stop button (p. 31)

Add channel (p. 33)

Number of active channels (p. 33)

Remove channel (p. 33)

Export button (p. 33)

Clone instrument (p. 31)

Expand/collapse control panel (p. 31)

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Control panel: Display

This panel is divided into 2 areas. The left area is for the Y-axes, the right for the time axis. Basic operation of this panel is described on page 34.

Button Automatic scale in-fluences the scaling of the time axis. The axis is automatically adjusted to the minimum and maximum value of all recorded data. Depending on the settings, it can be more than currently visible in the window.

Time axis can be scrolled automatically, by selecting Automatic scroll to show the newest incoming data. Shown time interval of signal can be changed by Compress and Expand.

Control panel: Cursor

This panel exists similarly in other instruments and is de-scribed on page 35.

Control panel: Data transfer

This panel exists similarly in other instruments and is de-scribed on page 35. If text ex-port is selected, the exported time values represent the elapsed time since starting the plot.

Control panel: Messengers

By means of event messen-gers, the InnoPlotter can transmit currently measured values but also saved mea-surement date and graphics. Only the periodically saved files (page 37) are taken into consideration, in contrast to the manually exported files (page 35). Event messengers are described from page 139 on and the connection with event messengers is described on page 39.

For transmitting saved measurement data, it is necessary to use channel O. It lists up event messengers type e-mail. As soon as a file was created by periodical saving, it is automatically sent by means of the used e-mail messenger.

The single channels 1..4 in contrast transmit the currently measured values to suitable messengers.

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Digital strip chart

The graphic displays the de-veloping of a selected parame-ter. The refresh rate is equal to the the numeric value display rate, i.e. 1..4 times per second. When the curves reach the right end of the graphic, time axis and curves are scrolled left automatically if Automat-ic scrolling was selected.

The time axis is labeled with the absolute time at the top and with the past time since the start of measuring at the bottom. Thus, each event can be uniquely identified using two time values.

Each of the up to four measurement curves has its own color which corresponds to the respective axis as well as to the display in the signal and cursor control panel. The y-axes are situated left and right from the strip chart and include the indication of the unit.

In some cases, the InnoPlotter will be reset and restarted in order to avoid inconsistent results, for instance if the measuring channel or the frequency range is changed during operation. Values that were acquired under such different conditions can not be mean-ingfully displayed together in one curve. It is different when gain or vibration transduc-er are changed, because only the level of the input signals is changed here. This is auto-matically compensated for. However, due to transient effects these events may cause a momentary peak or collapse in the curve.

Still, a gain or sensor change does not cause a reset of the graphic. But a small text label is stuck to the curve informing about the adjustment. For example, G:10 means that the gain changed to 10. These labels scroll together with the curve.

Display of the digital channel in the y-t chart

If it is activated (p.49), the state of the digital channel will be displayed in addition to the vibrational signals. It is shown as a line at the lower edge of the chart, which can take on three colors, depending on the state of digital channel.

The digital channel is binary and is in one of two states (0/1, off/on, low/high) at any time. State 0 is shown in white and state 1 is shown in black. The state can change up to 10 000 times within one display cycle of the InnoPlotter. If both states occur within one display cycle, the digital channel is plotted in gray.

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6.10. InnoLogger® – Logging of vibration signals and vibration parameters

OverviewFor the monitoring of vibration parameters and their logging for later analysis, the In-noLoggers are available.

Rotating parts in drives, gears, pumps, fans and many other technical products cause perturbing vibrations. Impulse-like loads, e.g. from a vibratory pile driver in the con-struction-field, generate problems as well.

In numerous vibration standards, for instance ISO 10816, significant vibration parame-ters are defined for a reliable evaluation of the vibration situation.

The InnoLoggers measure these vibration parameters and monitor their level regarding the exceeding of limits.

Alarming situations are signaled and allow a fast pass-fail-recognition because of col-ored bars. In addition, the alarm can initiate the logging of vibration parameters. This data can be used for further analysis.

The following measurands can be monitored:

Vibration acceleration [m/s², mm/s², µm/s², nm/s², pm/s², g, mg, µg, dB] Vibration velocity [m/s, mm/s, µm/s, nm/s, pm/s, in/s, dB] Vibration displacement [m, mm, µm, nm, pm, in, dB]

The following parameters are available for all measurands:

Instantaneous value Positive peak value Negative peak value Absolute peak value Peak-to-peak value True r.m.s. value

High pass and low pass filters between 0.3 and 2000 Hz are available for all parameters.

On the one hand, the InnoLoggers can log raw data (instantaneous values) in full speed (10000 values per second and measuring channel). Then the logged data contains full information for a subsequent signal processing in external programs.

On the other hand, the InnoLoggers offer a variety of signal conditioning options before logging. That is how raw data can be pooled and logged as preconditioned parameters This compression of information reduces the data volume immensely.

The InnoLoggers can not only log raw data (instantaneous values) in full speed (10000 values/sec), but also preconditioned parameters. Additionally, the parameters can be logged in display speed (1..4 values/sec) as well.

In combination with the event messengers (page 139), measured values and vibration states can be presented in an extra display, be sent to radio switches as alarms or logged data can be sent via e-mail automatically.

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Displays and controls

Status indicator

This indicator displays several states.

OK is shown as long the measured value is within the limits.

If the value exceeds a limit status indicator displays TRIG, as long as no alarm was tripped due the alarm delay time.

If the measured value exceeds a limit longer than alarm delay time (page 54), state switches to ALARM.

Progress bar

After starting the InnoLogger progress bar shows the fill level of the pretrigger memory. If an alarm were tripped progress bar displays the logging process.

Logging counter

This field indicates the number of loggings since starting the InnoLogger. Thus you can check how many alarm conditions occurred during an unattended operation.

Value display

The measured values are presented numerically and in a bar graph. The refresh rate for both displays can be adjusted between 1 and 4 times per second (refresh rate settings: page 25).

InnoLogger® – Logging of vibration signals and vibration parameters53

Progress bar (p.53)

Status indicator (p.53)

Logging counter (p.53)

Remove channel (p.33)

Number of active channels (p.33)

Add channel (p.33)

Current sensor (p.40)

Current channel (p.41)

Current measurand (p.41)

Current parameter (p.41)

Current gain (p.41)

Underload (p.41)

Overload (p.41)

Start-/Stop button (p.31)

Clone instrument (p.31)

Expand/collapse control panel (p.31)

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The numeric values is shown together with the selected unit. If this numeric value becomes too high the display will show >99999. In this case an appropriate unit should be selected.

The bar graph display shows the measured level based on the adjusted alarm limits. The red triangles above mark these limits. The bar graph length beyond the alarm limits can be changed in Control Panel: Alarm.

Additionally, the bar graph changes its color according to the alarm condition. It is green as long as the signal level is within the alarm limits. The color will change into yellow if an alarm limit was exceeded but no alarm was tripped because of the alarm delay. When this delay time is over and measured value still exceeds a limit, the bar graph turns red.

Control panel: Signal

This panel provides adjust-ments of the input signal indi-vidually for each channel. The order of settings corresponds to the order in the measuring chain.

Signal input Selection of measuring channel and its gain.

Filter Freely adjustable high pass frequencies (fmin) from 0.3 to 1999 Hz and low pass frequencies (fmax) from 10 to 2000 Hz

Measuring Selection of vibration quantity, its unit and of the measured parame-ter. Parameters are calculated for a moving time window which length can be entered in the range of 0.1 .. 10 seconds.

Digital channel switches on/off: This function allows to start and also to stop the In-noLogger by an external trigger signal. The external trigger signal is supplied by the digital channel DCh1 (p. 16).

Control panel: Alarm

Two alarm limits can be spec-ified, a maximum and a mini-mum limit. An alarm is tripped when the signal exceeds the maximum limit or falls below the minimum limit. If short-time peaks are not supposed to cause an alarm, an alarm De-lay can be defined. An alarm will be only tripped if the signal remains beyond the alarm limits longer than this delay time.

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The bar graph (p. 53) is automatically scaled according to the alarm limits. To watch the signal beyond these limits, a bar graph extension can be defined.

The extension of the bar graph display can be specified in percentages. The span be-tween the upper and the lower limit is regarded as 100 %.

Example:

Upper limit: 100 mm/sLower limit: 20 mm/sUpper bar graph extension: 10 %Lower bar graph extension: 10 %Span 100 %: 100 mm/s - 20 mm/s = 80 mm/s.Extension 10%: 80 mm/s · 10% = 8 mm/sUpper bar graph end: 100 mm/s + 8 mm/s = 108 mm/sLower bar graph end: 20 mm/s – 8 mm/s = 12 mm/s

Alarms of the single channels are combined (or'ed / and'ed) to an overall alarm. The overall alarm can be tripped if only one channel triggers (OR gating, disjunction) or when all channels have active alarms (AND gating, conjunction).

Control panel: Logging

Log time

A pretrigger and a posttrig-ger can be specified for data logging. The pretrigger de-fines the logging time before alarm tripping whereas the posttrigger defines the logging time after alarm tripping. The pretrigger can log up to 30 seconds, the posttrigger up to 24 hours.

Logging mode

The logging speed defines the data rate which is used for recording. The following 3 modes are available:

1. Sum values: The output of the selected parameter (true r.m.s. value etc.) is the re-sult of summing many single values. These sum values are displayed with a refresh rate between one and four times per second. The same rate is used for recording when the option sum values is selected. In this mode InnoLogger produces small log files. It is suitable when only the progress of sum values is important.

2. Single values with maximum logging speed: This mode logs data with a maxi-mum speed of the InnoBeamer L2: 10,000 values/sec. Relatively large log files are produced within short time. Not only the instantaneous values can be logged, but also the other parameters available for vibration measurement. Recording of single values allows to obtain a lot of further information about the vibration signal by post-processing. For this purpose, instantaneous values should be recorded because they are the raw material for further analyses.

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3. Single values with adaptive logging speed: This mode allows post-processing for further analyses as well. However, the file size is smaller than it would be with maximum logging speed. This logging mode evaluates the adjusted low pass fre-quency in the InnoLogger signal settings and the filter slope in the InnoMaster set-tings. Frequency components that have already been eliminated by the low pass fre-quency filter are not saved in the file as well. Still, the so-called Nyquist criteria is observed so that the logged data can be used for further analyses unconsidered.

Log file

In order to enable InnoLogger to record automatically, it is necessary to define the log file names in advance. If you want to use standard names created by the software acti-vate the Create default file names checkbox. In this mode the log file is named as fol-lows:Vibromatrix directory\Data\InnoBeamer ID\

year-month-day hour-minute-second InnoLogger-ID

This could be resolved to name like this: C:\Programs\Innomic\Vibromatrix\Data\IBL2 #205 Ch 1\2006-07-26 14:17:01 36456

To enter an individual name, deactivate the checkbox Create default file names. You can select the desired directory by clicking on (...).

Enter a fixed file name. You may also use or one or more of the file name variables de-scribed on page 36. A short description of these variables can be obtained by placing the mouse pointer above the File name field.

Format: The generated file always contains a head in text format. For the data to be logged you can decide whether you save them in binary or text format. The binary for-mat is more compactly, the file is smaller than in text format. The text format in turn is easier to handle. You can watch the data in a text editor or export it into a spreadsheet uncomplicated. More information concerning the data format can be found on page 57.

Additionally, you will find information about log time and required memory space in the Log file. The text color indicates the available disc space. The file size text color in-dicates the available disc space:

Green Enough disc space available for at least 10 more log files.

Yellow Disc space for 1 to 10 log files available.

Red Disc space for less than 1 log file available. Logging is not possible.

Control panel: Messengers

By means of event messen-gers, the InnoLogger can transmit currently measured values as well as alarm states and logged measurement data. Event messengers are described from page 139 on and the connection with event messengers is described on page 39.

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The single channels 1..4 transmit the currently measured values and their alarm state to the connected messengers.

For transmitting logged measurement data, it is necessary to use channel O (=Overall). As soon as a file was logged, it is automatically sent by means of the used e-mail mes-senger. Additionally, channel O signals the total alarm state via messengers.

Data formatThe log files generated by the InnoLogger consist of a header in text format and mea-suring data in binary or text format. If you open the file with a text editor, you will see the header. It provides information about the measurand, the selected parameter etc. In the following, a header is analyzed as an example:Version=1.6InnoLogger version number which allows the software to react on future InnoLogger versionsPretrigger=5Pretrigger time in seconds.Posttrigger=30Posttrigger time in seconds.SampleRate=10000Samples per second.NumChannels=3Number of active channels.

Channel settings

Settings for channel 1 follows, which are marked by the suffix „_1“.InputID_1=Ch1 - IBL2 #1000Input-ID is a channel identifier consisting of channel number, InnoBeamer model and serial number.InputName_1=Bearing 12Channel name as defined in the channel settings (described on page 21).Sensor_1=KS80 3346Sensor name as defined in the sensor settings (described on page 19).Measurand_1=0Index in a list of vibration measurands, starting with zero.MeasurandName_1=AccelerationVibration measurand as text.Unit_1=1Index in a list of measuring units, starting with zero.UnitName_1=mm/s²Unit as text.Parameter_1=5Index in a list of parameters, starting with zero.ParameterName_1=True r.m.s.

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Parameter as text.fmin_1=0.3High pass frequency in Hz.fmax_1=200Low pass frequency in Hz.LimitMax_1=75Upper limit.LimitMin_1=0Lower limit.UpperAdd_1=10Upper bar graph extension.LowerAdd_1=0Upper bar graph extension.

If more than 1 channel is active, settings for the next channels will follow. Suffix „_1“ is replaced by „_2“, etc.

Measured data

A few entries follow describing the data format:DataType=binaryDataType can be „binary“ for binary data or „Text“ for text format.DataStart=1024DataStart describes the byte position of the first value in the file, if binary data are saved. If text format is selected, this value describes the number of the first line contain-ing measurement data.DataSize=4DataSize describes the data type of logged values, if binary format was selected. Data-Size = 4 is for 4 byte wide floating point values, DataSize = 8 stands for 8 byte wide values. 4 byte wide values are often named float type, 8 byte wide values are named double. If text format is selected, the data size entry is not generated.

Data follows in columns for every channel and rows for the chronological saved values (Example for 3 channels):

value 1, channel 1; value 1, channel 2; value 1, channel 3;value 2, channel 1; value 2, channel 2; value 2, channel 3;value 3, channel 1; value 3, channel 2; value 3, channel 3;value 4, channel 1; value 4, channel 2; value 4, channel 3;...

The DataSize parameter informs your analysis software about the used data type. DataStart is used by the software to set the data pointer to the first recorded value. Now all measured values can be read to the end of the log file. The information from the header about vibration measurand (MeasurandName) and measuring unit (Unit-Name) can be used to label the Y-axis. Time axis information is found in the parameter SampleRate.

There are two ways to calculate the number of logged values. One way is to determine the file size, to subtract the value DataStart and to divide the result by DataSize. The

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other way is to add the values Pretrigger and Posttrigger and to multiply them by SampleRate and NumChannels.

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6.11. InnoScope® – Displaying fast vibration and shock events

OverviewThe InnoScope allows the signals' shape analysis of fast vibration and shock processes in time domain. Especially shock processes and beats can be displayed in detail, mea-sured and exported for documentation or further processing.

So products that are exposed to shocks can be optimized, for instance in the packaging sector. For the automotive industry, the automatic calculation of the HIC (Head Injury Criterion) was integrated, amongst others. The InnoScope is likewise used to measure decay processes and transients, e.g. for saw blades, drive shafts of mixing machines and other machine parts. Together with the InnoAnalyzer the natural frequencies can be de-termined.

The signals can be displayed for the following vibration measurands.

Vibration acceleration [m/s², mm/s², µm/s², nm/s², pm/s², g, mg] Vibration velocity [m/s, mm/s, µm/s, nm/s, pm/s, in/s] Vibration displacement [m, mm, µm, nm, pm, in]

Up to 4 curves can be displayed. They can represent both, signals of different sensors and signals of the same sensor but measured with different parameters.

The InnoScope has a high memory depth. The acquired signal can be recorded until up to 1 second before and 110 seconds after the trigger event with full resolution of 100 µs.

Two differently colored cursors are available to support you with the signal developing analyses.

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Displays and controls

Trigger stateThis status field shows the triggers state for the selected channel (p.62). If the Inno-Scope is running, 3 states can be indicated.

Ready: No trigger process is active and InnoScope waits for a trigger.

TRIG: Trigger condition was matched and an event was triggered. Elapsed record-ing process is shown in percent.

STOP: A single shot trigger finished and no further event can be triggered. To re-lease the trigger, click left into the trigger state indicator.

The other channels display Trigger: Inactive.

Control panel: SignalThis control panel influences the input signal. It exists simi-larly in other instruments and is described on page 33.

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Chart display (p.32)

Zoom signal (p.32)

Scroll signal (p.32)

Current sensor (p.40)

Current channel (p.41)

Current measurand (p.41)

Current gain (p.41)

Overload (p.41)

Underload (p.41)

Trigger state (p.61)

Start-/Stop button (p.31)

Add channel (p.33)

Number of active channels (p.33)

Remove channel (p.33)

Export button (p.33)

Clone instrument (p.31)

Expand/collapse control panel (p.31)

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Control panel: Display

The display can be configured here. This panel is divided into 2 areas. The left area is for the Y-axis, the right for the time axis. Operation of this panel is described on page 34.

Control panel: Trigger

The trigger Mode defines the source and the mode of the trigger. The InnoScope has two trigger sources. Depend-ing on which one is chosen, the list of selectable trigger channels changes.

analog: One of the active measurement channels is the trigger source. All present channels are shown in the selection list. For rapid orienta-tion each is shown with its specific background color.

digital: A digital channel of a connected InnoBeamer is the trigger source. The selection list shows all InnoBeamers which are equipped with the InnoScope.

The trigger Mode defines in which way the display acts before and after triggering.

Free run: The signal runs through the display freely before and after trigger-ing.

Normal: The signal runs through the display freely after the start and before the first triggering. After a trigger event, the triggered time signal remains in the display. It is refreshed as soon as a new trigger event occurs.

Single shot: The signal runs through the display freely after the start and before the first triggering. After a trigger event, the trigger record remains in the display. InnoScope does not react to new trigger events any-more. You can click on this field to activate the trigger again (page 61).

The trigger Level is freely adjustable from –10000 to +10000 in the selected unit. Trig-ger level can be set by mouse as well, if an analog source is selected. Click left on the trigger triangle at the right of the chart, hold the button down and move the triangle up or down to the desired level. After releasing the mouse button, trigger level is set. If a digital source is selected, the level selection and the corresponding triangle are not shown. The digital channel only works with the values 0 and 1 and, therefore, does not need a trigger level.

It is possible to trigger on raising or on falling edges.

The trigger Timing consists of the time before the trigger and the recording time after-wards. The Pretrigger is firmly preset on 1 second. The Posttrigger can be adjusted up

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to 10 seconds. If such a long recording time is not necessary, we recommend to shorten the posttrigger. Thus it is possible to react to new trigger events quicker.

If you select Adaptive Posttrigger, the posttrigger is coupled with the right window side. Data is always recorded up to the right window side only. If you wish to have more data but keep the time interval, deactivate the adaptive posttrigger. In this case, data is recorded for the time you selected in the posttrigger field, no matter what time interval is displayed currently.

Control panel: Cursor

Two differently colored cur-sors are available for measur-ing the graphical display. This panel exists similarly in other instruments and is de-scribed on page 35.

Control panel: Data transfer

This panel exists similarly in other instruments and is de-scribed on page 35. If text ex-port is selected, the time val-ues are exported in millisec-onds.

Control panel: Evaluation

The Pro version offers functions for the automated evaluation of the recorded signal. This functions can be configured and are carried out immediately after the signal recording. Currently, two evaluations are available:

1. Decay time2. Head Injury Criterion (HIC)

Evaluation: Decay timeA pulse often causes dying vi-brations on structural part. They are to be died out in the shortest possible time so that an operation without vibra-tions is possible again after-wards. Measuring such decay processes is carried out auto-mated with the InnoScope Pro.

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If there is a trigger event caus-ing a recording, the InnoScope automatically envelops the sig-nal afterwards, so that the de-cay curve is created.

