873 I_O Manual (2)

Instruction manual 873 SmartRadar Page 1

Instruction manual 873 SmartRadar

Version: 2.0April 1998Part no.: 4416.571

Enraf B.V.P.O. Box 8122600 AV DelftThe Netherlands

Tel.: +31 15 2698600, Fax: +31 15 2619574Email: [email protected]://www.enraf.com

Offices in: The Netherlands - France - Germany -Russia - UK - USA - China - Singapore

Copyright 1998 Enraf B.V. All rights reserved.

Reproduction in any form without the prior consent of Enraf B.V. is not allowed. This manual is forinformation only. The contents, descriptions and specifications are subject to change without notice. EnrafB.V. accepts no responsibility for any errors that may appear in this manual.

The warranty terms and conditions for Enraf products applicable in the country of purchase are availablefrom your supplier. Please retain them with your proof of purchase.

Preface


PrefaceThis manual is intended for technicians involved in the commissioning and service of the Enraf series873 SmartRadar gauge.

A description preceding the technical procedures gives the technical information necessary to understand itsfunctioning. It is recommended to read this description prior to performing any of the procedures.

For installation of the 873 SmartRadar, please refer to the Installation guides of the 873 SmartRadarAntenna, Antenna Unit, and Control Unit. This manual describes the commissioning and service of the basic 873 SmartRadar level measurement. Other features such as level alarms, verification pin compensation,temperature measurement (spot or average), analog level output and pressure measurement are describedin separate manuals. For an overview, refer to the list of related documents in appendix E.

Legal aspects

The information in this manual is copyright property of Enraf B.V., the Netherlands. Enraf B.V. disclaims anyresponsibility for personal injury or damage to equipment caused by:

Deviation from any of the prescribed procedures Execution of activities that are not prescribed Negligence of the safety regulations for handling tools and use of electricity

EC declaration of conformity

This instrument is in conformity with the protection requirements of EC Council Directive 89/336/EEC.The CE conformity marking fulfills the provision of

EN 50081-2 Generic Emission StandardEN 50082-2 Generic Immunity Standard

when installed, maintained and applied according to requirements as specified in this manual.

Additional information

Please do not hesitate to contact Enraf or its representative if you require any additional information.

Table of contents

Page 4

Table of contentsPreface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51.1 Principle of measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51.2 Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61.3 Optional functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81.4 Remote monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81.5 Approvals (FM, Cenelec) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .92.1 Safety aspects of the 873 SmartRadar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92.2 Personal safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92.3 Safety conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

3 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113.1 Checks before starting the commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113.2 Introduction in programming the 873 SmartRadar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113.3 Programming the gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

3.3.1 Selecting dimension and decimal separator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143.3.2 Level start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153.3.3 Level check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173.3.4 Zones and threshold settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183.3.5 Alarm settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233.3.6 Ullage readout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 243.3.7 Display control and password protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253.3.8 Detection algorithm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 263.3.9 Additional adjustment with measurement on stilling well . . . . . . . . . . . . . . . . . . . . . . . 28

4 Operation display Control Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

5 Service and trouble shooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 325.1 Control Unit layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 325.2 The instrument covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 335.3 Min max diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 335.4 Alarm loop checking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 345.5 Error codes and status information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

5.5.1 XPU-2 error code (item EP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 355.5.2 APU warning code (item WC), error code (item EE) and status request (item QR) . . . 365.5.3 Error code Antenna Unit (item EB) and status request (item QH) . . . . . . . . . . . . . . . . 37

5.6 Updating software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Appendix A Article and part numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40Appendix B ASCII table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43Appendix C Display formats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44Appendix D PCB layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49Appendix E Related documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51

Introduction


1 IntroductionThe Enraf 873 SmartRadar is a radar based level gauge. It is designed to accurately and reliably measurethe product level in large storage tanks.