For measuring the decay time, two limits can be set between which the time measurement is to be carried out. The val-ues can be either stated as ab-solute vibration values or as percentage of the signal's maximum.

The intersection of decay curve and highest limit value on the time axis marks the start and the intersection of decay curve and lowest limit value marks the end of the time measurement.

In addition to the limit val-ues, the graphic evaluation display can be controlled in-dividually for each measuring channel well. The results are also indicated individually for each measuring channel, so that for instance three-dimensional measurement and immediate evaluation are possi-ble.

Evaluation: Head Injury Criterion (HIC)The Head Injury Criterion (abbr.: HIC) is a criterion for the assessment of head injuries as a result of a car accident. This nondimensional value al-lows to compare the safety of car occupants in different ve-hicle variants. Depending on the monitored time interval – 15 or 36 ms – the HIC15 re-spectively HIC36-value is spec-ified in order to allow a better differentiation.2 The HIC limit value is 1000. Higher val-ues signify serious injuries.

2 Source: Wikipedia

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Since the impact occurs with-in a relatively short time, we recommend to limit the as-sessed time range. Long time ranges increase the dura-tion of evaluation and – dur-ing measurement – should be combined with the single shot trigger only (page 62). In the set time range, the software looks for HIC with its adjustable time interval. Additional to HIC15 respectively HIC36, the time interval can also be defined freely.

Control panel: Additional instruments

According to the VibroMatrix philosophy, the single instruments are not overburdened with functions another VibroMatrix instrument can fulfill better. For the detailed visual-ization of signals in the time domain, the InnoScope is available. It offers its services to the InnoAnalyzer, which shows signals in frequency domain. Both instruments can work as a team. InnoScope can act as a trigger source in order to let InnoAnalyzer car-ry out FFTs only if a trigger event occurs.

The connection between the two instruments is initiated by the InnoScope. Click on Inno-Analyzer in the Additional instruments panel. The Inno-Analyzer takes over the Inno-Scope's data, calculates and displays the frequency spectrum.

An InnoAnalyzer Pro is able to work together with the instruments InnoScope Pro and InnoScope, whereas an InnoAnalyzer can cooperate with an InnoScope only. The rea-son is that the InnoScope takes over team control and determines the measurand for ex-ample. The InnoScope Pro is able to display vibration velocity and displacement, the In-noAnalyzer is not. That is why the InnoAnalyzer could not process the respective data from the InnoScope Pro.

As soon as you started an InnoAnalyzer, it positions itself on the right side of the Inno-Scope and keeps this position when the InnoScope window is moved. So you have a good view on the time and frequency domain of a signal.

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The InnoAnalyzer is subordinated to the InnoScope now and analyzes exactly the con-tent of the InnoScope’s time window. For instance if our interested in the time period 1 to 3 seconds after the trigger event, you make the setting in the InnoScope this way and the InnoAnalyzer will analyze the time signal exactly one second after the trigger event. The following automatisms have been preset:

If you start the InnoScope, the InnoAnalyzer is started as well. If you stop the InnoScope, the InnoAnalyzer is stopped as well. If you move the InnoScope, the InnoAnalyzer moves as well. If the InnoScope triggers, the InnoAnalyzer analyzes. If the InnoScope waits for a trigger event, nothing is analyzed. If you close the InnoScope, the InnoAnalyzer is closed as well. Changing the Signal Source in the InnoScope means the InnoAnalyzer changes its

Signal Source as well. Precondition: the InnoAnalyzer is registered for this channel as well. If not, it cannot analyze this signal source.

Changing the Measurand in the InnoScope means the InnoAnalyzer changes its Measurand as well. But the units for this measurand can be selected freely.

If you adjust fmax in the InnoScope, the Maximum Frequency in the InnoAnalyzer is set according to that.

If you adjust the time period in the InnoScope, the Time Window for one FFT is set according to that. Since only discrete time windows are possible in case of having a constant sample rate, the time window of the InnoScope is regarded as maximum. Usually a value of >50..100% of the time window is used. The analysis always starts at the point in the time signal which appears on the left window frame of the Inno-Scope.

If certain settings should prevent an analysis, this is indicated in InnoAnalyzer by yel-low marks beside the problematic parameters. Then, parameters for the InnoAnalyzer given by the InnoScope can only be changed in the InnoScope, too.

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Control panel: Messengers

By means of event messen-gers, the InnoScope can transmit saved measurement graphs by e-mail. Only the automatically saved files (see page 37) are taken into con-sideration, in contrast to the manually exported files (page 35). Event messengers are described from page 139 on and the connection with event messengers is described on page 39.

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6.12. InnoAnalyzer® – Frequency and vibration analysis

OverviewFor the frequency analysis of vibrations, InnoAnalyzers are used. Rotating parts in drives, gears, pumps, fans and many other technical products cause perturbing vibra-tions. Often numerous parts with different rotation speed cause mechanical vibrations so that a superposition of frequencies is generated.

InnoAnalyzers decompose this superposition into the different frequency components again by Fourier-transformation. So you can detect the parts which are primarily re-sponsible for the vibrations. As a consequence, mechanical malfunctions are precisely and quickly tracked down in development, quality control or service. The success of ac-tions to reduce vibrations, e.g. balancing with the InnoBalancer, is proven measurably.

Generally, the prejudice of frequency analyzers being difficult to handle still exists. In-deed, in case of an unfavorable configuration, many pieces of information remain hid-den. But the InnoAnalyzer has a groundbreaking configuration system. By means of the InnoAnalyzer, even users with rare contact to digital signal processing achieve signifi-cant analyzes. Experienced users will also like the ease with which they can quickly get an overview.

In the automatic mode, you just define the required frequency range and select opti-mization for either magnitude or frequency – that's all. The InnoAnalyzer works on its own now and it always displays more than 400 lines.

On the other hand, many more parameters are available for experienced users so that they can configure the analysis according to their specific demands.

For example, the following window functions are available: Rectangle, Hann, Flattop, Blackman, Hamming, Bartlett.

The frequency components can be displayed for the following measurands:

Vibration acceleration [m/s², mm/s², µm/s², nm/s², pm/s², g, mg, dB] Vibration velocity [m/s, mm/s, µm/s, nm/s, pm/s, in/s, dB] Vibration displacement [m, mm, µm, nm, pm, in, dB]

The levels of the respective frequency components can be displayed as the following parameters:

Positive peak value True r.m.s. Value

Switching the frequency axis from Hz to 1/min simplifies the allocation of frequency parts and rotating parts.

Two differently colored cursors with value display support you during the analysis. The export of the curves into other applications as bitmap or as pairs of X/Y values in text format is easily possible.

Frequency analyses can be carried out continuously as well as in response to a triggered time signal. In this case the InnoAnalyzer is working together with the InnoScope.

During unattended operation, analyses can be saved periodically or be sent via e-mail.

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Displays and controls

Progress displayGraphics display shows data immediately after switching on. Displayed data is provi-sional at first, because not enough data is available for a complete analysis. Progress display shows the current status. Data is valid only when this display shows 100%.

Control panel: SignalThis panel provides parame-ters for the incoming signal. Operation is similar to other graphical instruments. There-fore a general description can be found at page 33. InnoAna-lyzer provides additionally a selection of FFT-mode (ref. next chapter).

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Graphics display (p.32)

Zoom signal (p.32)

Scroll signal (p.32)

Current sensor (p.40)

Current channel (p.41)

Current quantity (p.41)

Current parameter (p.41)

Current gain (p.41)

Underload (p.41)

Overload (p.41)

Progress display (p.69)

Start-/Stop button (p.31)

Add channel (p.33)

Number of active channels (p.33)

Remove channel (p.33)

Data export button (p.33)

Clone instrument (p.31)

Expand/collapse control panel (p.31)

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FFT-modes

3 FFT modes are available for the InnoAnalyzer, 2 automatic modes and one manual.

Automatic for periodic processes, optimized magnitude accuracy Automatic for periodic processes, optimized frequency accuracy Extended settings for FFT

During an FFT analysis, only a section of an infinite signal is analyzed. As a conse-quence, the frequency analysis does not always indicate the accurate magnitude or fre-quency. That is why the automatic mode distinguishes between optimized frequency or magnitude accuracy.

In the automatic mode, the user simply defines the desired frequency range. The Inno-Analyzer provides an optimized setting of sample rate, measurement duration and over-lapping so that there is an optimum line density and a refresh rate acc. to the central configuration in the InnoMaster (page 25).

Optimum line density means: The number of lines in the selected frequency range is higher than actually shown is the display due to the limited horizontal pixel number of the display (approx. 440). Whether you watch the range from 0 to 2000 Hz or from 1000 to 1010 Hz, all visible lines are covered by actually calculated FFT-lines. Averag-ing is not applied and overlapping is automatically calculated in a way so that as many FFTs per second are calculated as needed to guarantee the selected refresh rate.

The extended settings on the contrary allow the more experienced user more leeway for further optimizations. For him/her, an additional panel is available, which will only ap-pear if the extended settings for FFT are selected.

Control panel: FFT

This panel offers extended settings for the calculation of the FFT.

When configuring the param-eters manually, the user pro-ceeds as follows: Firstly one selects the length of the time period to be analyzed. It can be selected in Time window for 1 FFT. Since an FFT does not allow any time values but only discrete numbers, the time period is not expressed by an exact value, but by a minimum value.

In general, the time signal can be analyzed for the complete frequency range given by the InnoBeamer device. For some applications, for instance in the civil construction sector or human vibration analysis, only a part of this frequency range is of interest. If the user limits the Max. frequency to analyze, the memory load is minimized. The free capacities are available for the following settings then.

The Windowing function optimizes the time signal before analyzing in order to avoid certain negative effects. Unfortunately, there is no window function which could be considered the best solution for all application. In general, the following characteristics can be mentioned:

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Rectangle: Suitable for the analysis of single impulses, especially if the impulse is at the beginning of the time period.

Hann: Suitable for the analysis of continuous signals which require a high fre-quency resolution with as little leak effect as possible.

Flattop: Suitable for the analysis of continuous signals with optimized magnitude.

For the frequency analysis, the time signal is divided in successive sections. With Over-lapping, the user defines how much these time sections overlap each other. For instance, an overlapping of 10% means that a time section contains 10% time data from the pre-vious section.

The individually calculated FFTs can be combined in a few different ways. The ampli-tudes of the frequency lines can be calculated from several FFTs using certain func-tions. The possible functions are the following:

Moving average

The magnitudes of each frequency are arithmetically averaged over. A moving average is calculated, i.e. the average values of the last n FFTs are displayed at any time. n is the selected number of FFTs. If this number of FFTs does not exist in the beginning, the av-erage value is calculated with the existing FFTs.

Moving peak hold

The largest magnitude for each frequency is determined. A moving peak value is calcu-lated, i.e. the peak values of the last n FFTs are displayed at any time. n is the selected number of FFTs. If this number of FFTs does not exist in the beginning, the average value is calculated with the existing FFTs.

Interval average

The average of the magnitudes extends to all FFTs since switch-on.

Interval peak hold

The amplitude peak values are determined from all FFTs since switch-on.

The user is given a clear overview about the results of his/her settings. He/She learns with how many lines the FFT is working, how many FFTs are calculated per second etc. An important parameter here is the Memory load. A capacity of over 1 million FFT lines is available. The user can decide on his/her own whether to use the 1 million lines for an FFT with very high resolution and less averaging or vice versa. The capacity of 1 million lines is in fact enough for most applications. For instance, FFTs can be carried out with 4096 lines and 256 times of averaging or with 65536 lines and only 16 times of averaging.

Thus the user can proceed freely as long as not exceed-ing the limit of 1 million FFT lines. If that happens, the ex-ceeded parameter is highlight-ed in yellow. By means of ar-rows, the user also receives an indication which settings should be adjusted in which direction to get back to the “valid” range. As long as the values are not acceptable, no FFT is carried out.

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Control panel: Display

This panel is divided in two sections. The left is for the Y-axis, the right for the frequen-cy axis. General operation is described at page 34.

Button Automatic scale sets frequency axis to a range, that all frequencies with magnitudes >5% of maximum mag-nitude are visible.

Control panel: Cursors

Two colored cursors are available for displaying of vi-bration values and frequen-cies numerically. Operation is described on page 35.

Control panel: Data transfer

Operation is similar to other graphical instruments. There-fore a general description can be found at page 35.

Control panel: Messengers

By means of event messen-gers, the InnoAnalyzer can automatically send periodical-ly saved data by e-mail. Event messengers are described from page 139 on and the connection with event mes-sengers is described on page 39.

InnoScope as external trigger

One task – one instrument: According to this VibroMatrix philosophy, the single instru-ments are not overburdened with functions another VibroMatrix instrument can fulfill better. For the detailed visualization of signals in the time domain, the InnoScope is available. It offers its services to the InnoAnalyzer as well and can act as a trigger source in order to carry out FFTs only if a trigger event has occurred.

The connection between both instruments is initiated in InnoScope. Further information can be found within the description of InnoScope on page 65.

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6.13. InnoAnalyzer® Speed – Measurements at run-up and coast-downThe InnoAnalyzer Speed processes the rotation speed (the tacho signal) in addition to the vibration signals. Thus, it provides function for an order analysis. From the compos-ite vibration signal, the amplitude and phase of the component corresponding to the ro-tation speed or its multiples is extracted with high precision. The diagrammatic presen-tation of both quantities allows the detection of resonances in the speed range.

In addition to components corresponding to the rotation speed, the wide-band total vi-bration state as a sum param-eter corresponding to the ro-tation speed can be displayed as well.

The rotation speed changes, e.g. during run-up of a ma-chine from near zero to the nominal speed. Alternatively, the coast-down to standstill can also be used to effect a speed change. The corre-sponding measurements are then denoted as run-up anal-ysis and coast-down analy-sis.

For machine diagnostics the vibration velocity is usually used as the predominant measurand. Resonance speeds show up as peaks of the ampli-tude in the passed through revolution frequency range and are often accompanied by a distinct phase change.

Often, an order analysis tool is based on a simple FFT. The InnoAnalyzer Speed in con-trast works with an optimized algorithm, which is computationally more efficient and leads to more exact results in a shorter time.

Up to 4 channels can be analyzed simultaneously, either taking their signals from differ-ent sensors or from the same sensor, but utilizing different processing parameters.

The signals can be displayed for the following measurands:

Vibration acceleration [m/s², mm/s², µm/s², nm/s², pm/s², g, mg, dB] Vibration velocity [m/s, mm/s, µm/s, nm/s, pm/s, in/s, dB] Vibration displacement [m, mm, µm, nm, pm, in, dB]

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Displays and controls

Current speed

The rotation speed signal is acquired by the InnoBeamer on which the first measuring channel of the InnoAnalyzer Speed is running. That is why the current rotation speed is shown in the status display for this first channel. When there is no speed signal (e.g. during standstill of the rotor) the info <no data> is displayed instead.

In the status display of all channels in contrast, the order of the analyzed signal is indi-cated. For example, 3f corresponds to the third order, meaning the signal is analyzed at three times the rotation frequency.

Control panel: Signal

The basic operation for the sections Signal input and Measuring is explained on page 33.

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Graphical displays (p.76)

Scroll axis (p.32)

Zoom axis (p.32)

Current sensor (p.40)

Current channel (p.41)

Current measurand (p.41)

Current parameter (p.41)

Current gain (p.41)

Underload (p.41)

Overload (p.41)

Current speed (p.74)

Start-/Stop button (p.31)

Add channel (p.33)

Number of active channels (p.33)

Remove channel (p.33)

Data export button (p.33)

Clone instrument (p.31)

Expand/Collapse control panel (p.31)

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The section Filter offers two options. Order analysis ex-actly measures amplitude and phase of the signal at rotation speed or it multiples and sup-presses all other signal parts. The multiple of the rotation frequency is selected under Order. The possible values are ½ of the rotation speed and the integer multiples 1..12.

The values measured at a multiple of the rotation frequency are shown on the frequency axis at the correspondingly multiplied frequency.

In order to measure total vibration state of the measurement ob-ject speed-dependently, the option Sum parameter is activated. Now a frequency band from from fmin to fmax can be set freely. As sum parameters, several peak values and also the true r.m.s. value are available in the Measuring section. Using this mea-surement mode, it is not possible to determine a clear phase val-ue, because many vibration parts with different phase values in-teract here and influence the sum parameter.

The Minimum frequency resolution indicates that two rotation speeds are considered as equal if they differ by less than this value. The rotation speed change on the measure-ment object should be adapted to the frequency resolution in such a way that some revo-lutions can be measured in each rotation speed interval.

Additionally, a minimum rotation speed can be specified (Measure from speed) which must be exceeded in order to start data acquisition.

Control panel: Display

This panel is divided in two sections. The left is for the various Y-axes, the right for the frequency axis. General operation is described at page 34.

On the one hand, the time-speed diagram can be switched on or off. On the other hand, the size of the phase dis-play can be adjusted in relation to the size of the amplitude display. For the ratio be-tween phase and amplitude display the values 0%, 33%, 66% and 100% can be chosen. The control elements for the Y axes act only on the diagram, which currently constitutes the main display (phase or amplitude). The corresponding display is specified in the head line for the Y axes.

Control panel: Cursors

Two colored cursors are available for displaying the measured values and frequencies numerically. General operation is described at page 35.

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The InnoAnalyzer Speed pro-vides the phase value at the cursor position in addition to the amplitude. Furthermore, the time is given, at which the rotation speed at the cursor position has first been reached.

Control panel: Data transfer

Operation is similar to other graphical instruments. There-fore a general description can be found at page 35.

Graphical display

The displayed data in the filter mode Order analysis (p. 74) in-cludes Amplitude and Phase of the measurand at the correspond-ing rotation frequencies, as well as a Time-speed diagram. The relative ratio of the sizes of the amplitude and phase display can be changed in the panel Display. Zoom buttons only occur at the axes of the display, which is se-lected as the main one.

Since phase is defined only up to multiples of 360°, it is not unique and can be shown in dif-ferent ways. In order to provide a flexible display each phase axis can be switched between three modes:

1. All displayed phases fall between -180° and 180°.

2. All displayed phases fall between 0° and 360°

3. The phase is continued in such a way, that no jumps larger than 180° occur between neighboring display points.

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Phase diagram

Amplitude diagr.

Time-speed diagram

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You can switch between these display modes by clicking with the right mouse button on the desired phase axis. The modes are switched through cyclically. In this way, apparent phase jumps, which only result from the representation, can be easily identified.

The Time-speed diagram shows the time evolution of the measured rotary frequency. Time is counted from switch-on of the instrument.

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6.14. InnoBalancer® – Field balancing

OverviewInnoBalancer is a convenient instrument to reduce vibrations. In many cases, rotors can be balanced directly in installed state. So you save the complex dismantling and the transport of the rotor to a balancing machine. Often an acceptable performance can only be achieved by balancing the installed rotor with all parts mounted.

Important preconditions for successful field balancing are:

The rotor must be able to run with a constant rotation speed with the available drive. The rotor must be accessible for attaching calibration weights. The rotor must have a defined standing position (e.g. mounted on foundation).

InnoBalancer supports Single-Plane-Balancing as well as Two-Plane-Balancing. By giving off-sets, the unbalance can not only be corrected but the rotor can be balanced according to achieve a certain unbalance as well.

InnoBalancer guides the user by clear text messages. The auto recognition of stable ro-tation speed enables InnoBalancer to distinguish between the different balancing runs and reduces the operator input to a minimum.

Measurement results and balance information are displayed numerically as well as in a polar chart. A tolerance can be preset for the pass-fail-recognition. Correction instruc-tions are directly displayed at the balancing position in the graphic. Many parameters can be changed after measuring without the need to measure again. The results are sim-ply calculated anew.

The InnoBalancer provides up to 7 correction methods. If correction cannot take place at arbitrary angles, fixed positions can be defined. The proposed correctional measures are restricted to the given angle positions, in this case.

With the push of a button a report is printed. A report template is built-in, further tem-plates can be designed by the user.

Rotor configurations can be saved and used again for measurements with other rotors of the same type.

More background information concerning balancing and practical examples can be found in a separate document ''Balancing with VibroMatrix''.

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Displays and controls

An overview of a measuring run

Balancing procedure consists of several runs. Every run proceeds as follows. After clicking button Start automatic speed recognition is started. InnoBalancer waits now for signals of photoelectric reflex switch and recognizes if a stable speed is reached. Parameters for speed recognition are configurable (page 81). Measurement of a vibra-tion vector takes place at constant speed. After measurement InnoBalancer's user guide signals that rotation may be stopped. Finish of a run is automatically recognized at standstill. A finish can be marked by user as well through clicking the Stop button.

If something went wrong during the finished run, button Back can be used to switch back and repeat the run. If all runs shall be rejected, button Reset initiates a new bal-ancing procedure.

User guidance

InnoBalancer guides the user through the entire balancing process. Each balancing run is displayed together with clear instructions about the necessary steps to be done. Dur-ing the measurement, InnoBalancer indicates rotation speed, rotation speed stability and measurement progress.

Switch one run back

By clicking button Back the balancing procedure can be switched one run back. A rea-son to use this button could be for example a forgotten calibration weight. Thus only one run can be repeated without resetting the entire balancing procedure.

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User guidance (p.79)

1 run back (p.79)

Reset of balancing procedure (p.80)

Amount and angle of unbalance (p.80)

Position display (p.80)

Polar chart (p.80)

Detailed information / error messages (p.80)

Current gain (p.41)

Underload (p.41)

Overload (p.41)

Start-/Stop button (p.31)

Clone instrument (p.31)

Expand/collapse control panel (p.31)

Current sensor (p.40)

Current channel (p.41)

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Reset

Button Reset resets the InnoBalancer. All measurement results are deleted. Now a new object can be balanced.

Amount and angle of an unbalance

When all runs necessary for unbalance calculation are finished this field indicates amount and angle of the unbalance. The time before as well as during a measurement, amount and angle of the vibration vector are indicated here.

Angles given in InnoBalancer are always measured against the rotary direction of the rotor.

Position display

A decisive parameter for balancing is the angle position of un-balance and correction. In some cases several positions are of in-terest at the same time. If so, the position can be selected in the position display above the polar chart.

Use the buttons and to navigate through the different positions. Information concerning the selected position is displayed between the two buttons.

Polar chartThe polar chart is the graphic display of un-balances, correction and fixed positions. Different marks and colors ease the orienta-tion. The scale on the measured unbalance indicates the difference between tolerated and measured unbalance. Correction instructions are directly indicated in the polar chart.

If more place for displaying the correction instructions is required, the button More in-formation is activated.

Display more informationAdditional information such as the measured vectors or detailed instructions for correc-tion are displayed in a separate window. If such information is available, a button below the polar chart is activated. If additional information is available, button has the caption More Information. If errors occurred the button shows Error! More Info.

Errors occur if

the calculation of correction methods failed due to implausible input values or in spite of correction methods no sufficient balancing result could be achieved.

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Fixed position without correction data, not selected

Fixed position with correction data, not selected

Tolerance circle

Unbalance vector

Fixed position without correction data, selected

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A click on the on the button opens the information window as a layer above the polar chart. The button changes its name into Show chart and can minimize that window again.

Control panel: Rotor listThe rotor list is available for InnoBal-ancer Pro only. A rotor data set con-tains all information needed for bal-ancing of a special rotor. This infor-mation can be saved and reloaded again later. A rotor data set saves time especially for repeated balance tasks. Additionally measured values of the different balancing runs can be saved and loaded again. This function applies for instance if a balance procedure lasts several days and temporary values must be saved. Calibration data can be reused as well.

Reuse of measurement values is only valid if the following runs take place under the same circumstances (standing position, rotation speed etc.).

Reload of rotor data is only possible if the InnoBalancer is switched off.

Control panel: SignalThe selection of the signal source dif-fers from other VibroMatrix instru-ments. The channels are not freely se-lectable. Depending on the selected measuring channel the other channel of the InnoBeamer is automatically chosen as the complementary channel. Channels from different InnoBeamer devices cannot be mixed.

Signal source Selection of measuring channel Gain Gain selection for the respective channel Vibration measurand Vibration acceleration, velocity or displacement Unit Unit of the measurand

Control panel: MeasuringThe adjustments made here will influence the balancing course. Balance method de-fines whether static or dynamic balancing is used. Measurement of static unbalance

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takes place in one plane only. In this mode the settings and display func-tions for the second plane will be in-visible. Measuring of dynamic unbal-ance requires 2 planes. The control elements and displays of both planes are accessible.

Quantity and Unit are selectable for inputs and results. An unbalance is described either as the product of mass and radius (units milligram·millimeter – mgmm, gram·millimeter – gmm and gram·meter – gm) or as a mass referring to the balancing radius (units mg, g or kg). Changing quantity and/or unit will not change the values of the input fields. But the results are recalculated.

Unbalance measurement must be carried out at a constant rotation speed. Only when the Min. running smooth was reached and kept for a certain Min. running smooth time after a run-up, the measurement is started.

The number of Revolutions determines the measurement accuracy. A value which is too high will make the measurement slower than necessary. A value that is too low is harmful to the accuracy.

Message on final unbal. of [%]: Some balancing methods do not come up to complete correction. This applies for instance to balancing where a limited number of positions (fixed positions) is available and only a limited set of counterweight is used. In this case not all corrections can be calculated exactly and a final unbalance remains. The final unbalance can be ignored if it is sufficiently low. The user can specify from which final unbalance on a message is required. Below the stated percentage of the measured unbal-ance no error message will be displayed.

Control panel: Rotor

This menu defines the rotor proper-ties. All settings can be changed after the balancing process. The new set-tings will then be used for the auto-matic recalculation of correction mea-sures.

The radius determines the balancing radius, which is the radial distance between the center line of the shaft (rota-tion axis in most cases) and the circumference where the correction mass is attached.

If not every angle location at the rotor circumference can be used for correction, for instance in the case of fan blades, fixed positions are defined. At the moment, only equally distributed fixed positions are included in calcu-lation. If fixed positions are to be taken into calculation, enter a number of Fixed positions (values from 3 on are

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valid). Additionally an offset angle for the First fixed position can be defined if the first position is not located at zero angle.

Tolerance is used for the pass-/fail-recognition. It also adapts the radius of the toler-ance circle in the polar chart.

Density is only necessary for removing correction methods like drilling (p. 85) and milling (p. 85).

Control panel: Calibration

Calibration runs are necessary to es-tablish a relation between the mea-sured vibration signal and the unbal-ance. Thus the InnoBalancer needs to know where and how much calibra-tion mass was attached to the rotor surface. The radial distance between the correction mass and the center line of the rotor must correspond to the radius adjustment made in the rotor settings (page 82).

Calibration mass Mass of calibration weight Angle Position of the calibration mass. It is recommended using 0° as

the calibration angle, then all angles are based on the position of the calibration weight.

Fixed position no. If fixed positions are defined they are used to position the cali-bration mass. The angle will be calculated automatically and can not be entered directly.

Control panel: OffsetsSometimes the unbalance is not to be compensated to zero but to a defined value. That is the case for instance when additional components have to be attached to the rotor after the bal-ancing process. They will generate an unbalance which the InnoBalancer will consider. After the component is attached, the actual unbalance of the rotor will really become (nearly) zero then.

Such later added components are treated as Offsets by the InnoBalancer. Any number of offsets can be added to a list with individual names. Required parameters are the Amount and Angle of the offsets. By the checkbox Include offset in result the user can choose whether offsets are considered or ignored during the balancing calculation.

Adding a new offset

Enter a new name into the offset list and click on the + button.

Enter the Amount and the Angle of the offset and activate the checkbox Include off-sets in result.

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Deleting an offset

Select the name of the offset to be deleted.

Click on the – button.

Control panel: Correction

Up to 7 methods are available for un-balance correction. The settings for these methods can be selected by the tabs at the lower edge of the correc-tion settings window. Each menu pro-vides one or more input fields for the parametrization.

The setting of correction method and the display of balancing results are synchronous. The displayed balancing corrections in the polar chart are always based on the currently selected method.

When fixed positions are used you can select whether all fixed positions are to be treat-ed by the same method or separately (only in the Pro version). In the second case the in-put work can be reduced by transferring data from one menu to another using the Copy/Insert function.

If Different correction of fixed positions is selected, each position is saved with its own method and all belonging parameters. Selecting another fixed position in the posi-tion display (page 80) changes the correction method including all parameters as well.

The different corrections allow to mix correction methods or individual adjustment of correction parameters for each fixed position. Thus difficult tasks can be solved without auxiliary calculation or long trying.

Usually only new rotors have equal fixed positions. When a rotor has already been bal-anced before, each balancing process possibly left traces, for instance, in the form of drills. With mixed correction methods it is possible, to allow e.g. for only one drilling in positions already drilled while other positions can be allowed to have three drillings.

InnoBalancer can consider such individual tasks and will find a quick and uncomplicat-ed solution for you.

Control panel: Unbalance correction by adding counterweights

A correction can be achieved by attaching a counterweight opposite to the unbalance position. This is a very common method. You can specify the maximum mass. If the calcu-lated counterweight should exceed this limit, a message will inform you about the remaining unbalance (page 80).

Control panel: Unbalance correction by removing mass

Removing mass at the position of the unbalance is another correction mode. You can specify the maximum mass. If the calculated counterweight should exceed this limit, a message will inform you about the remaining unbalance (page 80).

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Control panel: Unbalance correction by drilling

Drilling belongs to the removing correction methods. It is car-ried out at the unbalance position. The calculation is carried out for radial drilling. For each position the Maximum drill holes can be chosen. If one drill hole is not sufficient, up to three drill holes are allowed in the longitudinal axis. InnoBal-ancer optimizes the calculation to a minimum number of drill holes. For example if 3 drill holes are allowed, but only one is necessary for correction, InnoBalancer will recommend only one.

Further characterizing parameters of a drilling are the Maximum drill hole depth, the Drill diameter and the Drill bit angle. Based on these parameters InnoBalancer calcu-lates the required drill depth and the angle position of the drilling.

The density of the rotor material defined in the rotor settings (page 82) also influences the drilling calculation.

If the calculated drill holes should not yield full compensation, a message will inform you about the remaining unbalance (page 80).

Control panel: Unbalance correction by milling

Milling is another removing correction method. Therefore it is also carried out at the position of unbalance.

Characterizing parameters of a milling are the Maximum milling depth and the Milling cutter diameter. Based on these parameters InnoBalancer calculates the required milling depth and the angle position of the milling.

The density of the rotor material defined in the rotor settings (page 82) also influences the milling calculation.

If the calculated milling does not yield full compensation, a message will inform you about the remaining unbalance (page 80).

Control panel: Unbalance correction by balancing rings and sliding blocks

Balancing rings or sliding blocks are weights with a specific unbalance and are attached to the rotor in pairs. Before mea-suring the initial unbalance, they are brought into a neutral position by placing them with their unbalance 180° opposite to each other. After having calculated the unbalance, In-noBalancer indicates the necessary position for the rings/slid-ing blocks. This balancing method is especially convenient for weights with freely adjustable angle position because there is one fix parameter - the unbalance of the balancing rings/sliding blocks.

The InnoBalancer can also calculate the correction if balancing rings/sliding blocks are combined with fixed positions. It is assumed that the rings can be positioned with their unbalance mass in particular angles – fixed positions – only.

The maximum effect is obtained if both rings/sliding blocks are attached at the same po-sition opposite to the unbalance position. If even this arrangement does not yield full compensation, a message will inform you about the remaining unbalance (page 80).

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Control panel: Unbalance correction by set screws

In principle, set screws are weights which can be adjusted in the direction of the rotor radius. They are usually related to fixed positions.

Before balancing the screws are set in a neutral position, i.e. all screws have the same radial distance. This should be a po-sition on the outer radius of the rotor since based on Screw mass and Maximum adjustable screw depth, InnoBal-ancer calculates the necessary screw depths towards the center. Thereby, the unbalance is reduced or compensated.

The maximum effect is obtained if all screws within the angle ±90° from the unbalance position are screwed in completely. If even this arrangement should not yield full com-pensation, a message will inform you about the remaining unbalance (page 80).

Control panel: Unbalance correction by counterweight list

The counterweight list is an upgrading of the correction by counterweight. Often it is not possible to have every size of counterweights available. That is why it is more efficient to have a set of graduated prefabricated counterweights in store. The task of InnoBalancer now is to find the best combination of counterweights.

The software also takes into account the part that holds the counterweights (usually a screw). The available length for the attachment of additional masses is also considered: InnoBalancer only combines counterweights that can be mounted with one screw.

With a limited set of counterweights, an optimal correction result can not always be achieved. The residual unbalance is kept low if the rotor has many fixed positions and the available counterweights are finely graded. A good model is the Euro coin and ban-knote system with its always recurring gradations 1, 2, 5. For instance counterweights of … 1, 2, 5, 10, 20, 50 … gr. could be prefabricated and defined.

A minimum residual unbalance is not relevant for the correction result and should not be indicated as an error. Therefore a value can be defined from which on an error mes-sage is to shown (page 81).

Adding a new counterweight

Enter a new name into the counterweight list and click on +.

Type in Mass and Length of the counterweight. Activate the Used for mounting checkbox if the counterweight is to be used for mounting. Only one item per list can be selected for mounting.

Deleting a counterweight from the list

Select the counterweight to be deleted.

Click on button –.

Immediately after these changes a recalculation is carried out. In some cases InnoBal-ancer may suggest an overcompensation if this will provide a lower residual unbalance. Example: The result is 29.5 gr. The lightest counterweight has a mass of 5 gr. There

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would be 2 possibilities: 25 gr. or 30 gr. InnoBalancer will decide in favor of 30 gr. be-cause of the lower residual unbalance.

How InnoBalancer calculates and optimizes the correction

After measuring the unbalance InnoBalancer immediately calculates the compensation measures. You can choose between 7 methods of correction (page 84). The procedure is as follows:

InnoBalancer checks the acceptability of the selected correction parameters. The maximum drill depth, for instance, must not exceed the rotor radius. When invalid re-sults are detected the user will be informed. Therefore the button for additional infor-mation will be activated (page 80).

The next steps depend on whether any point on the rotor surface is available for cor-rection or fixed positions are defined. In any case InnoBalancer will check if the max-imum possible correction will actually eliminate the unbalance. If the unbalance is too high for correction despite the use of the maximum correction methods, the but-ton for additional information will be activated (page 80).

Free correction positions

Characteristics

There are less than 3 fixed positions.

InnoBalancer will calculate an unbalance correction at a free angle position.

Fixed positions with equal correction

Characteristics

There are more than 2 fixed positions. Different correction of fixed positions is deactivated in the Correction panel (page

84).

For infinitely variable correction methods (counterweight, drilling, milling, setscrews) InnoBalancer optimizes correction so that as few positions as possible are used for cor-rection.

The methods balancing rings and counterweight list do not allow infinitely variable cor-rection. InnoBalancer compensates the unbalance as well as possible under the condi-tion that the residual unbalance remains below the defined limit (page 81).

Fixed positions with different correction

Characteristics

Available in Pro Version only. There are more than 2 fixed positions. Different correction of fixed positions is activated (page 84).

When different correction methods are selected for fixed positions each method is ap-plied in a defined order. InnoBalancer starts with methods providing quick compensa-tion. Admittedly these are the methods that are not infinitely variable.

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1. Balancing rings fast but relatively coarse correction 2. Counterweight list3. Set screws4. Drilling5. Milling6. Removed mass7. Counterweight fine, but relatively drawn-out correction

A correction method is only applied if a fixed position using this method lies within ±90° right and left from the unbalance.

The optimization of the correction methods works as explained above:

For infinitely variable correction methods InnoBalancer optimizes the correction in order to use as few fixed positions as possible.

For other correction methods InnoBalancer optimizes the correction in order to mini-mize the residual unbalance.

Control panel: Report

Thanks to the report function, you can easily print significant balancing re-ports in order to document the results of your work. You are free to create a report according to your requirements. Company address, company logo, graphics for the rotor – everything can be integrated in such report. A tem-plate for a report is built-in. If a different report is required, simply create a new one as explained on page 37.

Apart from fixed texts, e.g. for headline or service address, and pictures, a report also contains variables which always take on the values currently in effect in the InnoBal-ancer. The available variable of the InnoBalancer are:

Sensor name for plane A and B Signal source for plane A and B Rotor name Minimum running smooth Minimum running smooth time Revolutions for measuring Tolerated unbalance for plane A and B Rotor radius for plane A and B Density for plane A and B Equally spaced fixed positions for plane A and B (currently always "yes") Number of fixed positions for plane A and B Starting angle of fixed positions for plane A and B Calibration mass for plane A and B Calibration angle for plane A and B Fixed position number for plane A and B Unbalance before correction for plane A and B Unbalance after correction for plane A and B Good/bad (in tolerance) before correction for plane A and B

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Good/bad (in tolerance) after correction for plane A and B Unbalance reduction in % for plane A and B Printing time Printing date Program version Polar diagram with unbalance before correction for plane A and B Polar diagram with unbalance after correction for plane A and B

Printing a report

For printing, just select one of your configured reports from the list, set up the required printer and click on Print report.

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6.15. InnoMeter® HVM 2631:1997 – Human whole-body vibration measurement

OverviewThe exposure of humans to high vibrations to humans can negatively affect perfor-mance and productivity and may even cause diseases of, e.g., blood vessels, nerves, bones, joints, muscles or connective tissues. Therefore, several regulations – for in-stance directive 2002-44-EC – demand measurements of vibrational exposure according to EN ISO 2631, which assesses the vibrational impact on human beings.

By using the InnoMeter HVM 2631:1997, one can easily perform these standards con-forming measurements. Additionally, the instrument contains a storage for recent mea-surement results, it provides the complete final evaluation and allows to archive the re-sults. The integrated guidance system helps users to fully benefit from the wealth of functions and to reliably carry out the measurements, without requiring detailed knowl-edge of the standard. Three panels lead you to a successful assessment:

1. In the panel Measurement mode the measurement is prepared. The measure-ment mode is simply chosen from a list. The necessary parameters for a con-forming measurement are then already fixed by the program. A few parameters can be varied, e.g. the duration. Furthermore, as a convenience function, the sen-sor automatic can be activated here.

2. The actual measurement is performed using the panel Measurement. Apart from measuring the main characteristic values, some additional values are also determined. This is demanded by the standard, but seldom respected by measur-ing devices. The measured values are automatically copied into the Data storage.

3. The panel Data storage contains the measurement results in a concise way. A standards conforming assessment (good/bad/acceptable) is immediately avail-able and displayed by a colored background. Furthermore, the measurements can be amended with your own remarks, managed, exported and imported. At the push of a button a whole report is generated.

The InnoMeter HVM 2631:1997 supports measurements according to

EN ISO 2631-1:1997 (whole-body vibration) EN ISO 2631-2:2003 (vibration in buildings) EN ISO 2631-4:2001 (vibration in fixed guideway transport systems)

Excluded are measurements to assess motion sickness or which incorporate rotational vibrations.

In most cases, the standard demands simultaneous measurements in all three spatial axes. The InnoMeter HVM 2631:1997 therefore has three channels.

The characteristic values displayed per channel are

the RMS value [m/s²] the crest factor the maximum transient vibration value (MTVV) [m/s²]

of the frequency weighted vibrational acceleration. The frequency weighting is per-formed with a high-precision filter, which exactly reproduces the transfer function as demanded by the standard. The weighing filters Wb, Wc, Wd, Wj, Wk, Wm, and also

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unweighted (only band limited) measurements are available. The appropriate filter is se-lected automatically through the selection of the measurement mode.

Preparing the measurementIn the panel Measurement mode the measurement is prepared. This panel allows to

choose the measurement mode, adjust the free parameters of the measurement (e.g., the duration), activate the sensor automatic, if required, configure report templates, if required.

Selection tree

The configuration and measurement modes are arranged in a hierarchical tree-like struc-ture. The hierarchy of the measurement modes contains

the relevant standard, the assessment criterion,

the body posture and the location of the sensor.

To navigate within this tree, sub-trees can be opened or closed. A + sign at the left side signifies that a node of this tree has sub-nodes. They can opened (the sub-tree becomes visible) by clicking on this + sign or by a double click on the node itself. The sub-tree can be closed again by clicking on the – sign or a double click on the node.