The SmartRadar has four programmable level alarms, and also provides diagnostic information. This information can be displayed on the internal display, the Portable Enraf Terminal (PET) as well as onremote systems.

The MPU optional board provides a 4 - 20 mA analog level output and can be used to adapt the 873SmartRadar for control applications or analog recorders.

Spot temperature can be measured when the 873 SmartRadar is equipped with an optional TPU-2 board(Temperature Processor Unit), or HSU board (HART and Spot processor Unit).

Average product temperature, as well as average gas temperature measurement can be performed whenthe 873 SmartRadar is equipped with the optional MPU, HPU, or OPU board and an 862 MIR or 862 MIT box(refer to the applicable 862 manual).

Honeywell ST3000 series pressure transmitters can be connected via the optional OPU board.Via the optional HPU or HSU board, HART compatible pressure transmitters and/or a HART compatibleTM TMwater bottom probe can be connected.

1.1 Principle of measurement

The radar level gauge is a device that uses high-frequency (10 GHz) electromagnetic waves to determinethe distance from the radar antenna to the product surface.The electro-magnetic wave is sent into the tank and reflected by the product.As an electro-magnetic wave travels with the speed of light, this measurement can not simply be done on thebasis of time of flight. Instead, the phase difference between the transmitted and the received signal ismeasured. The corresponding travelled distance can then be calculated from this phase relation.This measurement principle is known as synthesized pulse radar (SPR).

In the 873 SmartRadar the microwave signal is generated in the Antenna Unit (refer to fig. 1.1).After generation this signal is led, via the tank separator, to the Antenna.The radar antenna shapes the beam and sends the signal into the tank. The microwave signal reflected fromthe product is then received by the same radar antenna. The digital electronics in the Antenna Unit measureboth the transmitted and the reflected signal.After processing, the digital data is transmitted to the Control Unit. In the Control Unit the measured distanceis converted into level data (innage or ullage) and made available for field communication.

Introduction

Page 6

Figure 1.1 873 SmartRadar configuration

1.2 Configurations

The 873 SmartRadar consists of two parts:

the Control Unit and the Antenna Unit

The Antenna is coupled to the Antenna Unit via the tank separator device. The tank separator provides foradequate isolation between the tank contents and the electronics in the Antenna Unit.

Depending on the application, different antennas and tank separators are to be used.The Antenna Unit and Control Unit are universal parts; they can be used with any type of antenna, except forthe high pressure version antennas.

Item Description Item Description

1 Control Unit 3 Tank separator

2 Antenna Unit 4 Antenna

For radar level measurement, tanks can be divided into 3 groups:

Fixed roof tanks, stilling well tanks, and spheres (high pressure applications)

Figure 1.2 gives an overview of the installation on the different tank types.

Introduction


Figure 1.2 Installation overview

Introduction

Page 8

1.3 Optional functions

Optional functions can be added in the Control Unit, when using one optional board from the Enraf 854family (TPU-2, MPU, HPU, OPU, or HSU board). Alarm relays are optionally available on the APU board(Antenna Processor Unit). All these boards are located in the Control Unit.The table below gives an overview of all options and related manuals.

Option Board Refer to

Level alarm output relays APU Instruction manual APU Hard alarm output contacts(or digital outputs) (4416.579)Analog level output (4 - 20 mA) MPU Instruction manual MPU analog 4 - 20 mA

(4416.222)Spot temperature measurement TPU-2, Instruction manual TPU-2 / HSU option board

HSU (4416.253)Average temperature measurement MPU, Instruction manual 862 MITvia 864 MTT & 862 MIT HPU, (4416.231)

OPU

Average temperature measurement MPU, Instruction manual 862 MIRvia 863 MRT & 862 MIR HPU, (4416.230)

OPU

Pressure measurement for mass, HPU, Instruction manual HIMSdensity and/or vapour pressure HSU (4416.241)via HART protocol

Pressure measurement for mass, OPU Instruction manual HIMSdensity and/or vapour pressure (4416.241)via Honeywell DE protocol

Water bottom measurement HPU, Instruction manual Water bottom measurementvia external HART probe HSU via capacitive probe

(4416.595)RS-232C / RS-485 communication XPU-2 Instruction manual XPU-2 option RS-232C / RS-485

(4416.237)

1.4 Remote monitoring

Central monitoring of the SmartRadar is possible via tank inventory systems such as ENTIS+.Remote display can be achieved using the 877 FDI field indicator or the 878 CPI panel indicator.