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Selection tree (p.91)

User guidance (p.92)

Chosen standard (p.92)

Chosen measurement mode (p.92)

Details of mode (p.92)

Open choice tree (p.91)

Set duration (p.92)

Set ISO default value (p.92)

MTVV integration time (p.92)

Exposure duration (p.92)

Close choice tree (p.91)

Clone instrument (p.31)

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A click on the button Show all measurement modes opens the entire tree structure. In contrast, clicking on Show only standards closes the tree structure (nearly) entire-ly.

The deepest nodes of the tree (the „leaves“) represent the standardized measurement modes. The corresponding measurement mode is chosen by clicking on such a node. A parenthesized number on the right hand side of the node gives the number of such mea-surements, which are currently in the data storage.

User guidance

A textual user guidance system provides support by pointing out possible actions. Guid-ing texts are always displayed in blue lettering.

Measurement mode selection

The measurements according to EN ISO 2631-1:1997 (whole-body vibration) allow the assessment with respect to health, comfort or perception for sitting, standing and recum-bent body posture. The possible locations of the sensor are given by the standard. The weighting filters Wc, Wd, Wj und Wk, as well as the appropriate k-factors are automati-cally adjusted. An unweighted measurement (only band-limited) is possible, too. The standard considers this as an additional measurement in case of perception assessment. This unweighted measurement is also required for calibration purposes.

The standard EN ISO 2631-2:2003 (vibration in buildings) only considers measure-ments with undefined body posture, which are to be performed on the floor with weighting filter Wm in all three directions. In the case of a given body postures, it is recommended that the measurements are performed according to EN ISO 2631-1:1997.

Measurements according to EN ISO 2631-4:2001 (vibration in fixed guideway transport systems) correspond to those of EN ISO 2631-1:1997, with the single difference, that the weighing filter Wk is to be replaced by Wb.

Adjust parameters

Some parameters are not strictly fixed by the standard, as the case may be. They can be adjusted to the current requirements.

The most important of these parameters is the scheduled Measurement duration. EN ISO 2631-1:1997 specifies that a measurement should not be shorter than a certain min-imal duration, in order to achieve a given accuracy. The recommended minimal dura-tion depends on the relevant frequency range, and thus depends on the measurement mode. Clicking on the button ISO sets this recommended minimal duration (mostly 227 seconds). A larger duration may be necessary in order to obtain a representative assess-ment of the vibrational exposure. Therefore, the measurement duration can be adjusted freely in steps of one second.

Assessing the health impact of vibrations requires the knowledge of the daily duration of the vibrational exposition (with the measured values). This durations must be entered in the field Daily exposure duration.

A further parameter is the Integration time for running RMS, which is used in the de-termination of the MTVV. Usual values are 1 or 1/8 seconds. The standard does not fix this value, but it requires that the used value is recorded in the measurement protocol, if

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MTVV is measured and recorded. The associated button ISO sets the recommended time constant (1/8 s for vibration in buildings, 1 s otherwise).

Sensor configuration

The Sensor automatic of the InnoMeter HVM 2631:1997 significantly alleviates the problem of correctly assigning the axes as required by the standard. The problem is due to the fact that there are two different coordinate systems to be considered, the system used in the standard, which is related to the human body and another system, which is given by the fixed sensor axes of a triaxial sensor. In certain situations, these coordinate systems do not coincide, which is a serious cause for errors. The Sensor automatic safeguards against these errors. See for yourself: The next two pictures demonstrate the operation of this automatic in the example of a recumbent body posture.

The view Total view (left picture) shows the spatial orientation of the measuring axes as given by the standard. These axes are related to the human body (e.g. the Z-axis is oriented in the direction to the head). The orange circle beneath the lying person indi-cates the location of the sensor as related to the body for the corresponding measure-ment (here: sensor under the pelvis). On the other hand, the view Sensor position shows the axes of a triaxial sensor in a seat accelerometer, where the direction of the Z-axis is usually perpendicular to the plane of the pad. Therefore, the Z-axis of the sensor is directed along the X-axis according to the standard. Significant measurement errors result, if this difference is not observed.

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The Sensor auto-matic of the In-noMeter HVM 2631:1997 prevents these kinds of errors, since the instrument adjusts to these cases and automatically assigns the axes cor-rectly. Just activate the Sensor auto-matic and position the sensor in accord with the diagram in the software – then you elegantly avoid this obstacle, where users with other measurement equip-ment often fail.

If the Sensor Auto-matic in the InnoMe-ter HVM 2631:1997 is inactive, the assignment of the axes is effected as in the other instruments of the Vi-broMatrix series. For each axis a measurement channel is chosen as signal source in the Measurement panel. This choice is not possible if the Sensor automatic is active, since the assignment is done automatically by the InnoMeter HVM 2631:1997, as already ex-plained.

If the same sensor is assigned to several axes, the corre-sponding fields are shown with a yellow background, in order to warn of this error.

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Report configuration

Thanks to the report function, you can easily print mea-surement reports in order to document the results of your work. You are free to create a report according to your requirements. Com-pany address, com-pany logo – every-thing can be inte-grated in such a re-port. The general generation and adaptation of a re-port template is de-scribed on page 37. The report tem-plates are saved to-gether with a workspace.

This panel also allows to choose the printer, onto which the report is to be sent. At start-up, the standard printer is preset.

The actual printing is carried out at the push of a button than.

Performing the measurementThe panel Measurement serves for conducting the measurement proper. Basically, a measurement consists of the following steps

assignment of the measuring channels/sensors, placing the sensors, conducting the measurement for the preset duration, storing the measurement results and their assessment.

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Display of the current measurement modeFor the sake of clarity and to avoid erroneous operation the currently chosen measure-ment mode is displayed in short form as a header line. The standards conforming weighting factors (k-factors) of the different axes are also shown there. These factors are already accounted for in the display of the measurement values. In this way the rela-tive contribution of the different axes to the total value is readily observable. A domi-nant axis can easily be recognized.

Signal inputThe button Settings >> opens the panel for the signal set-tings.

Here, the spatial axes can be configured for the measurement. For easy overview, each axis is uniquely distinguished by a color. The measuring channel for each axis can be chosen from a list which contains all channels available for the InnoMeter HVM2631:1997.

In order to avoid the accidental selection of two equal channels, a yellow warning is given in this case.

The gain settings allows to select the appropriate measuring range (p.31). The overload and underload indicators give helpful information in order to find the correct gain set-ting (p.41).

As a help for new users, a hint is shown in an un-configured instrument, pointing out the sensor automatic (p.93).

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Expand/collapse signal input panel (p.96)

Axis value windows X,Y,Z (p.97)

Axis assignment (p.97)

Switch sensor details (p.97)

Vibration total value (p.98)

Remaining duration (p.98)

Elapsed duration (p.98)

User guidance (p.99)

Start/stop button (p.31)

Current mode (p.96)

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Sensor position

For a measurement conforming to the standard, a correct axis assignment of the sensor must be carried out. A diagram shows the axis assignments as given by the standard and provides a pictorial help for a correct placement of the sensors.

If the sensor automatic (p. 93) is enabled, which is especially advantageous for the uti-lization of triaxial sensors, two buttons appear, Total view and Sensor position, which allow to switch between two views.

The view Total view shows the spatial orientation of the axes, as given by the standard. The same diagram is also shown with deactivated sensor automatic. The view Sensor position shows the axes of a triaxial sensor of a seat accelerometer, where the direction perpendicular to the seat is assumed to be the z-axis. Using the sensor automatic, the as-signment of the sensors to the axes of the seat accelerometer can be fixed. Placing the sensor/accelerometer according to the diagram Sensor position will then automatically utilize the standards conforming axes assignment (p.93).

Axis value window

The axis value windows display for each axis the currently measured value, as well as status informations. The main measured value is the RMS value of the frequency weighted vibrational acceleration. The displayed value already includes the k-factor for the axis.

An important part of the status information is the assignment of the measurement chan-nels, since these have to be done as defined in the standard. The colored display of the measured values eases the fast correlation. When fewer than three channels are used in a measurement, the inactive axis value windows are displayed in gray.

The overload and underload indicators give important status information during a mea-surement. They ascertain the correct measuring range and are of help in avoiding mea-suring errors and inaccuracies. Therefore, these indicators are required by the standard. Further informations can be found at the given page references.

Measured parameters

Interval RMS valueThe most important characteristic value for the assessment of vibrational exposition ac-cording to EN ISO 2631:1997 is the RMS value of the frequency weighted vibrational acceleration. This value is displayed in the axis value window in the color of the respec-tive axis.

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Current channel (p.41)

Current gain (p.41)

Underload (p.41)

Overload (p.41)

MTVV (p.97)

Current sensor (p.40)

Measured value (p.97)

Current parameter (p.41)

Current measurand (p.41)

Weighting curve (p.92)VDV (p.97)

Weighting factor (p.92)Crest factor (p.97)

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Crest factor and MTVVThe standard provides for the possibility, that signal forms occur, whose effects cannot be adequately characterized by the frequency weighted RMS value alone. It recom-mends to monitor the signal form, in order to detect such situations. To this end, the In-noMeter HVM 2631:1997 measures two additional parameters of the signal, the crest factor and the maximum transient vibration value (MTVV).

If these parameters exceed certain ranges, the standard EN ISO 2631-1:1997 recom-mends to note this situation and record the additional parameters in the measurement protocol. In such a case, the respective parameter field is shown in yellow in the axis value window.

VDVIn few countries, for instance Great Britain, instead of or additional to the interval RMS value, the Vibration Dose Value (VDV) is measured. So this value is indicated in the axis value window for each axis as well.

Similar to monitoring the signal form for the interval RMS value by means of crest fac-tor and MTVV, VDV measurement also allows signal form monitoring conforming with the standard. A yellow background of the VDV signals that the signal form ex-ceeds the permissible range. In this case, the standard EN ISO 2631-1: 1997 recom-mends to note this situation.

Vibration total valueThe frequency weighted RMS values of the acceleration of all measured axes are com-bined to form the vibration total value. The InnoMeter HVM 2631:1997 always dis-plays the current value of this quantity, without requiring a separate calculation of it.

The method used for the determination of the vibration total value depends on the se-lected assessment. The applicable quantity in each case is shown above the total value display (e.g., maximum or vector sum), for information, and is also automatically acti-vated.

The display of the vibration total value is shown in color for weighted measurements. To this end, the total value is compared with limiting values as given (informally) by the standard. The meaning is:

green: good/no risk yellow: acceptable/low risk red: bad/serious risk

For comfort/perception assessment the vector sum of the weighted axis values is used. For health assessment the energy equivalent dose value is (internally) calculated from the maximum of the weighted axis values and the daily exposure duration. This value is then compared to the limiting values. The result of the health assessment therefore de-pends on the selected value for Daily exposure duration in the panel Measurement mode.

Time displays

Two time displays show the remaining and the elapsed measurement time. When the preset duration has elapsed, the measurement is stopped and the measuring value dis-plays are frozen. The measuring values are automatically transferred to the data storage.

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The automatic transfer to the data storage is also done if a measurement is stopped earli-er. However, in this case the button Erase measurement appears, allowing to cancel the transfer.

User guidance

A textual user guidance helps the user to easily and successfully perform the measure-ment by indicating the next appropriate step. The text field may also show short warn-ings (e.g. if the measurement duration is too short, or if limit values are exceeded).

Data storageThe panel Data storage is designed to

amend measurements with individual remarks, show detailed information for each measurement, manage the storage (erase, write, read data), export the data for further processing in word processors or spreadsheets, print reports.

Table of measurements

This table contains all stored measurement results (up to a maximum of 100000 mea-surements). The most important values are displayed immediately in the table.

The second column shows an exclamation mark on a yellow background as a Warning, if the measuring duration or the signal form do not agree with the requirements of the standard. For instance, this may be the case if the signal contains heavy shocks. In this

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Table of measurements (p.99)

Assessment (p.98)

Warning (p.99)

Marked measurement (p.100)

Switch for file name (p.101)

File name (p.101)

File format (p.101)

Save measurements (p.101)

Load measurements (p.101)

Erase one measurement (p.100)

Erase all measurements (p.100)

Hints and warnings (p.100)

Details of measurement (p.100)

Measurement mode (p.100)

Remarks (p.100)

Select report template (p.101)

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case the measured vibration total value (which ultimately corresponds to an energy equivalent mean value) does not adequately describe the hazard and exposure caused by the vibration. Such anomalous situations are automatically detected (through MTVV and crest factor examination) and reported.

A single measurements can be selected in the table by clicking on it with the mouse. The selected measurement is marked by a black frame.

The label given for the measurement mode (first column of the table) is composed of

1. a running number,2. the (fixed) description of the measurement mode and3. the (user-defined, i.e. variable) first line from the field Your remarks.

The running number changes if measurements are erased from the table. At all times, it is a continuous numbering of all measurements in the table. In order to uniquely label a measurement, it may be convenient to enter a short description as the first line of the re-marks. This is, of course, not mandatory, since the measurements are always distin-guishable by their date and time, which is automatically recorded.

When data file is read in, the new data is appended to the end of the table. All previous data is kept. The data storage can contain up to 100000 measurements.

The possibility to read in separate data files may be especially advantageous, if several measurements, which were performed at different times and/or at different places, are to be combined into a single evaluation.

Marked measurement

For the (selected) marked measurement detailed information is provided. The display includes:

the measurement mode, time and date of the measurement, parameters of the measurement, a verbal assessment, additional measuring values, which are not given in the main table

It is possible to add Remarks to the measurement. These are saved together with the measuring values. In order to ease data management, the first line of the remark is ap-pended to the measurement mode in the first column of the Table of measurements. This can be used to characterize the measurements by, e.g., the measuring location.

If there is a warning (i.e., if there is an exclamation mark in the seconds column of the main table), a short characterization of it is shown in the field for Hints and warnings. Furthermore, the fields (parameters or measured values) relevant for the warning are shown with a yellow background (e.g. the duration in the example above).

Erasure of measurementsWith the buttons Erase marked measurement and Erase all measurements a sin-gle measurement can be erased or the entire data storage be cleared, respectively. Please note that this cannot be revoked and the data is irreversibly lost.

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Write and read data files

The data storage can be exported in two file formats, as a text file or in CSV format (comma separated values). The text file is, e.g., suited for inclusion in a protocol, which is to be printed. On the other hand, the CSV format contains the data in a tabular ar-rangement. This format is suitable for importing into a spreadsheet.

Furthermore, it is possible to read data files, which have previously been saved in CSV format, into the InnoMeter HVM2631:1997. Thereby one may list up and record related measurements together, even if they are performed at different times. A click on the button Read data file opens a window to select the file to read.

The file name to be used when writing data to disc can immediately be entered into the field Name. The button (...) allows the selection of the directory to be used. Place hold-ers for variables (p.36) can be used in the file name. If no file name extension is provid-ed, the default one (.txt or .csv) will be used.

If the switch Create standard file name is activated, a default name will be generated from the current date and time.

Printing a report

Simply click with the right mouse button on an entry in the table of measurements. A context menu appears which has the entry Print report. Clicking on this entry starts the printing process. It uses the report template which is currently selected in the list Use report. The configuration of report templates is explained on page 95.

Evaluation with exposure segmentsIf the daily vibration exposure of a person consists of different activities, two methods lead to an evaluation of the daily vibration exposure:

1. The measurement incl. all exposure segments is carried out all day long.

2. Each exposure segment is measured for the required minimum duration and the daily vibration exposure is calculated with the single exposure segments.

Both methods are supported by the InnoMeter HVM 2631:1997. The settlement of ex-posure segments conforming to the standard has to be carried out acc. to a calculation scheme of DIN ISO 2631. This calculation scheme is included in the evaluation panel, so that no further tools are required.

The procedure is explained with an example now.

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Measured values of the ex-posure segments

If measurements have been carried out directly before evaluation, the mea-sured values are in the data storage im-mediately. If not, earlier saved mea-surements can be read into the data storage again (p. 101).

All measurements from the data stor-age are listed as available measure-ments in the upper section of the evalu-ation panel. For this example, two mea-surements are available.

Inserting measurements for the daily vibration exposure

The first entry is simply added to Daily exposure by drag & drop.

An exposure seg-ment is created im-mediately and the measured value is subordinated.

This way, several measurements could be assigned to the same exposure seg-ment. The measured values would be av-eraged then.

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Filling out fields

Several fields with pencils are visible now. They can be edited for overview. These are the name for the total daily vibration exposure and single exposure segments, but also the actual exposure duration for the re-spective exposure segment.

After dropping the measurement to the daily exposure, the measured time is in-dicated here first. Correct calculation however requires the time a person actually spends with this activity per day. The duration can be selected from a list but also entered directly if no suitable list en-tries are available.

Adding other measurements

The procedure for other measurements from the upper sec-tion is the same.

Simply drag it to the daily exposure and fill out the fields. As a result, you read off the daily vibration ex-posure A(8), calcu-lated acc. to the standard.

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Deleting measurements

If you dropped a measurement at the wrong place – no problem. Simply click right on the measurement and select Delete entry. Afterwards, the measurement can be found in the upper section and assigned again.

Event messengersIn general, event messengers are de-scribed from page 139 on. The In-noMeter HVM 2631 is able to inform about limit exceed-ing and measured values by messen-gers.

For instance, the measurement result can be displayed in an extra display as big as the screen. Or in case of routine tests, an alarm can be signaled electri-cally, for example by an alarm lamp, in case of limit ex-ceeding.

Using messengers is similar in all instruments and is explained on page 40.

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6.16. InnoMeter® HVM 5349:2001 – Human hand-arm vibration measurement

OverviewIf hand held machines or workpieces transmit strong vibrations to the operator, a de-creased performance and even diseases in blood vessels, nerves, bones, joints, muscles or connective tissue might develop. For this reason, diverse guidelines stipulate mea-surements according to EN ISO 5349, which determines the impact on the human hand-arm system.

With the InnoMeter HVM 5349, these measurements are carried out conforming to standards. Additionally, the instrument contains a data storage and it provides for the entire evaluation of the daily vibration exposure [the A(8) value], also if it is based on several measurements.

The integrated guidance system helps users to fully benefit from the wealth of functions and to reliably carry out the measurements, without requiring detailed knowledge of the standard. Four panels lead you through logical steps to an efficient and successful re-sult:

1. The panel Measurement mode permits to select between triaxial and uniaxial measurements.

2. The actual measurement is performed using the panel Measurement.

3. The measured values are managed in the panel Data storage.

4. The calculation of the daily vibration exposure is carried out in the panel Evalu-ation. A report can be printed based on this evaluation.

The standard recommends the simultaneous measurement in all three spatial axes. How-ever, it is possible to measure the single axes consecutively, if the vibration exposure stays constant during the whole measuring period. Furthermore, it is allowed to com-pletely omit the measurement of some axes, if they contribute only marginally to the to-tal result. These axes may be taken into account by using a correction factor. All these cases are provided for by the InnoMeter HVM 5349. Thus, you are free to schedule the measurements in accord with your needs.

The vibration signal is frequency weighted with a high-precision filter, which exactly reproduces the transfer function as demanded by the standard.

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Preparing the measurement

Selection treeThe configuration options and the measurement modes are arranged in a hierarchical tree-like structure. This tree is navigated with the mouse. Sub-trees can be opened or closed by a double click on the corresponding node. Alternatively, one can click on the symbols + and - on the left side of the nodes. Using the buttons Show all measure-ment modes and Show only standards the tree can be entirely opened or closed with a single click.

Sensor configurationThe node Sensor configuration allows to activate a Sensor automatic.

Using the sensor automatic, one can select the sensors which are to measure along the x-, y- and z-axis. Before measuring, the software looks for the InnoBeamer chan-nel amongst all measurement channels to which the re-spective sensor is connected. This channel is used for the respective axis then. On page 20, assigning a sensor to a measurement channel is described.

If the same sensor is assigned to several axes, the corre-sponding fields are shown with a yellow background, in order to warn of this error.

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User guidance (p.107)

Selection tree (p.106)

Chosen selection (p.107)

Explanatory text (p.107)

Switch for assessment (p.107)

Open choice tree (p.106)

Exposure duration (p.107)

Close choice tree (p.106)

Clone instrument (p.31)

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Assessment configuration

The node Assessment configuration contains an option, which, when activated, caus-es a preliminary assessment to be shown already during a running measurement. The as-sessment is given by coloring the display for the total vibration value. Thus, one obtains a fast and easily recognizable assessment for the currently measured value. Since the as-sessment evaluation rests on the comparison with an energy equivalent daily dose, the Daily exposure duration has to specified in order to use the preliminary assessment option. The given duration value is used to extrapolate the currently measured value to the daily vibration exposure A(8), which is the basis for the assessment.

Report configuration

Thanks to the report function, you can easily print measure-ment reports in order to document the re-sults of your work. Therefore, report templates are avail-able. Their genera-tion is described on page 88.

This panel also al-lows to choose the printer to which the report is to be sent. At start-up, the stan-dard printer is cho-sen by default.

The actual printing of a report is carried out at the push of a button (p.116).

User guidance

A textual User guidance system provides support and enhances the ease of use of the instrument by pointing out possible actions, showing the currently Chosen selection and providing Explanatory texts. The hints are lettered in blue.

Measurement mode

The available measurement modes are: triaxial measurement of all three spatial direc-tions simultaneously (favored by the standard), and uniaxial measurements along the X, Y and Z axis, respectively. After selecting a measurement mode, the measurement dura-tion should be adjusted. The measurement modes selected here only affect the direct data acquisition. Unmeasured axes are taken into account later during evaluation.

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Performing the measurement

User guidance

The currently selected Measurement mode is displayed in short form as a header line at the top of the panel. A textual User guidance indicates possible actions and points out error conditions.

Axis assignment and handle orientation

In order to obtain a comparable result and perform a standards conforming measure-ment, the orientation of the sensor axes relative to the hand as it grips the handle must be the same for each measurement. A diagram shows the standardized axis assignments, which helps in correctly aligning the sensors and to properly prepare the measurement.

Axis value windows

The axis value windows display the currently measured value for each axis, as well as status information. The main value measured is the RMS value of the frequency weight-ed vibrational acceleration.

An important part of the status information is the assignment of the measurement chan-nels, since these have to be done as defined in the standard. The colored display of the measured values eases the quick correlation. When fewer than three channels are used in a measurement, the inactive axis value windows are displayed in gray.

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Current channel (p.41)

Current gain (p.41)

Underload (p.41)

Overload (p.41)Current measurand (p.41)

Current parameter (p.41)

Measured value (p.108)

Current sensor (p.40)

Expand/collapse signal settings (p.109)

Start/stop button (p.31)

User guidance (p.108)

Elapsed duration (p.109)

Remaining duration (p.109)

Vibration total value (p.109)

Axis assignment (p.108)

Axis value windows X,Y,Z (p.108)

Current mode (p.108)

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The overload and underload indicators give important status information during a mea-surement. They ascertain the correct measuring range and are of help in avoiding mea-suring errors and inaccuracies. Therefore, these indicators are required by the standard. Further informations can be found at the given page references.

Vibration total value

The frequency weighted RMS values of the acceleration in all measured axes are com-bined to form the vibration total value. This measurand is denoted by ahv in the standard. The InnoMeter HVM 5349 always displays the current value of this measurand, without requiring a separate calculation.

Time displays

The standard EN ISO 5349-2:2001 requires, that the measurements provide a mean val-ue over a duration, which is representative of a typical usage of the device. The mea-surement duration should last at least one minute. Therefore, the InnoMeter HVM 5349 allows to specify the desired measurement duration in advance. Two time displays show the remaining and the elapsed measurement time. When the preset duration has elapsed, the measurement is stopped and the measured value displays are frozen. The measured values are automatically transferred to the data storage.

The automatic transfer to the data storage is also done if a measurement is stopped earli-er. However, in this case the button Erase measurement appears, allowing to cancel the transfer.

Signal input

The button Set-tings >> opens a panel which allows to configure the channel assignment and to set the gain of each channel.

For an easy overview, each axis is uniquely distinguished by a color. The measuring channel for each axis can be chosen from a list which contains all channels available for the InnoMeter HVM 5349. The channel assignment is inactive if the sensor automatic is in use (p. 106).

In order to avoid the accidental selection of two equal channels, the affected fields show a yellow warning in this case.

The gain settings allows to select the appropriate measuring range (p.31). The overload and underload indicators give helpful information in order to find the correct gain set-ting (p.41).

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Data storage

The panel Data storage is designed to

amend measurements with individual remarks, show detailed information for each measurement, manage the storage (erase, write, read data), export the data for further processing in word processors or spreadsheets.

Table of measurements

This table contains all stored measurement results (up to a maximum of 100000 mea-surements). The most important values are displayed immediately in the table.

The second column shows an exclamation mark on a yellow background as a Warning, if the measuring duration does not agree with the requirements of the standard.

A single measurements can be selected in the table by clicking on it with the mouse. The selected measurement is marked with a black frame.

The label given for the measurement mode (first column of the table) is composed of

1. a running number,2. the (fixed) description of the measurement (triaxial, or x-,y-,z-axis) and3. the (user-defined, i.e. variable) first line from the field Your remarks.

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Table of measurements (p.110)

Assessment (p.109)

Warning (p.110)

Switch for file name (p.111)

File name (p.111)

File format (p.111)

Save measurements (p.111)

Load measurements (p.111)

Erase one measurement (p.111)

Erase all measurements (p.111)

Hints and warnings (p.111)

Details of measurement (p.111)

Measurement mode (p.111)

Remarks (p.111)

Marked measurement (p.111)

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The running number changes if measurements are erased from the table. At all times, there is a continuous numbering of all measurements in the table. In order to uniquely label a measurement, it may be convenient to enter a short description as the first line of the remarks. This is, of course, not mandatory, since the measurements are always dis-tinguishable by their date and time, which is automatically recorded.

When data file is read in, the new data is appended to the end of the table. All previous data is kept.

The possibility to read in separate data files may be especially advantageous, if several measurements, which were performed at different times and/or at different places, are to be combined into a single evaluation.

Marked measurement

Detailed information is provided for the selected measurement. The display includes:

the measurement mode, time and date of the measurement, parameters of the measurement, a verbal assessment.

It is possible to add Remarks to the measurement. These are saved together with the measuring values. In order to ease data management, the first line of the remark is ap-pended to the measurement mode in the first column of the Table of measurements. This can be used to characterize the measurements by, e.g., the measuring location.

If there is a warning (i.e., if there is an exclamation mark in the seconds column of the main table), a short characterization of it is shown in the field for Hints and warnings. Furthermore, the fields (parameters or measured values) relevant for the warning are shown with a yellow background (e.g. the duration in the example above).

Erasure of measurementsWith the buttons Erase marked measurement and Erase all measurements a sin-gle measurement can be erased or the entire data storage be cleared, respectively. Please note, that this cannot be revoked and the data is irreversibly lost.

Write and read data filesThe data storage can be exported in two file formats, as a text file or in CSV format (comma separated values). The text file is, e.g., suited for inclusion in a protocol, which is to be printed. On the other hand, the CSV format contains the data in a tabular ar-rangement. This format is suitable for importing into a spreadsheet.

Furthermore, it is possible to read data files, which have previously been saved in CSV format, into the InnoMeter HVM 5349. Thereby one may list up and record related measurements together, even if they are performed at different times. A click on the button Read data file opens a window to select the file to read.

The file name to be used when writing data to disc can immediately be entered into the field Name. The button (...) allows the selection of the directory to be used. Place hold-ers for variables (p.36) can be used in the file name. If no file name extension is provid-ed, the default one (.txt or .csv) will be used.

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If the switch Create standard file name is activated, a default name will be generated from the current date and time.

Evaluation

The panel Evaluation consists essentially of two separate areas, the Table of mea-surements and the Evaluation table. The Separator between both tables can be relo-cated with the mouse, which provides a way to adapt the space distribution between both tables to the requirements at hand.

Table of measurementsInitially, this table contains all those measurements of the data storage. The lower eval-uation table is empty at this stage. Each measurement is labeled by its running number and its description (including the user-defined part). This label is the same as that used in the data storage. To give a better overview, the date and time of the measurement and the measured vibration total value are shown in the table, too.

In order to perform the evaluation, i.e. the automated calculation of one or several A(8) values, the measurements are consecutively transferred to the evaluation table by drag&drop. To this end, the designated measurement must be clicked with the left mouse button, and, while still holding down the left mouse button, be moved into the evaluation table. When the mouse button is released at a suitable location, the measure-ment enters the evaluation.

Measurements, which enter the lower evaluation, are removed from the upper table of measurements. This way it is impossible for a measurement to be accidentally taken

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Table of measurements (p.112)

Separator (p.112)

Evaluation table (p.113)

A(8) total value (p.114)

Ai(8) partial value (p.114)

Editable field (p.113)

Vibration total value (p.114)

Warning sign (p.115)

Warning text (p.115)

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into account several times. If a measurement is removed from the evaluation table, it is inserted into the upper table of measurements again.

Evaluation table

The entries of the evaluation table are organized in a hierarchical tree-like structure. The highest hierarchy-level contains nodes with the description Daily exposure. Each Daily exposure may be comprised of one or several Exposure segments. The expo-sure segments correspond loosely to activities, which are associated with a certain vi-brational exposure. Each Exposure segment is comprised of one or several Total val-ues, i.e. triaxial vibration total values. A Total value is either a triaxial measurement, or it contains uniaxial measurements. In either case, it is at least notionally comprised of the axis values (X-, Y-, Z-Value), which exist as separate nodes for inspection. A short example is described now for illustrating the procedure. Thereafter, the available meth-ods for evaluation are presented in detail on page 114.

Water has entered the cellar of a sin-gle-family house through the ground. Now the underground walling is un-covered and is protected by injections of a hydrophobic substance. Therefore, asphalt has to be broken up above-ground before an excavator can bring away the ground. By means of a ham-mer drill, holes are brought into the walling. These holes are filled with the injection packages. The impact on the hand-arm system mainly results from breaking up the asphalt and drilling.

The picture shows the 4 measurements carried out for the daily exposure in the upper table.

The lower evaluation table in contrast is empty, i.e. without included measurements. By default, there already is an empty template for the daily exposure [A(8)].

If a measurement (no. 1 in the upper example) is dropped on the word Daily exposure, this measurement is added to the daily exposure, and its measured values are entered accordingly. The right picture shows this situation, where the evaluation tree is already opened (by clicking on the appropriate + or – symbols).

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In order to obtain a valid A(8) value, the daily duration of the “activity” must be entered in the table. Thus, in our example, it is entered in the column Duration in the second row. Editable fields are marked with a stylized pencil to signal that the user can make changes there. The duration can be se-lected from a list but also entered di-rectly if no suitable list entries are available.

Working with the breaker only lasted one minute that day, so that this value is entered here.

The pencils in the column Description signal that you can enter your own de-scriptions here. These entries do not influence the calculation itself, but they are used for saving/printing the evaluation protocol.

Now measurement no. 3 is added. The daily exposure duration is entered as well. Drilling occupies comparatively a lot of time, so that 5 hours are en-tered here.

Now the daily vibration exposure cal-culated acc. to the standard can be read off immediately. By clicking right on the row of the daily exposure, printing a record is activated. The result is a finished measurement and calculation record which not only includes the fi-nal value but also all proper partial measurement values and the calcula-tion scheme as base for the calculated daily exposure.

Displayed valuesThe values to be calculated are updated automatically. The displayed values for each node type are:

Axis-Value: the weighted interval-rms-value ahw, Total value: the vibration total value ahv, Exposure segment: the contribution Ai(8) to the daily exposure, Daily exposure: the energy-equivalent effective value A(8), determined for

a reference duration of 8 hours.A calculated quantity not is shown if entries are missing, on which it would depend.

Replacing nodes in the evaluation treeMeasurements can be replaced by other measurements in the evaluation table. This can be effected by dropping the new measurement onto the measurement to be replaced. A

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triaxial measurement can only be dropped on a Total value node. Uniaxial measure-ments can be dropped either on a Total value node, or on a matching Axis-Value node. The measured value is entered in the corresponding axis in both cases. A replace-ment of a triaxial measurement by a uniaxial measurement can only be achieved through dropping on the Total value node.

Several measurements per exposure segmentAccording to the standard, the assessment of a single activity (i.e. an exposure segment) should be comprised of several measurements, for instance at different times of a day. The aim is to minimize the influence of random measurement errors. Therefore, it is possible to assign several measurements (i.e. Total values) to a single Exposure seg-ment. A measurement which is dropped on an Exposure segment is assigned to it as a new, additional Total value sub-node.

Several measurements contribute to the Ai(8) value of the exposure segment weighted with their measurement duration. That means, that long measurements have a higher weight than short measurements. (One can think of it as if the evaluation concatenates all measurements together into one long measurement run.)

The standard recommends that each single measurement should be at least 8 seconds long, and the sum of all measurements of a single exposure segment should be at least 1 minute. If the first condition is not met, the InnoMeter HVM 5349 issues a warning in the data storage. Missing the second condition leads to a warning in the evaluation table (an exclamation mark on a yellow triangle in the affected rows, and a textual warning below the table).

Note that, whereas the Duration shown for measurements is the actual duration of the measurement run, for Exposure segments the (estimated or measured) daily duration of the corresponding exposure has to be entered.

Several exposure segments per daily exposureA Daily exposure can be comprised of several Exposure segments, of course. A new Exposure segment is added, when a measurement is dropped on a Daily exposure node. Further measurements belonging to this new Exposure segment can then be dropped onto this newly created Exposure segment node. The A(8) value is then cal-culated from the Ai(8) values of all Exposure segments belonging to the Daily expo-sure.

Action menusA right-click inside the evaluation table displays a menu, which gives access to several actions, depending on the node which has been clicked.

Erase values removes all measurements, belonging to the se-lected sub-tree. They will be re-entered into the measurement table. The hierarchical structure in the evaluation tree is kept.

Delete entry has the same effect as Erase values. Additionally, the selected sub-tree in the evaluation table is also deleted.

Enter description allows to enter or edit an entry in the column Description. This action is only available for the hierarchy levels Daily exposure and Exposure seg-ment.

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Enter duration allows to enter or edit the daily exposure duration of Exposure seg-ments.

Enter relative weight allows to enter or edit an influence factor for unmeasured axes. This factor is shown in the second column (Description) and determines the computational value of this axis as a percentage of the total value of the measured axes (belonging to the same triaxial Total value).

Add A(8) calculation creates a new empty template for a Daily exposure calcula-tion. You have to click in an empty area of the table to use this action.

Write protocol file exports a protocol of the calculation as a text file. A window opens for the file selection. This action is only available for Daily exposure nodes or in an empty area of the table. Furthermore, the evaluation tree must be entirely filled with data, i.e. a valid A(8) value must be displayed for each Daily exposure node.

Print report generates a complete report (p. 116).

Remarks with regard to uniaxial measurementsIt is possible to measure all three spatial axes with a single sensor. To this end, the mea-surements are performed consecutively. This procedure is covered by EN ISO 5349:2001. It has to be ensured, though, that the operating conditions stay the same dur-ing the successive measurements. The three measurements must then be assigned to the same Total value during evaluation.

The standard also allows to omit the measurement of some axes, if there is a clear direc-tion with the strongest vibrations, and at least this direction is measured. In this case any unmeasured axis must be taken into account be a correction factor. This is done by pro-viding a relative weight for unmeasured axes during evaluation, as described above.

Example 1: If a relative weight of 30% is entered in the evaluation table and in the main vibrational direction a value of 10 m/s² is measured, the unmeasured axis is as-sumed to have a value of 3 m/s², which is then used in the calculation of the triaxial to-tal value.

Example 2: If only one axis is measured out of the three, all of which have the same vi-bration strength, the proper value for the relative weight for the two unmeasured axes is 100%.

Even if uniaxial measurements are sufficient, it is recommended to perform measure-ments of all three spatial directions at least once, so that there is a solid basis for the es-timation of the correction factors.

Printing a report

A right click on a Daily exposure node exposes a context menu which has – amongst others – the entry Print report. Clicking on this entry starts the printing process. It uses the report template which is currently selected in the list Use report. The configuration of report templates is explained on page 107.

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Event messengersIn general, event messengers are de-scribed from page 139 on. The In-noMeter HVM 5349 is able to inform about limit exceed-ing and measured values by messen-gers.

For instance, the measurement result can be displayed in an extra display as big as the screen. Or in case of routine tests, an alarm can be signaled electri-cally, for example by an alarm lamp, in case of limit ex-ceeding.

Using messengers is similar in all instruments and is explained on page 40.

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6.17. InnoMeter® HVM 6954:2001 – Vibration measurement on ships

OverviewOn board passenger and merchant vessels vibrations can occur, which may negatively interfere with the work of the crew or which may diminish the comfort of passengers and crew. In order to assess complaints or to prevent them, measurements according to DIN ISO 6954:2001 are suitable, since they allow the evaluation of the vibration severi-ty with regard to habitability on board ships.

By using the InnoMeter HVM 6954:2001, one can easily perform these standards con-forming measurements. Additionally, the instrument contains a storage for recent mea-surement results.

The integrated guidance system helps users to fully benefit from the wealth of functions and to reliably carry out the measurements, without requiring detailed knowledge of the standard. Three panels lead you to a successful assessment:

1. In the panel Measurement mode the measurement is prepared. The measure-ment mode is simply chosen from a list. The necessary parameters for a con-forming measurement are then already fixed by the program. A few parameters can be varied, e.g. the duration. Furthermore, as a convenience function, the sen-sor automatic can be activated here.

2. The actual measurement is performed using the panel Measurement. The mea-sured values are automatically copied into the Data storage.

3. The panel Data storage contains the measurement results in a concise way. A standards conforming assessment (good/bad/acceptable) is immediately avail-able and displayed by a colored background. Furthermore, the measurements can be amended with your own remarks, managed, exported and imported. On the press of a button a whole report is generated.

The standard demands simultaneous measurements in all three spatial axes at least at some locations per deck. The InnoMeter HVM 6954:2001 therefore has three channels.

The characteristic vibration quantities displayed per channel are – depending on the measurement mode –

the RMS value of the weighted vibration velocity [mm/s] or the RMS value of the weighted vibration acceleration [mm/s²].

The frequency weighting is performed with a high-precision filter, which exactly repro-duces the transfer function as demanded by the standard. The allowable limit values are set automatically by selecting the measurement mode.

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Preparing the measurement

Selection treeThe configuration and measurement modes are arranged in a hierarchical tree-like struc-ture. This tree can be navigated with the mouse. Double clicks open or close the sub-trees. Alternatively, the same is effected by simple clicks on the symbols + and - locat-ed left of the nodes. The buttons Show all measurement modes and Show only standards allow to open and close he tree structure (nearly) entirely.

Sensor configurationThe node Sensor configuration allows to activate a Sensor automatic.

Using the sensor automatic, one can select the sensors which are to measure along the x-, y- and z-axis. Before measuring, the software looks for the InnoBeamer chan-nel amongst all measurement channels to which the re-spective sensor is connected. This channel is used for the respective axis then. On page 20, assigning a sensor to a measurement channel is described.

If the same sensor is assigned to several channels, the corresponding fields are shown with a yellow back-ground, in order to warn of this error.

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User guidance (p.120)

Selection tree (p.119)

Chosen selection (p.120)

Explanatory text (p.120)

Open choice tree (p.119)

Set duration (p.120)

Close choice tree (p.119)

Clone instrument (p.31)

Limit values (p.120)

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Report configuration

Thanks to the report function, you can easily print mea-surement reports in order to document the results of your work. Therefore, report templates are available. Their generation is described on page 88.

This panel also allows to choose the printer, onto which the report is to be sent. At startup, the standard printer is preset.

The actual printing of a report is initiated by a push of a button.

The InnoMeter HVM 6954:2001 provides the follow-ing variables:

start of measurement (time) start of measurement (date) duration of measurement time and date of printing your remarks measurement mode sensor name for axis X, Y and Z signal source X, Y and Z detailed list of measurements (several pages).

User guidance

A textual User guidance system provides support and enhances the ease of use of the instrument by pointing out possible actions, showing the currently Chosen selection, providing Explanatory texts and indicating the Limit values for the assessment of vi-bration severity.

Measurement mode selection

The available measurement modes comprise the measurement of the vibration velocity and the vibration acceleration, for all three axes in each case. The assessment limit val-ues (Category A, B and C) are chosen here, too. After choosing the measurement mode, the measurement duration can be adjusted in this panel. The button ISO sets the dura-tion to 1 minute.