1.5 Approvals (FM, Cenelec)The Enraf 873 SmartRadar is an explosion proof instrument, which is designed to meet requirements ofCENELEC, Factory Mutual, and others. Measuring performance and data handling protocol meet W&Mrequirements.

Safety


CautionThe 873 SmartRadar is an explosion proof instrument with intrinsically safe output/input circuits.

Modification to the instrument may only be carried out by trained personnel which is authorised by Enraf.Failure to adhere to this will invalidate the approval certificate.

WarningIn hazardous areas it is compulsory to use personal protection and safety gear such as:

hard hat, fire resistive overall, safety shoes, safety glasses and working gloves.

Avoid possible generation of static electricity. Use non-sparking tools and explosion proof testers.Do not open any of the instrument covers while power is still connected.

Never start working before the work permit is signed by all parties.

Pay attention to the kind of product in the tank. If any danger for health, wear a gas mask and take allnecessary precautions.

2 Safety

2.1 Safety aspects of the 873 SmartRadar

The housing of the 873 SmartRadar is explosion proof:

EEx de IIB T6 according to CENELEC, certified KEMA no.: Ex-95.C.8026 X Class I, Division 1, Groups B, C and D, according to NEMA Type 4, certified FM no.: 2Z5A6.AE

(3610/3615)

The covers of the Control Unit and Antenna Unit are provided with blocking facilities which preventunauthorised opening.

Programming the 873 SmartRadar can be done by the 847 PET (Portable Enraf Terminal), which is anintrinsically safe device and is connected to the SmartRadar via an infra-red coupling.

The emitted microwave energy is far below the accepted limits for exposure of the human body to microwaveradiation. Depending on the type of antenna, a maximum radiation of 0.03 mW/cm is generated.2

2.2 Personal safety

The technician must have basic technical skills to be able to safely commissioning the equipment. When the873 SmartRadar is installed in a hazardous area, the technician must work in accordance with (local)requirements for electrical equipment in hazardous areas.

Safety

Page 10

2.3 Safety conventions

"Warnings", "Cautions", and "Notes" have been used throughout this manual to bring special matters to theimmediate attention of the reader.

A Warning concerns danger to the safety of the technician or user A Caution draws attention to an action which may damage the equipment A Note points out a statement deserving more emphasis than the general text, but not requiring

a "Warning" or "Caution"

Commissioning


3 Commissioning

3.1 Checks before starting the commissioning

Examine the mechanical and electrical installation after the 873 SmartRadar is installed on the tank.

Check that the mains voltage selector in the Control Unit is set for the correct mains supply Check the connections of all electrical cabling Check that all ground connections are made Check that non-used cable inlets are sealed with appropriate blind plugs Close all covers carefully (mind O-ring and gasket) before any electrical power is applied

3.2 Introduction in programming the 873 SmartRadar

The item concept

The 873 SmartRadar gauge is a field-configurable multi-processor instrument. This means that theinstrument can be totally programmed out in the field, or remotely, without opening the gauge.All parameters, settings, etc. are accessible either via the PET (Portable Enraf Terminal) or remote viaso-called items. These items all have unique 2-letter abbreviations which allow easy access andprogramming.

There are three different type of items:

Type of item Description

Commands Example: EX (exit). After the EX command, the instrument starts initialising andThese will force the gauge to execute a special task or function.

modified NOVRAM settings become active.

Data requests Example: JS will return the jumper setting on the XPU-2 board. Some of the dataItems for request of setup or measuring data from the gauge.

items are read-only.

NOVRAM Settings down, are stored in NOVRAM. The NOVRAM is a non-volatile RAM memory whichAll parameters which can be programmed and should not be lost after power break

does not require battery back up.

Data stored in NOVRAM can be protected by a password or by the Weights & Measures (W&M) jumper(refer to figure 3.1).

Protection levels are provided for all NOVRAM items, depending on the importance of an item. Protectionlevel 2 is protected by password 2 (W2) and protection level 1 is protected by password 1 (W1).If the NOVRAM is protected by the W&M jumper (jumper J3), level 2 data cannot be changed withoutopening the gauge. Most data requests and commands are not password protected.

Protection level 1

Access to items which are not directly measurement related data, such as high level alarm (HA), tankidentifier (TI), etc. is protected by password 1 (W1). It is possible to modify these data only after entering thecorrect level 1 password W1=XXXXXX, where XXXXXX is the level 1 password.Password W1 itself can be read protected means of jumper J1 on the XPU-2 board.

Commissioning

Page 12

Figure 3.1 Jumpers on XPU-2

Protection level 2

All NOVRAM items which affect the (remote) level reading (such as reference level (RL) or transmissionaddress (TA)) are protected by password 2 (W2). It is possible to modify these data only after entering thecorrect password W2=XXXXXX , where XXXXXX is the level 2 password. Additional measurement-relateditems, such as temperature items can also be protected by password 2.Password W2 itself can be read protected by means of jumper J2 on the XPU-2 board.In protection level 2, the items which resides under protection level 1 can be also modified.

Figure 3.1 shows the jumper position on the XPU-2 board.The table below gives an overview of the XPU-2 jumperfunctions.

jumper function position 0 position 1J1 read password 1 not protected protected

J2 read password 2 not protected protected

J3 W&M protection disabled enabled

J4 J6 no function x x

Indexed items

In general, items have only one setting (i.e. HA+026.0000). Indexed items have more than onesetting (elements). For instance: item OS (obstruction zone start position). Item OS has ten elements,corresponding with the ten programmable obstruction zones.

OS OS OS OS OS OS OS OS OS OS

element 0 element 1 element 2 element 3 element 4 element 5 element 6 element 7 element 8 element 9

Indexed items are requested by the two-character item name, followed by the element number and numberof elements to be requested, separated by dots.In general:

XX.n.iwhere: XX = two-character item name

n = element number (starts with 0)i = number of elements (can be 1 or more, but maximum is 9)

For example:OS.0.1 requests the first obstruction zone start position;OS.1.1=+012.3400 programs the second obstruction zone start position.

Note:Although it is possible to program more than one element at the time, it is not recommended. To avoidmistakes, program only one element at the time.

Commissioning


3.3 Programming the gauge

The 873 SmartRadar is pre-programmed at the factory. Depending on the application, a number ofadditional parameters have to be set.

Note:The items described in this section are typical for the basic 873 SmartRadar.For the optional functions / boards such as: level alarm relay outputs, verification pin compensation, spottemperature measurement, average temperature measurement, analog level output and HIMS (Hybrid Inventory Management System) please refer to the applicable option manuals.

Step 1: Collect the required data (such as radar position height, maximum safe fill height,alarm settings, etc) on a piece of paper. Refer to 'Commissioning form 873SmartRadar' supplied with each gauge.

Step 2: Proceed with programming / checking off each item for the standard gaugewithout optional functions (level start-up, zones / thresholds, alarm settings anddisplay control).

Step 3: Check the identification code on the label of the 873 SmartRadar to determinewhether the gauge is equipped with one or more optional functions, and programthe items for these options.