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Performing the measurement

User guidance

A textual User guidance system provides support and enhances the ease of use of the instrument by pointing out possible actions, showing the currently Chosen selection and providing Explanatory texts. The hints are lettered in blue.

Axis value window

The axis value windows display for each axis the currently measured value, as well as status informations. The main measured value is the RMS value of the frequency weighted vibrational acceleration or velocity.

An important part of the status information is the assignment of the measurement chan-nels, since these have to be done as defined in the standard. The colored display of the measured values eases the fast correlation.

The overload and underload indicators give important status information during a mea-surement. They ascertain the correct measuring range and are of help in avoiding mea-suring errors and inaccuracies. Therefore, these indicators are required by the standard. Further information can be found on page 41.

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Current channel (p.41)

Current gain (p.41)

Underload (p.41)

Overload (p.41)Current measurand (p.41)

Current parameter (p.41)

Current sensor (p.40)

Measured value (p.121)

Axis value windows X,Y,Z (p.121)

Vibration total value (p.122)

Remaining duration (p.122)

Elapsed duration (p.122)

User guidance (p.121)

Start/stop button (p.31)

Erase data button (p.122)(appears situation-dependently)

Expand/collapse signal input panel (p.122)

Current mode (p.121)

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Vibration total value

The maximum of the measuring values of all axes is the vibration total value.

The display of the vibration total value is shown in color for weighted measurements. To this end, the total value is compared with limiting values as given (informally) by the standard. The meaning is:

green: good/complaints are not probable. yellow: acceptable/complaints are possible. red: bad/complaints are probable.

Time displaysEN ISO 6954:2001 stipulates a measurement duration of at least one minute or two minutes if there are significant frequency parts below 2 Hz. That is why you can enter the measurement duration before measuring. Two time displays show the remaining and the elapsed measurement time. When the preset duration has elapsed, the measurement is stopped and the measuring value displays are frozen. The measured values are auto-matically transferred to the data storage.

The automatic transfer to the data storage is also done if a measurement is stopped man-ually. However, in this case the button Erase measurement appears, allowing to can-cel the transfer.

Signal inputThe button Settings >> opens the panel for the signal set-tings.

Here, the spatial axes can be configured for the measurement. For easy overview, each axis is uniquely distinguished by a color. The measuring channel for each axis can be chosen from a list which contains all channels available for the InnoMeter HVM 6954. The channel selection is inactive if the sensor automatic is in use (p. 106).

In order to avoid the accidental selection of two equal channels, a yellow warning is given in this case.

The gain settings allows to select the appropriate measuring range (p.31). The overload and underload indicators give helpful information in order to find the correct gain set-ting (p.41).

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Data storageThe panel Data storage is designed to

amend measurements with individual remarks, show detailed information for each measurement, manage the storage (erase, write, read data), export the data for further processing in word processors or spreadsheets.

Table of measurements

This table contains all stored measurement results (up to a maximum of 100000 mea-surements). The most important values are displayed immediately in the table.

The second column shows an exclamation mark on a yellow background as a Warning, if the measurement duration does not conform with the requirements of the standard or if an over- or underflow occurred.

A single measurements can be selected in the table by clicking on it with the mouse. The selected measurement is marked with a black frame.

The label given for the measurement mode (first column of the table) is composed of

1. a running number,2. the (fixed) description of the measurement and3. the (user-defined, i.e. variable) first line from the field Your remarks.

The running number changes if measurements are erased from the table. At all times, it is a continuous numbering of all measurements in the table. In order to uniquely label a

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Table of measurements (p.123)

Assessment (p.122)

Warning (p.123)

Marked measurement (p.124)

Switch for file name (p.124)

File name (p.124)

File format (p.124)

Save measurements (p.124)

Load measurements (p.124)

Erase one measurement (p.124)

Erase all measurements (p.124)

Hints and warnings (p.124)

Details of measurement (p.124)

Measurement mode (p.124)

Remarks (p.124)

Print report (p.125)

Select report template (p.125)

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measurement, it may be convenient to enter a short description as the first line of the re-marks. This is, of course, not mandatory, since the measurements are always distin-guishable by their date and time, which is automatically recorded.

When data file is read in, the new data is appended to the end of the table. All previous data is kept.

The possibility to read in separate data files may be especially advantageous, if several measurements, which were performed at different times and/or at different places, are to be combined into a single evaluation.

Marked measurement

For the marked (selected) measurement more detailed information is provided. The dis-play includes:

the measurement mode, time and date of the measurement, the duration of the measurement, a verbal assessment.

It is possible to add Remarks to the measurement. These are saved together with the measuring values. In order to ease data management, the first line of the remark is ap-pended to the measurement mode in the first column of the Table of measurements. This can be used to characterize the measurements by, e.g., the measuring location.

If there is a warning (i.e., if there is an exclamation mark in the second column of the main table), a short characterization of it is shown in the field for Hints and warnings. Furthermore, the fields (parameters or measured values) relevant for the warning are shown with a yellow background (e.g. the duration in the example above).

Erasure of measurementWith the buttons Erase marked measurement and Erase all measurements a sin-gle measurement can be erased or the entire data storage be cleared, respectively. Please note that this cannot be revoked and the data is irreversibly lost.

Write and read data filesThe data storage can be exported in two file formats, as a text file or in CSV format (comma separated values). The text file is, e.g., suited for inclusion in a protocol, which is to be printed. On the other hand, the CSV format contains the data in a tabular ar-rangement. This format is suitable for importing into a spreadsheet.

Furthermore, it is possible to read data files, which have previously been saved in CSV format, into the InnoMeter HVM 6954 . Thereby one may list up and record related measurements together, even if they are performed at different times. A click on the button Read data file opens a window to select the file to read.

The file name to be used when writing data to disc can immediately be entered into the field Name. The button (...) allows the selection of the directory to be used. Place hold-ers for variables (p.36) can be used in the file name. If no file name extension is provid-ed, the default one (.txt or .csv) will be used.

If the switch Create standard file name is activated, a default name will be generated from the current date and time.

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Print a report

A click on the button Print report starts the printing process. It uses the report template which is currently selected in the list Use report. The configuration of report templates is explained on page 120.

Event messengersIn general, event messengers are de-scribed from page 139 on. The In-noMeter HVM 6954 is able to inform about limit exceed-ing and measured values by messen-gers.

For instance, the measurement result can be displayed in an extra display as big as the screen. Or in case of routine tests, an alarm can be signaled electri-cally, for example by an alarm lamp, in case of limit exceeding.

Using messengers is similar in all instruments and is explained on page 40.

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6.18. InnoMeter® 4150-3:1999 – Vibration measurement of buildings

OverviewThe exposure of buildings to high vibrations may cause damages, which can negatively affect the safety and utility value of these buildings. The corresponding risk of damage can be judged by a vibration measurement according to the standard DIN 4150-3.

By using the InnoMeter 4150-3:1999, one can easily perform these standard-conform-ing measurements. Additionally, the instrument contains a data storage for recent mea-surement results, the complete final evaluation even during measurement and archiving of the results. Automatic transmission of measurement results via e-mail or notification of outsiders about alarms for instance via signal lamps is possible. The integrated user guide allows users (even without profound knowledge of the standard) to use this plenty of functions and reliably carry out the measurements.

The InnoMeter 4150-3:1999 supports measurements according to

DIN 4150-3:1999 (vibrations in buildings) assessment for momentary and sustained vibrational excitation assessment for different types of buildings (industrial, residential and listed) and for

earth-laid pipelines frequency limit of 80 or 315 Hz.

In most cases, the standard demands simultaneous measurements in all three spatial axes. The InnoMeter 4150-3:1999 therefore has three channels.

The characteristic values displayed per channel are

current maximum value of the frequency-weighted vibration velocity [mm/s] current main frequency of the vibration [Hz] maximum value of the frequency-weighted vibration velocity taken over the entire

measurement [mm/s] and the associated main frequency [Hz].

Saving the sampled time signal of the vibration velocity is also possible. If this feature is activated, the sampled data of the events (limit or warning threshold crossings) are stored, thus allowing for the subsequent manual analysis of occurred vibration values and frequencies.

The frequency weighting is performed with a high-precision filter, which exactly repro-duces the transfer function as demanded by the standard. The allowable limit values are selected automatically through the selection of the measurement mode. The InnoMeter 4150-3 automatically determines the main frequency (which in turn determines the level of the admissible vibration value) of the vibrations already during the running measure-ment, a feature which is generally not available in conventional measuring devices.

1. The actual measurement is performed using the panel Measurement. Apart from measuring the main characteristic values, some additional values are also deter-mined. The measured values are automatically copied into the data storage.

2. The panel Data storage contains the measurement results in a concise way. Each crossing of the warning threshold or the limit value is recorded as an event. An as-sessment conforming with the standard (good/bad/acceptable) is immediately avail-able and displayed by a colored background. Furthermore, the measurements and the events can be amended with your own remarks, managed, exported and imported.

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3. The panel Graphical display shows a concise chart of the events – warning and lim-it crossings. The time period of the data to show can be conveniently chosen with the mouse. A report of the chosen time period can be created at the push of a button.

Preparing the measurementIn the panel Measurement mode the measurement is prepared. This panel allows to

choose the measurement mode, adjust the free parameters of the measurement (e.g., the frequency limit and the

warning threshold), activate the sensor automatic, if required, and activate the auto save feature, if required.

Selection tree

The measurement modes are arranged in a hierarchical tree-like structure. This hierar-chy contains

the relevant standard, the assessment criterion (momentary and sustained vibrations),

the type of building, the location of the sensor (if applicable).

To navigate within this tree, sub-trees can be opened or closed. A + sign at the left side signifies that a node of this tree has sub-nodes. They can opened (the sub-tree becomes visible) by clicking on this + sign or by a double click on the node itself. The sub-tree can be closed again by clicking on the – sign or a double click on the node.

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Selection tree (p.127)

User guidance (p.128)

Chosen standard (p.128)

Chosen measurement mode(p.128)

Details of mode (p.128)

Open choice tree (p.127)

Set duration (p.128)

Set infinite duration (p.128)

Set time window (p.128)

Warning threshold (p.128)

Close selection tree (p.127)

Clone instrument (p.31)

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A click on the button Show all measurement modes opens the entire tree structure. In contrast, clicking on Show only standards closes the tree structure (nearly) entire-ly.

The deepest nodes of the tree (the „leaves“) represent the standardized measurement modes. The corresponding measurement mode is chosen by clicking on such a node. A parenthesized number on the right hand side of the node gives the number of such mea-surements, which are currently in the data storage.

User guidance

A textual user guidance system in blue font provides support by pointing out possible actions.

Measurement mode selection

The details of the chosen measurement mode according to DIN 4150-3:1999 are shown in a field on the right-hand side of the panel. The possible locations of the sensor are given, too.

Adjusting parameters

There are some parameters, which can be adjusted to the requirements at hand.

The most important of these parameters is the Warning threshold. It is given in per cent of the applicable limit value. The default value is 50%. When the signal exceeds the warning threshold, the colored assessment displays (e.g. the total value display) change from green to yellow. Furthermore, a warning event is generated in this case.

The Time window for event separation determines the minimum time, which must lie between two events (warnings or limit value crossings) in order for them to be regarded as two separate events by the instrument. The admissible value range is 3 to 99 s. To give an example: If the onset of a limit value crossing is separated by less than 3 sec-onds from the end of the previous limit value crossing, both events are combined to one (longer) event. Clicking the button 1 min sets the value to 60 s.

The parameter Measurement duration allows to specify a certain time, after which the measurement automatically stops. The measurement duration can be adjusted freely in steps of one second. A continuous measurement, which is to be only manually stopped, can be activated with the button infinite. If it is active, the field Measurement dura-tion is non-functional.

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Autosave configuration

The measured values (maximal vibration velocities and corresponding main frequencies of the events) are con-tinuously saved to a file during a running measurement. In this way, a possible data loss (e.g. due to a power outage) is minimized. In this configuration panel the di-rectory can be chosen, into which the autosave file is written.

If Use default name is activated, a directory is created within the installation directory of VibroMatrix, with a name comprised of date, time and a (variable) number sequence.

Deactivate default names if you want to decide where to save the data on your own. By means of the (...) button, an already existing directory can be selected. But it can also be entered directly - a file name must be set then. By means of variables (p. 36), this name can include the current date or time.

The time signal (frequency weighted vibration velocity) can be recorded for archiving purposes or for possible subsequent manual analysis. The recording comprises all three axes and proceeds with a rate of 625 or 2500 samples per second, depending on the cho-sen frequency limit (80 or 315 Hz, see below). Each event is written to a different file (e.g. Event_21.dat). The numbering of the files agrees with the numbers of the events in the data storage. The files are written in a self-explanatory tabularly arranged ASCII format.

The time signal recording can be activated for limit value crossings, or for warnings and limit value crossings, or it can be deactivated altogether.

Record in VIBRAS format is suitable for all users working with third-party-software which uses this data format for evaluating and displaying vibration signals.

Instrument configuration

This option allows to switch the frequency limit of the instrument between 80 and 315 Hz. Normally, a frequen-cy limit of 80 Hz is sufficient for a measurement accord-ing to DIN 4150-3. But for very impact-like vibration sources, e.g. for detonations, the standard recommends the higher frequency limit.

Sensor configuration

The node Sensor configuration allows to activate a Sensor automatic.

Using the sensor automatic, one can select the sensors which are to measure along the x-, y- and z-axis, respec-tively. Before measuring, the software looks for the In-noBeamer channel among all measurement channels to which the respective sensor is connected. This channel is used for the respective axis then. On page 20, assigning a sensor to a measurement channel is described.

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If the same sensor is assigned to several channels, the corresponding fields are shown with a yellow background, in order to warn of this error.

Report configuration

Thanks to the report function, printing measurement re-ports is easy. You are free to create a report according to your requirements. Therefore, report templates are avail-able. Their genera-tion and adaptation is described on p.37.

This panel also al-lows to choose the printer, onto which the report is to be sent. At startup, the standard printer is preset.

The actual printing is carried out at the push of button.

A report is comprised of fixed text elements (e.g. a heading, service address, etc.), graphic elements (e.g. company logo) and variables, which are adjusted to the values of the current measurement. The InnoMeter 4150-3 provides the following variables:

sensor name for axis X, Y and Z signal source X, Y and Z measurement mode begin and end of reported time span (time) begin and end of reported time span (date) duration of reported time span time constant for event separation warning threshold maximal value in X, Y, Z and for all axes (total value) frequency for the maximal value in X, Y and Z and for all axes worst value in X, Y and Z and for all axes frequency for the worst value in X, Y and Z and for all axes limit value X, Y and Z per cent of limit value (maximum of all axes) your remarks time and date of printing number of events (warnings, alerts or both combined)

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simple list of events detailed list of events graphical presentation of the measurement course

Performing the measurementThe panel Measurement serves for conducting the actual measurement. Basically, a measurement consists of the following steps

assignment of the measuring channels/sensors, placing the sensors, conducting the measurement for the preset duration, storing the measurement results and their assessment.

Display of the current measurement mode

For the sake of clarity and to avoid erroneous operation the currently chosen measure-ment mode is displayed in short form as a header line.

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Current mode (p.131)

Start/stop button (p.31)

User guidance (p.133)

Elapsed duration (p.133)

Remaining duration (p.133)

Vibration total value (p.133)

Axis value window X, Y, Z (p.132)

Expand/collapse signal input panel (p.132)

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Signal input

The button Settings >> opens the panel for the signal settings.

Here, the spatial axes can be configured for the measurement. For easy overview, each axis is uniquely distinguished by a color. The measuring channel for each axis can be chosen from a list which con-tains all channels available for the InnoMeter 4150-3.

In order to avoid the accidental selection of two equal channels, a yellow warning is given in this case.

The channel assignment is inactive and indicated in gray if the sensor automatic (p. 129) is in use.

The gain settings allows to select the appropriate measuring range (p.31). The overload and underload indicators give helpful information in order to find the correct gain set-ting (p.41).

As a help for new users, a hint is shown in an un-configured instrument, pointing out the sensor automatic.

Axis value window

The axis value windows display for each axis the currently measured value, as well as status informations. The main measured value is the maximum of the frequency weight-ed vibration velocity for each axis.

An exemplary part of the status information is the assignment of the measurement chan-nels. To support the user, a picture with the defined axis directions from the standard is shown. The colored display of the measured values eases the fast correlation. When fewer than three channels are used in a measurement, the inactive axis value windows are displayed in gray.

The overload and underload indicators give important status information during a mea-surement. They ascertain the correct measuring range and are of help in avoiding mea-suring errors and inaccuracies. Further information can be found on page 41.

Measured valuesThe main characteristic value for assessing the vibration exposure according to DIN 4150-3:1999 is the maximum of the frequency-weighted vibration velocity. The current magnitude of this velocity is displayed as the main value in the corresponding axis col-or.

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Frequency for max. (p.132)

Maximum value (p.132)

Current measurand (p.41)

Current parameter (p.41)

Measured value (p.132)

Current sensor (p.40)

Current frequency (p.132)

Overload (p.41)

Underload (p.41)

Current gain (p.41)

Current channel (p.41)

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Furthermore, the frequency of the vibration at the occurrence of the maximum value is an important quantity in order to determine the allowable limit value, according to the standard. During a running measurement, the frequency of the part of the signal with the largest magnitude is continuously determined. The value of the frequency determined in this way is displayed in the axis value window, too.

Additionally, the maximum value of all previously measured vibration velocities (total maximum) is shown, together with the associated frequency (in the picture above: Max. 3.90 mm/s@193 Hz).

Please note that, as a matter of principle, the frequency determination can not be carried out until a few seconds after the corresponding maximum occurred. Therefore, the max-imum value display is – so to speak – early compared with the current frequency dis-play. This time offset is automatically corrected for in the display of the total maximum and in the Data storage, of course.

Vibration total value

The maximum of the frequency weighted vibration velocity in all measured axes is de-fined as vibration total value. In the InnoMeter 4150 this value is permanently indicated updated and does not need to be calculated.

The total vibration value is compared with the limit values as given by the standard and the background is colored accordingly. The meaning is:

green: good/The (worst) value is below the warning threshold. yellow: acceptable/The value is above warning threshold (Warning). red: bad/The value is above the allowable limit (Alert).

The assessment starts with a delay of 6 seconds after switch-on, in order to allow initial transients to die down without causing a spurious warning.

Time displayTwo time displays show the remaining and the elapsed measurement time. When the preset duration has elapsed, the measurement is stopped and the measuring value dis-plays are frozen. The measured values are automatically transferred to the data storage.

If a continuous measurement is activated, the measurement is not stopped automatically and the remaining time display is fixed to zero.

User guidanceA textual user guidance helps the user to easily and successfully perform the measure-ment by indicating the next appropriate step.

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Data storageThe panel Data storage is designed to

amend measurements with individual remarks, show detailed information for the measurement and each event, manage the storage (write and read data), export the data for further processing in word processors or spreadsheets.

Table of events

The first row of the table contains data, which is relevant for the entire measurement (start time, duration, parameters, total maximum, worst value). All other rows contain the events (warnings and alerts, up to a maximum number of 100000) which have oc-curred during the measurement. Events are exceeding of the warning threshold as well as exceeding of the limit value. The most important data is directly indicated in the ta-ble.

The description in the first column of the table is comprised of

1. a running number (for events),2. the (fixed) description of the measurement or the event and3. the (user-defined, i.e. variable) first line from the field Your remarks.

In order to uniquely label an event, it may be convenient to enter a short description as the first line of the remarks. This is, of course, not mandatory, since the events are al-ways distinguishable by their date and time, which is automatically recorded.

The second and third columns are only relevant for the first row (for the whole mea-surement). The second row shows a yellow warning (exclamation mark) if the chosen gain is in error, i.e. if over- or underload occurred (also see Hint on page 135).

An L in the third column signifies a running measurement.

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Marked measurement (p.135)

Hints and warnings (p.135)

File name (p.135)

Load other measurements (p.135)

Measurement mode/Event (p.135)

Export data (p.135)

Assessment (p.133)

Details of measurement (p.135)

Load last measurements (p.135)

Save current file (p.135)

Warning (p.134)

Table of events (p.134)

Your remarks (p.135)

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Marked measurement or event

In the data storage, a measurement or event can be selected with a mouse click in the re-spective row. The marked measurement or event is identified by a black border.

Details of the measurement

For the marked (selected) measurement detailed information is provided:

the measurement mode or the kind of event, time, date and duration, parameters of the measurement, assessment as a per cent value of the limit, additional detailed measurement values not indicated in the main table

Your remarks

It is possible to add Remarks to the marked measurement and events. They are saved together with the measuring values. In order to ease data management, the first line of the remark is appended to the description in the first column of the Table of measure-ments. This can be used to characterize the events. Modified Remarks are not adopted until after a focus change has taken place, e.g. by clicking inside the Table of mea-surements.

Hints

During measurement, the InnoMeter 4150-3 pays attention to the validity of the mea-surement and – if necessary – positions notes for correctly carrying out the measure-ment at the lower bottom. The notes are for instance related to the measuring range. The gain must be adjusted in a way that the largest expected vibrations do not cause an over-load. The warning about a weak signal is normal at the start of a measurement (when no vibrations have occurred yet) and can be ignored. Inaccurate measurements are only to be expected, if this warning does not disappear after the vibrations have set in.

Writing and reading data files

The data storage can be exported in two file formats, as a text file or in CSV format (comma separated values). The text file is, e.g., suited for inclusion in a protocol which is to be printed. The CSV format in contrast contains data in a tabular arrangement. This format is suitable for importing into a spreadsheet. Furthermore, it is possible to read data files, which have previously been saved in CSV format, into the InnoMeter 4150-3.

A running measurement is automatically and continuously saved in CSV format. Thus, in order to safeguard the measured value against data loss,e.g. by power outages, no user action is required. The field Current files displays the currently used file name.

The button Copy to ... allows to export the data storage as a text or a CSV file. For a stopped measurement no automatic saving is performed. By using the button Save file modified Remarks can be written back into the Current file.

When measurement is stopped, previously saved data files in CSV format can be read in. You can Load recently used data files by choosing them from a list. Use the but-ton Choose file in order to read in other files.

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Graphical displayThe panel graphical display is designed

to obtain a graphical overview of the temporal occurrence of the events and their level,

to select the time period for a report, to print a report about the selected time period.

Graphical event display

The graphical display shows a concise diagram of the temporal occurrence of events. An alert, i.e. a time when the limit value is exceeded, is displayed by a red rectangle and a warning, a crossing of the warning threshold, by a yellow rectangle. Green rectangles mean times without events. The width of a rectangle corresponds to the duration of the event. The height of a rectangle is determined by the worst measurement value.

The display of warnings can be suppressed by activating the switch Omit warnings.

Measured value axis

The axis can be toggled between relative view (% of the limit value) and absolute view (mm/s). The view is toggled by a right click on the axis within the range of the labels.

A mouse click on the symbols and effects the enlargement or the reduction of the displayed axis segment. A double click on an axis effects an automatic scaling of the axis resolution. The measured value axis is scaled in a way that all measured values can be shown. The possible display range is restricted to a maximum of 1000 % or of 1000 mm/s, though.

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Display/report start time (p.137)

Display/report end time (p.137)

Cursor control (p.137)

Omit warnings (p.136)

Event display (p.136)

Alert (p.136)

Warning (p.136)

Time axis (p.136)

Print report (p.137)

Report selection (p.137)

Measured value axis (p.136)

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Time axis

The time axis can be shifted by clicking on the arrows at the axis ends. The display can also be directly displaced by moving the mouse while the left mouse button is held pressed within the diagram area.

A mouse click on the symbols and effects the enlargement or the reduction of the displayed axis segment.

Double-clicking on the time axis shows the entire measurement duration present in the data storage.

Display/report time rangeThe time range to be displayed can be chosen in two different ways:

Begin and end of the time period can be directly adjusted with the numerical fields for date and time in the upper part of the panel. The time axis of the diagram immediately adapts to the selected settings.

Otherwise, shifting or zooming the time axis also affects the display time period. In this case, the numerical fields adapt their values accordingly. A specific time period is most easily selected, if it is simply marked in the diagram with the right mouse button (free zoom function).

Cursor controlBy activating the switch Cursor corresponds to focus in data storage a cursor ap-pears in the diagram, which can be moved with the mouse. The event currently beneath the cursor is always shown as the marked event in the Data storage panel. If there is no event beneath the cursor, the next one to the left (i.e. earlier one) is chosen.

Using this feature, the detailed data of, e.g., graphically prominent events can be found quickly and easily.

On the other hand, if an event is selected in the Data storage, the cursor position is also updated accordingly.

Selecting a reportDifferent reports can be configured acc. to your requirements (p. 95). The available re-port templates are shown in the Use report section.

Printing a reportClicking on the button Print report starts the printing process. It uses the report tem-plate which is currently selected in the list Use report. The printed report comprises exactly the time range of the diagram, which can also be adjusted in or read off from the date and time fields in the upper part of the panel. If the warnings are hidden, they are omitted in the report.

Event messengersEvent messengers in general are described from page 139 on. On the one hand, the In-noMeter 4150-3 is able to inform about limit exceeding or measured values by messen-gers. On the other hand, it is also able to send data from the data storage periodically.

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Therefore, two lists with event messen-gers are available.

The upper one lists all messengers which react to total vibration value or state (for instance alarm) changes.

For instance, in case of exceeding the limit value, a radio switch can be switched on auto-matically or an e-mail is sent.

The lower one lists all messengers suit-able for the periodi-cal transmission of files with measured values, that means copies of the data storage. The suitable messengers for this task are e-mails alone, so that only these messengers are listed here. Additionally, a time interval can be defined here in which the data is to be sent. For opening the sent CSV-files, an InnoMaster Trainer is especially convenient. Measurement reports can be printed off-line here. But of course the files can also be opened with other programs supporting CSV-files.

Using messengers is similar in all instruments and is explained on page 40.

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7.Event messengers

7. Event messengersWhen analyzing vibrations with VibroMatrix, the measured data is displayed optically in the instruments first, or data is saved if required. Event messengers extend the instru-ments' possibilities of transferring data by additional outputs. Momentarily, these are:

3. Transfer by e-mail (more on page 140).4. Signaling in an extra display (more on page 144).5. Using radio switches (more on page 145)

Messengers must not be applied for safety critical purposes.

The event messengers are not designed for safety critical applications.

7.1. Messenger administration

Activating the messenger administration when requiredNot all users are working with event messengers. In order not to needlessly use place on the screen, the administration of the event messengers is deactivated. You activate the administration of event messengers in the InnoMaster settings, in fact in the control panel Displaying.

List of event messengersMessengers are working with information provided by the instruments. Consequently, they are at the end of the measuring chain, even behind the instruments. The InnoMaster also displays this order like that.

One click on the button Event messengers in the InnoMaster opens a list for adminis-trating all messengers. For instance, new messengers can be generated here. Connecting messengers and instruments is carried out directly in the instruments (page 39).

The opened list also shows which messengers have been generated, which of them are connected with instruments and which of them already transfer messages actively.

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The messenger is prefixed by a status indicator. 3 states are pos-sible:

Red: The messenger is not in use. Yellow: The messenger is already connected with an instru-

ment. But it is still inactive, for instance because the instrument is not yet measuring).

Green: The messenger is connected with an instrument and transmits measured data and events.

On the bottom of the instruments window you find three switch-es which can be used for filtering the listed outputs. For example, only active messen-gers can be shown.

The button Start all messengers once again explicitly starts or stops the transfer of events from the instruments to the messengers.

Creating a messenger Click right on the messenger type you would like to create

(e-mail or extra display). A menu opens.

Click on New messenger. The messenger with its settings is created.

At the same time, the new messenger appears in all instruments in the category available messengers.

Deleting a messengerA messenger can be deleted if it is not connected with an in-strument (status: red). If it is connected with an instrument and still to be deleted, it must be disconnected from the respective instrument first (page 40).

Click right on the messenger to be deleted. A menu opens.

Click on delete messenger.

Display modes of event messengersJust like instruments, outputs can be displayed in two ways. In the collapsed state, the indicate the most important data. For configuration, outputs can be extended.

If an messenger is to be no longer visible, its window can be either minimized or com-pletely closed. Even if the window is closed, the messenger is still working in the back-ground. By double clicking on its entry in the messenger list, it can be made visible again. Only if an messenger is deleted from the list (page 140), it is actually no longer existing.

7.2. Messenger type e-mail Long-term measurements with quite few events are often to run unattended. Interesting events are still to reach the measurement staff.

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A suitable way of transmitting data in general is by e-mail. Depending on the instru-ment, the following VibroMatrix data is transmitted:

Single values Status messages Measurement graphics Greater amounts of measurement data

ConfigurationA VibroMatrix instrument notes an interesting value – how does it reach the recipient at the other end of the world?

1. Firstly, you can configure for each messenger with which text it is to be sent and to which recipient the measured values are to be sent.

2. From these data, an e-mail is created and transmitted to the e-mail program installed on the PC. Configuring the e-mail program is not a part of VibroMatrix.

3. Your e-mail program sends the mail to the recipients configured in the e-mail mes-senger via Internet. Configuring the Internet access is carried out as usual under Windows and is not explained here.

Configuring the e-mail in the messenger

Double click on an messenger type e-mail. A properties win-dow opens.

Here, the recipients are con-figured first. The e-mail ad-dresses are directly written into the fields To, optionally also Cc and Bcc. They are au-tomatically transferred into a list which can be opened in order to check or select an ad-dress. By means of the – but-ton, you delete the entered re-cipient.

To: At least one recipient must be added to the list here.

Cc: These recipients will re-ceive a copy of the e-mail and their addresses will be visible for all other recipients.

Bcc: These recipients will re-ceive a copy of the e-mail. Their addresses will not be visible for the other recipients.

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VariableText in subject line as well as in the e-mail body can be filled with placeholders for cur-rently measured values or other data. When the e-mail is created after an event, these placeholders are filled with current values.

You can directly enter these placeholders (variables) in the text. But they can also be entered more comfortably by mouse click. In order to do so, select the suitable variable from the variable list and click on enter. The variable is entered at the cursor position immediately.

SubjectThe content of this line appears as subject in the recipient's e-mail. Variables can be en-tered, for example to characterize the state of the measurement object in the subject line.

TextYou can enter arbitrary text for the content of the e-mail here. For instance, the measur-ing point can be named. In case of having several measuring points, you can see from the e-mail from which measuring point the message was sent. Just like in the subject line, variables can be positioned here which are filled with current values when the e-mail is sent.

Configuring statesSome instruments are able to compare measured values with limit values and to deduce states like good/acceptable/bad from this comparison. The name of those states can be configured as well. Variables type @@state@@ are filled with the entered names when the state changes.

Additionally, you can define here for which states e-mails are to be sent when these states occur newly. For example, the message for warnings was disabled in the last pic-ture.

Configuring e-mail transmissionDisadvantageous settings might create a very high volume of sent e-mails. Thus it is possible to affect an older PC in a way which delays the measurement process. In order to avoid such problems, e-mail transmission can be restricted.

Instruments like the InnoLogger can transmit status changes as well as saved data. If no files are to be sent, the option send files must be deselected. Even if this option is ac-tive, it is useful to limit the size of files to be sent. If instruments try to send files by e-mails which are bigger than the Max. Size value, the file is not send with the e-mail.

There are also instruments which produce measured values and status changes. New values can happen up to 4x per seconds and generate an event for the connected mes-senger. The permanent transmission of many e-mails per second results in a useless high data traffic. It would be better to send the measured values only in case of having a status change as well. That is what the option Only Send values only when state changes is for.

The e-mail messenger is originally designed for transmitting rare events which can be still accompanied by a higher data volume (attached file with measured values). Too many e-mails within short time are considered as rather annoying by the recipient. On the other hand, event changes are perhaps to be documented in short succession as well.

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In order to combine both, there is an adjustable contingent of e-mails which can be sent per minute. This value can be adjusted in the field Max. e-mails per minute.

For example: If this value is 5 and there are 3 status changes within 2 seconds, they are transmitted completely. If – due to disadvantageous configuration – hundreds of event messages per minutes are transmitted to the e-mail messenger, it will send the first five e-mails and reject to send more e-mail within the current minute. Only when the next minute begins, further e-mails will be sent. This way, measuring operation can be ad-hered reliably.

Status indicatorsIn collapsed state, the window indicates the following information:

Is the messenger active, i.e. connected to a measuring instrument (On) or not (Off).

How often was an e-mail sent.

How many Errors occurred.

The counter for Sent and Error can be set to 0 by means of the button Reset counter.

Bridging to the e-mail programThe methods for e-mail transmission were originally kept simple. Unfortunately, some contemporaries started to misuse the Internet so that firewalls, authenticated transmis-sion etc. became necessary. In order to avoid these configuration barriers for you, Vi-broMatrix does not connect to the Internet itself, but it uses your already configured e-mail program for transmission.

All VibroMatrix needs is a bridge to your e-mail program and this bridge is named MAPI. MAPI is a standard interface for e-mail programs under Windows. Many estab-lished e-mail programs provide that interface.

The connection status to your e-mail program is indicated in the properties window of the e-mail messenger. Simply double click on E-Mail in the messenger list to look at it.

Most e-mail programs do not even need a spe-cial configuration for the connection via MAPI. In this case, you do not need to enter a profile.

The e-mail program Outlook, however, asks for a profile. If the profile name is entered in the properties window, the query does not happen.

In order to determine the profile, keep the pro-file line empty an click on Test. If Outlook is used as e-mail program, it opens a window with a list of all profiles. The profile name can be entered in the in command line of the prop-erties window. If you save your workspace now (page 28), this setting is permanent and VibroMatrix does not ask for it again in the fu-ture.

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In the MAPI section, you can check the connection status. A window with text mes-sages informs you about the connection establishment as well as about the successful or failed e-mail transmission.

7.3. Messenger type extra displayIf VibroMatrix is to be applied for monitoring or inspection tasks (for instance in quali-ty control), work is often divided:

1. Measurement experts define measurement modes as well as limit values and config-ure the VibroMatrix instruments acc. to these specifications.

2. Measurement staff carries out the measurements afterwards. A clear but also simpli-fied view on the measurement result is required.

This simplified view is fulfilled by the messenger extra display. The extra display is a window adjustable in size, which fills out the complete screen if required. It indicates a measured value or status and colors the text color and the background acc. to the con-figured specifications.

ConfigurationA double click on an extra display messenger opens a window with its properties.

The extra display can indicate three states of instruments. They are named Alarm/Warning/OK here. The following settings can be configured for each status:

Show text: If this option is activated, the configured text for the status is indicated. If this option is inactive, the currently measured value is indicated provided the the in-strument transmits a value.

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7.Event messengers

In the field beneath, you can configure the text to be indi-cated. Foreground and background color of the field al-ready show the coloring for the later display.

Formatting text: Text type, height and color can be config-ured, by clicking on the button T. A dialog window for text configuration opens.

Background color: Click on the colored button beneath Settings. The extra display will take over the selected background color when indicating the respective status.

Just like in the instruments, the lastly measured value and state after the measurement are displayed but do not change if the option Hold display after switch-off was activated. If not, the display shows Off when switched off.

7.4. Messenger type radio switch

OverviewBy means of this messenger, alarm states can be signaled by electric devices. Therefore, the messenger controls a 230V radio switch which switches the power supply of con-nected loads. These loads can be alarm lamps, horns, flashing lights or other devices as well.

The radio switch is a product of the FS20 radio system, which is offered by different suppliers independently from the VibroMatrix system. It is quite common in the field of home automation. In free field, the radio range is up to 100 m.

The FS20 radio system does not possess a feedback channel. There is no feedback for VibroMatrix whether the switch was actually switched after the switching command. Apart from that, the system has proved its worth thousandfold and is a very versatile and simple option for alarms.

Set up

The measurement PC (1) is equipped with a single USB radio control center type FHZ 1000 PC (2). It transfers the switching commands to all associated radio switches (3) by radio communication.

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Even if there is another FS-20 system working in the closer environment, there usually is no interference. The reason is the so-called home code. This code is set especially for the FS20 system controlled by VibroMatrix. Your VibroMatrix distributor already does that for you as factory setting. The possibility of having the same home code in a neigh-boring system is less than guessing the four-digit-code of a cash card correctly. Thus, no “foreign” radio switches are switched and in return, the radio switches of VibroMa-trix are not controlled by other radio control centers.

Driver installationIf the radio control center FHZ 1000 PC is connected to the PC for the first time, Win-dows will ask for a driver for this device. Driver installation should be carried out by means of the VibroMatrix CD. The version of the driver on that CD is adapted to the other software.

Checking the connection with the radio control centerDouble-click on the entry radio switch, the a control window for the connection with the radio control center opens.

Precondition for a successful connection is the installation of a driver for the radio control cen-ter FHZ 1000 PC and a PC equipped with this radio control center.

If no connection was made under these condi-tions, click on the Connect button. There should be a successful connection by now.

In the message window, the 100 last entries of connection attempts, but also sent messages to the radio switches are shown.

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Configuration of the event messengerDouble-click on an event messenger type radio switch to see its properties.

When clicking on settings, you can determine at which states submitted by the con-trolling instrument the radio switch is to be switched on. For example, you can use a second radio switch with op-posite configuration for control. Thus, one radio switch always has to be switched on and the other switched off. If not, there is an error.

Switching off can also be delayed in the field Holding time after switching on at least. On the one hand, this procedure prevents fluttering in case of quick status changes. On the other hand, it makes sure that the switched state lasts long enough to be noticed.

Status indicators

In collapsed state, the window indicates the following information:

Is the messenger active, i.e. connected to a measuring instrument (On) or not (Off).

Which switching state was Last sent to the radio switch, On or Off.

How often was a switching state Sent.

How many Errors occurred.

The counter for Sent and Error can be set to 0 by means of the button Reset counter.

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8.InnoMaster® Replay – Off-line analysis

8. InnoMaster® Replay – Off-line analysisData files in IDS3-format can be played back with the control center InnoMaster Re-play. Thus, it is possible to analyze the data off-line, after the actual measurement. You can – after the fact – analyze the sensor data using different instruments or using differ-ently adjusted parameters (filters, time windows, etc.).

Apart from the measurement data proper, numerous other pieces of information are saved within the data stream. They make it easy to reconstruct, after the fact, what did happen and when did it happen. One example is the current wall clock time during the measurement. If the file is later replayed later, the wall clock time from the measure-ment is shown. Instruments with wall clock time display will also show the wall clock time actually related to the measurement. Additionally, you can save your own notes with the data stream (p. 29), they are indicated again during replay as well.

The InnoMaster Replay is mostly identical to the InnoMaster RT. The operation there-fore does not require a new basic training. Compared to the InnoMaster RT, there are some additional controls and displays for data play back. Furthermore, the detailed be-havior is somewhat different, due to the nature of off-line analysis.

The CPU load display is replaced with elements which control the data replay:

Additional controls and displays for off-line analysis can be found in the panel Mea-surement data in the extended view:

The panels Displaying, Signal processing and Workspace are identical to those in the InnoMaster RT. There explanation can be found there and is not repeated here.

Basic process Off-line analysis starts with loading measurement data (p. 149).

Afterwards, you load a workspace (p. 28) or start instruments (p. 23), the way you are used to from the InnoMaster RT.

The play back control is explained from p. 149 on.

3 IDS: InnomicDataStream ... a real time data streaming format developed by IDS Innomic GmbH.

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8.InnoMaster® Replay – Off-line analysis

The control panels Navigator (p. 151), Notes and Masks (p. 156) support you dur-ing off-line analysis.

Differences between InnoMaster Replay and InnoMaster RT can be found from p. 157 on.

8.1. Loading a data fileA mouse click on the button Load file opens a window which allows to select and read in a measurement data file. Measurement data files usually have the extension ids.

The data file is analyzed while it is read in. The panel Mea-surement data shows regu-larly updated messages as a progress indicator. The time display is shaded during read in and is used as a progress in-dicator, too.

If a data file cannot be read in successfully, the time display will be shown with a red background. This does not normally occur, except if for instance a defective data medium has damaged the file. The panel Measurement data/Info reports the cause of the error.

In order to automatically open the panel Measurement data, this panel contains the option Show Navigator automatically after opening a file. If this option is activated, the panel Measurement data opens and displays the Info tab is displayed while read-ing in the file. Afterwards, if the data file has been loaded successfully, the display is switched immediately to Navigator.

8.2. Playing back a data fileThe bar of navigation buttons is the central control for data replay

The buttons of the navigation bar can be active or inactive – according to circum-stances. For instance, immediately after starting the pro-gram, there is no data yet and the only active button is Load file.

Time displayThe Time display shows the measurement time relative to the start of the data file. The time is given in the usual format hours : minutes : sec-

Playing back a data file149

Time display (p.149)

Jump forward (p.150)

Fast forward (p.150)

Play/Pause (p.150)

Jump to start (p.150)

Open new data file (p.149)

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onds. The final three digits are milliseconds. The displayed time always exactly matches the current data replay position.

Play/Pause

A click on the button Play starts the data replay. It initially proceeds at normal speed (1 second data time corresponds to 1 second wall clock time) using the display re-fresh time as set in the panel Displaying. The instruments can be operated as usual. Please note that the data time proceeds even without active instruments.

The navigation bar changes during play back. The button Play is replaced by the button Pause . A press on this button pauses play back of the measurement data. Pressing the button Play anew, data play back is resumed seamlessly from the current position.

When the end of the data file is reached, play back stops automatically. Thereafter, only the buttons Jump to start of file and Load file remain ac-tive.

Fast forwardThe button Fast forward has different functions according to circumstances:

If play back is paused or has not been started yet: Do a Single step, i.e. a click on the button means the data is processed for a time step. Thereafter, the play back paus-es again until the next click on this button.

During play back with normal speed: Switch to maximal speed, i.e. the data pro-cessing is accelerated up to the maximal computing speed the computer is capable of. Play back time proceeds faster than actual time.

During play back with maximal speed: Switch to normal speed, i.e. play back time corresponds to the actual time.

During play back with maximal speed the button Fast forward changes its appear-ance. It takes on the looks of the Play button, signaling that operating it anew will switch to play back with nor-mal speed.

Jump to a specific timeCertain freely determined or predetermined points in time can be directly jumped to.

The button Jump to start moves the data replay position directly to the start of the measurement data file, i.e. to the data time 00:00:00.000.

The button Jump forward moves following positions:

To the next position where a measurement channel has been started during record-ing of the data, i.e. to the position where this channel starts to contain data.

To a note or mask.

If no such position is to be found, the data replay position jumps 1 minute forward.

The Navigator contains a cursor which can be used to jump to an arbitrarily selected point in time (p. 152).

Playing back a data file150

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In the Notes and Masks tab, you can directly jump to the entries (p. 156).

Note: A jumps causes all active instruments to be switched off and then on again, since data is not continuous across the jump.

More tips for replaying You can start instruments even before replaying data. But in this case, the started in-

struments remains inactive until data is replayed, because only now data can be pro-cessed.

If – during play back – a channel contains no data for a certain time, zero values are delivered to the instruments. In order to signal this state in the instruments, the chan-nel display is shown with a red background as long as this condition persists (p.41).

8.3. Control panel NavigatorThis chart provides an overview of the data present in the currently loaded measurement data file. It also allows to navigate within these data. By means of the menu buttons Axes, Notes, Masks and Export, the display can be adjusted respectively more functions are available.

Note: The Navigator is only visible after measurement data has been loaded (p. 149).

Tip: Clicking left on the time display immediately opens the Navigator.

The Navigator display

Time axisThe x-axis of the graphic is the time axis. It either displays the Measuring time or the Wall clock time which was valid during the measurement. Switching is carried out by clicking on time axis with the right mouse button. But it can also be carried out in the axes menu (p. 153).

Axis navigation is completely analogous to the corresponding behavior of the graphical instruments and is explained on page 32. Automatic scaling by double clicking the axis

Control panel Navigator151

Cursor (p. 152)

Level preview (p. 152)

Channel axis (p. 152)Time axis (p. 151)

Note (p. 152)

Masked range (p. 152)

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8.InnoMaster® Replay – Off-line analysis

is possible, too: Thereafter, the time axis shows the whole data range present in the data file.

Note: During active play back navigating the time axis is prohibited. In order to zoom or scroll the time axis, the play back must be paused first.

Cursor

The current data play back time is marked with a cursor. When data playback is paused (p. 150), this cursor can be moved using the left mouse button. In this case, the data play back time is immediately moved to the new position of the cursor.

Tip: The cursor can also be positioned at a certain time by a click with the right mouse button on the time axis (in the area of the axis labeling). This is especially useful, if the cursor is currently not within the visible time range (due to zooming or scrolling of the time axis).

Channel axis with level preview

The measurement data from the data file is displayed as level preview per channel. This preview eases the differentiation of segments with high and low levels. For the level preview, the complete measuring range of the InnoBeamer including the different gain ranges are taken into account.

Gaps in the level preview mean times when the respective measurement channel was not active during measurement. For these times, no data is existent for the measurement channel.

In the axis menu (p. 153), the display of the levels can be controlled.

Axis navigation is completely analogous to the corresponding behavior of the graphical instruments and is explained on page 32. Automatic scaling by double clicking the axis is possible, too: Thereafter, the channel axis shows all saved measurement channels.

Show notes

The notes entered during measurement (p. 29) or later (p. 153) can be displayed again in the graphic. Different modes allow to display all or only certain notes or to hide all notes. These settings are carried out in the notes menu (p. 153).

By default, notes are displayed vertically above the respective time. But if required, they can also be moved to another position with the mouse pointer. If the complete graphic is zoomed or scrolled, notes are displayed vertically again.

Masked range

Measurement data from masked ranges is omitted. Therefore, red areas in the graphic represent these masks. Inserting, adjusting and deleting masks is carried out by means of functions from the masks menu (p. 154).

Control panel Navigator152

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Axes menuThe axis menu provides functions for the channel and the time axis.

Maximize automatically

If this entry is active, the maximum level in the displayed time range is drawn with maximum height. All other level values are scaled accordingly. At the same time, the en-tries for manual adjustments are deactivated.

If the entry is deactivated, the functions for manual maximizing are available again.

Maximize in displayed range

Activating this entry leads to the same behavior as Maximize automatically. But if the time range is changed, scaling is kept and not changed. If there are even higher levels in the new time range, they are cut off in their height.

Adjust to full scale

The levels are scaled to the full dynamic range of the InnoBeamer.

Display measuring time

In the time axis, the relative time since the start of the measurement file is shown.

Display wall clock time

In the time axis, the time valid during the measurement is shown. If the time range in-cludes more than 24 hours, the date from that time is shown as well.

Notes menuThis menu controls the display of notes included in the data stream.

Insert note at cursor

Additional to the notes entered in the data stream dur-ing the measurement, this function allows to enter notes during off-line evaluation. This function is only available if the cursor is not positioned at the begin of the time axis, i.e. the time display does not show 00:00:00 000.

This function switches to Notes and Masks (p. 156) immediately and adds a new row to the table at the correct time position. The time marker is already filled and a default text for the note is given. This text can be changed.

Show all

If this option was selected, all existing notes are displayed with maximum length. This function is helpful if there are only few notes in the displayed time range.

Control panel Navigator153

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8.InnoMaster® Replay – Off-line analysis

Hide all

By means of this option, no notes are displayed. This way, other elements of the Navi-gator graphic are visible more clearly.

Only show at cursor

The note closest to the cursor is displayed in full length.

Only show note with table focus

Only the note selected in the Notes and Masks (p. 156) table is displayed.

Signify hidden notes

Notes are not displayed textual, but are signified with a running number. If Only show at cursor is active at the same time, only the note closest to the cursor is displayed in full length and all other notes are displayed with a running number.

Masks menuThe masking technology of the InnoMaster Replay allows to suppress measurement data (section by section) while it is transmitted to the instruments. This function may be helpful if there are short sections of measurement data which are not rep-resentative for the complete measurement course.

For instance there may be measurements which are to form pa-rameters for a longer time. If there are abnormal short-time events now, for example overload of a measurement channel because of accidentally vi-brations on the sensor, the whole measurement would have to be dismissed.

By masking the abnormal time period, the measurement is still valid. This procedure saves time and costs since the measurement does not need to be dismissed and carried out again.

Another advantage of using masks is the preservation of the original measurement data. When the mask is deleted, the complete measurement data is visible again.

Insert masked range

This function enters a mask visible in the Navigator graphic. This provisional mask is displayed in pale red first and can be adjusted now.

Therefore, the mouse pointer is positioned on one of the mask's side borders. By clicking left and dragging, the border can be adjusted anew.

If the mask is situated and sized correctly, the procedure is fin-ished by the menu entry Finish masking. This entry is only active while a mask is in-serted.

After finishing, the mask is displayed in red. Additionally, an entry is created in the control panel Notes and Masks (p. 156). Here you can describe for which reason the mask was entered so that this information is available later.

Control panel Navigator154

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8.InnoMaster® Replay – Off-line analysis

If inserting a mask is to be aborted, the entry Abort masking has to be selected. The pale red mask disappears then. The entry is only active while a mask is inserted, too.

Fill masks with zero

This option causes the measuring time to run normally during the masked time period, but as signal, zeros are transmitted instead of the original measurement signal.

Omit masks

This option means that masked time periods are simply skipped. So regular measure-ment data is transmitted to the instruments until the masks starts and afterwards the measurement data following the mask is transmitted immediately.

Export menuThe export functions allow to save measurement data from the currently displayed time period in a new file. This way, interesting sequences in the measurement data can be extracted and saved in smaller files.

No matter which export function was selected, the con-trol panel switches to the Info tab and informs about name and size of the exported file and about the progress.

The file name of the exported file always corresponds to the one of the currently pro-cessed file. If the file name already exists, an index is added automatically.

The button Abort stops the export before finishing. The already exported data is kept.

Export IDS (ACh + DCh)Saving a data file in IDS format is always possible. During exporting in this format, all information from the selected time period is transmitted:

the measurement data from the analog inputs (ACh) the measurement data from the digital inputs (DCh) measurement information like selected gains, sensors, channel names and the wall

clock time valid during the measurement all notes and masks

The export comes along with a fixing of all notes (p. 153) and masks (p. 154) created by oneself. Users in turn can enter new notes and masks later. However, the entries from the predecessor cannot be deleted or adjusted anymore.

The data file created during the export can be loaded and replayed again with the Inno-Master Replay.

Control panel Navigator155

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8.InnoMaster® Replay – Off-line analysis

Export Text

The function for exporting in text format can be acquired optionally. Data from analog (ACh) or digital (DCh) inputs can be exported selectively.

Data is saved in columns separated by tabulators. The first column contains the time axis of the displayed section. As time axis, the relative time since starting the measure-ment file is exported, even if wall clock time (p. 153) was selected for displaying. The reason is that the wall clock time can run discontinuously, for instance if the time for the computer was switched to daylight saving time during the measurement. The Inno-Master Replay handles this situation correctly in IDS format. But after exporting as text, it would lead to a confusion for further processing programs.

For each measurement channel a further column is added. The header of the columns contain information about the respective channel name, connected sensor and physical unit.

Notes and masks cannot be exported as text.

8.4. Control panel Notes and MasksThis control panel shows all notes and masks in a table assorted by time. A type marker informs about the type of entry.

F: Fixed notes and masks. They cannot be deleted or adjusted anymore. Fixing can be achieved by exporting the measurement file (p. 155).

M: Masks.

O: Original notes saved during measurement.U: Unsaved notes are masks. If another measurement file is opened or the InnoMaster

replay closed, unsecured entries are lost. The entries are saved by clicking on the re-spective button (p. 157). After exporting to a new measurement file (p. 155) the en-tries are saved as well, but they are also fixed.

Types can be combined as well, for instance MF for a fixed mask.

Edit

By means of this button, the text field of the selected row can be edited. Editing can also be carried out by clicking left in the text field of the selected row.

Editing fixed entries (type F, p. 156) is not possible.

Jump to

This function positions the cursor in the Navigator (p. 152) on the start time of the entry and switches to the Navigator as well. Double-clicking left on the respective row causes the same behavior.

Control panel Notes and Masks156

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8.InnoMaster® Replay – Off-line analysis

Save

By means of the save button, all unsecured notes and masks in the currently saved mea-surement file are saved. But they can still be changed and are not fixed like during ex-port.

Delete

This function deletes notes or masks. Deleting fixed entries (type F, p. 156) is not possi-ble.

8.5. Differences to InnoMaster RTDue to the nature of off-line analysis, there are some differences in behavior between InnoMaster Replay and InnoMaster RT.

Sensor managementThe sensor management lists the sensors, which have been connected with the measured channels during the recording of the measurement data file. These sensors are merged into the sensor group InnomicDataStream Sensors.

The sensor management has the following peculiarities:

Sensors and sensor groups cannot be created or erased. Instead, the sensors are listed, which have been used during the measurement/recording and which appear in the data stream.

The sensor properties can be displayed, but not changed. Type, serial number and sensitivity are fixed to the values which were valid at the time of the measurement.

The calibration state is undefined. The instrument Calibrator can be used, the sensor sensitivity cannot be updated/changed, though.

The sensors cannot be assigned to a measuring channel. The assignment which was active during the measurement is automatically selected.

Changes of the sensor parameters and the channel assignment during the saved mea-surement are taken into account during play back. The „current“ settings are always used and shown.

Channel managementThe channel management has the following peculiarities:

The properties of the measuring channels can be displayed, but not changed.

Exactly those InnoBeamers and measuring channels which delivered the data that is saved in the measurement data file are displayed. The channels and devices cannot be manually erased from the displayed list.

Instruments cannot be added to the measurement channels in the InnoMaster Replay. Please use the InnoMaster RT for this purpose (p.23).

Differences to InnoMaster RT157

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Instrument managementInstruments can be started as with the InnoMaster RT (p.23).

The instrument management has the following peculiarities:

Software instruments cannot be added to the measurement channels in the InnoMas-ter Replay. Please use the InnoMaster RT for this purpose (p.23).

Using the software instrumentsThe instruments can be started and operated in exactly the same way as in the InnoMas-ter RT. Using the instruments is always possible if all InnoBeamers are connected which were used during original measurement. This is a standard functionality of Vi-broMatrix.

Using instruments independently from InnoBeamers is possible by means of the addi-tional option Free Replay. If one of the InnoBeamers possesses this option during the original measurement, the measurement data can be analyzed independently from the measurement hardware thereafter with exactly the instruments which were licensed dur-ing measurement.

By means of this option, you multiply VibroMatrix' potential since several persons at different places can analyze the data on-line and off-line simultaneously although the instruments were licensed only once.

Differences to InnoMaster RT158

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9.Facts about VibroMatrix worth knowing

9. Facts about VibroMatrix worth knowing

9.1. Technologies

InnoStreamMachine® – Digital data streams as kernel of VibroMatrixOne sensor can be connected per measuring channel, whereas several instruments can work with one measuring channel simultaneously and pick up data from the connected sensor. So measuring vibration acceleration, velocity and displacement simultaneously from one sensor is possible without problems.

An electrical split-up of the measurement signal would be problematical. With VibroMatrix, the split-up is only car-ried out after the dig-itization. All instru-ments work with ex-act data copies and there is no curtailing of the measurement quality. The optimum allocation of the digital data streams is carried out invisibly by the InnoStreamMachine. At the same time, it provides intermediate results efficiently. This way, the computer is relieved and Vibro-Matrix runs smoothly on older PCs as well.

Synchronization of measuring channelsA special Innomic technology allows to synchronize different measuring channels even between several InnoBeamers to such an accuracy, as if they would re-side on a single measuring card. From 2 to 200 mea-suring channels: You can custom-design your multi-channel system and also disassemble it again into fewer channel systems, if the need arises.

If the computer does not have enough USB interfaces, external hubs can be used. Utilizing one or two cas-cades, they allow to construct a multi-channel system at a low price. Please note, that at least the hubs which are directly connected to the InnoBeamers have to be active ones, because they have to provide the necessary operating power.

Technologies159

InnoBeamer®

Digitizing of sensor signals

Measuring channel 1

Measuringchannel 2

InnoStreamMachine®

Organizes and optimizes data streams between sensors and instruments

25 mm/s

13 m/s²

12 µm

Sensor 1

Sensor 1

Sensor 2

Innomic Data StreamFile allows additional subsequent research

Real-time displayedmeasuring values

Example for a 32 channel system

1, 23, 4

31, 32

PC USB-Hub 1

USB-Hub 2

USB-Hub 3

USB-Hub 4

USB-Hub 5 29, 30

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9.Facts about VibroMatrix worth knowing

For channel synchronization certain properties of the USB interfaces are necessary. The InnoMaster RT automatically examines each interface and displays the result in the measuring channels list. All InnoBeamers, the channels of which can run synchronous-ly, are assigned to the same synchronization group. Depending on the PC architecture several synchronization groups can exist. InnoBeamers of different synchronization groups cannot exactly run synchronously. This is only ensured for InnoBeamers of the same synchronization group. In the measuring channels list, the label Sync 1, e.g., stands for the synchronization group 1. InnoBeamers which cannot be synchronized to any other InnoBeamer are not assigned to a synchronization group and have no subse-quent sync label. This sometimes occurs, when the InnoBeamers are connected directly to the computer. Using an external hub usually helps in this case and allows synchronous operation of all InnoBeamers connected to it.

Even if the InnoBeamers are not synchronized, nu-merous multi-channel measurements can be conduct-ed. The time lag usually still lies below one second. Only those measurements, which depend on synchro-nization faithful to the sample, are not possible.

The two measuring channels of an InnoBeamer have a time offset of 50 µs due to the multiplex operation. An even smaller time lag (below 1 µs) can be ob-tained, if the corresponding channels (e.g. the first channels) of several synchronized InnoBeamers are used for the measurement.

9.2. Licensing software in VibroMatrixThe software instruments of VibroMatrix are especially suited for compiling an individ-ual measurement system. Each instrument can work stand-alone. You use your budget efficiently because you only purchase the specialized instruments you need for your measurement tasks.

During VibroMatrix installation, all instruments are installed as well. Still, you need keys to activate them. These keys are administrated in the InnoBeamer. This is especial-ly convenient as several members of your team can install VibroMatrix on the computer unhampered. The InnoBeamer (which is required anyway) also provides the user who carries out the measurement with all necessary software licenses.

An instrument can be registered on a measuring channel permanently. But there is also the much cheaper possibility to register it for a limited time period only. In this case, only the used time is deducted similar to the use of prepaid cards for mobiles. Non-used units do not expire. Per upload, 240 time units of 10 minutes each are available. Thus the instrument can be used for maximum 40 hours. One unit is deducted each time the instrument is started. If the units are not completely used up, the actual period of use will be less than 40 hours.

All described procedures work without extra dongle or Internet connection. Thus you can test new instruments or add rarely used special instruments to your pool of instru-ments (page 23) at minimum expenses.

When purchasing VibroMatrix for the first time, the purchased instruments are already activated in the InnoBeamer when delivered. When extending VibroMatrix, you will re-

Licensing software in VibroMatrix160

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9.Facts about VibroMatrix worth knowing

ceive the required keys via e-mail from your VibroMatrix dealer. Uploading them into the InnoBeamer is described in in chapter 5.3 on page 23.

On the contrary, all instruments can be used without activating them in the InnoMaster RT Trainer. Here you can test the handling and capabilities of the instruments before purchasing them.

Channel concept and clone functionLet us have a look into world of traditional measurement equipment. You want to mea-sure an electrical voltage at two different places. So you need two voltmeters. It is the same with VibroMatrix. If you want to measure vibration at two points, you need soft-ware licenses for two measuring channels. Purchasing several instruments comes along with attractive quantity discounts. Details can be found in the price list.

Let us go back to the voltmeter example. You want to measure voltage and current at the same time. Respectively, you have to switch the voltmeter – or purchase a second one if want to read of both measurands simultaneously. VibroMatrix is advantageous when it comes to this 'problem': By means of the clone function (page 31), you can dis-play more than one measurand for the same point, although you only purchased the in-strument once.

If you purchase an instrument for one measuring channel, you can start it up to 4x, for instance in order to display different measurands simultaneously. You can allocate the instruments freely between the chan-nels for which it is registered. For example: If you registered an instrument for two channels, you can also open it 6x for channel 1 and 2x for channel 2. The number of available instrument windows is indi-cated in the instruments' list after the instrument entry. For instance (0/16) means: no instrument window out of sixteen possible ones is opened.

Licensing software in VibroMatrix161


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