In the following sections, the items are listed which as a minimum should be programmed (checked) duringcommissioning of the level part of the SmartRadar. Commissioning is divided into the following steps:

Step 1 Selecting dimension and decimal separator (section 3.3.1)Step 2 Level start-up (section 3.3.2)Step 3 Level check (section 3.3.3)Step 4 Zones and threshold settings (section 3.3.4)Step 5 Level alarm settings (section 3.3.5)Step 6 Ullage readout (section 3.3.6)Step 7 Display control and password protection (section 3.3.7)Step 8 Options (refer to the option manual(s) of the installed options)

Commissioning

Page 14

3.3.1 Selecting dimension and decimal separator

When one or more dimension items are changed, all items with related formats will be automatically changedand the values will be automatically converted to the new dimension. The same applies for the decimalseparator. The SmartRadar can be completely programmed in another dimension than it is intended tooperate in. Just change the item LD (and any other dimension items).

Item Name Description

W2= Protection level 2 Enter protection level 2 (default password: ENRAF2)

LD= Level dimension Selects and converts the level dimension. This item containsone character, which can be:M : metres; format: sign X X X separator X X X XF : feet; format: sign X X X X separator X X XI : inches; format: sign X X X X X separator X XP : fractions; format: sign X X ' X X " XX

DP= Decimal separator The item DP (decimal separator) can be:. : point or, : comma.

EX Exit Exit protection level

Standard formats

There are two units which have a standard format. These units and there formats are:

Standard floating point format: sign point M M M M M M M M E sign P P Standard power format [dB]: sign X X X X point X

where: M = mantissaP = exponentX = value in decibel

Commissioning


Figure 3.2 Level start-up tank parameters

3.3.2 Level start-up

Refer to figure 3.2 for level start-up tank parameters.

To get the level from the gauge without any compensation enabled, only the following items should beprogrammed.

If the 873 SmartRadar is equipped with a stilling well antenna model, item BD should be programmed. In allother cases skip this item and start from item OM.

Commissioning

Page 16


W2= Protection level 2 Enter protection level 2 to alter the required settings.

BD= Stilling well diameter Floating point format; units: metres. This item contains theinternal diameter of the stilling well (only if the SmartRadar isinstalled on a stilling well).

OM= Radar operational mode This item contains one character, which determines theoperational mode and depends on the antenna.F for free space measurement;S for stilling well measurement;

PR= Position radar Format according to item LD.This item represents the distance from the bottom side of themounting flange to the tank zero (datum plate). When notexactly known, estimate the distance within 1 metre (3 ft).When setting the SmartRadar reference level (see section3.3.3), the value in item PR is overwritten.

SF= Maximum safe fill height Format according to item LD. With this item the gauge checks ifthe programmed upper measuring range is valid. If a conflict isdetected, a warning is given (EE: 07901).

4V= Level calc. decision switch Use only with AdvancedDSP software (APU A2.0 or higher).This item contains 10 positions. The 7 position enables (orthdisables) the AdvancedDSP routines:F enables AdvancedDSP level calculation- disables AdvancedDSP level calculationRefer to section 3.3.8 for W&M required settings in item 4V.

For remote transmission of the 873 SmartRadar data to a host system or external indicator, items TA andTI need to be programmed and items GT and TS should be checked for correct settings.

TA= Transmission address The transmission address identifies the gauge on the Enraf2-wire field bus. Each gauge sharing the 2-wire field bus has aunique address, and hence TA must be programmed differently.When connected to a 858 CIU, please bear in mind that the 858CIU has three highways, containing the following gaugeaddresses:

CIU highway Transmissionaddress (TA)

TL 1 00 - 29TL 2 30 - 59TL 3 60 - 99

TI= Tank identifier 6 Character, program the tank name into TI (spaces are notallowed).

GT= Gauge type 1 Character. GT represents the type of instrument.For 873 SmartRadar, GT=B.

TS= Transmission speed TS=1200 (default) or TS=2400 baud.

EX Exit After the exit command, the 873 SmartRadar will perform acontrolled software reset, and start up in no protection level.

Commissioning


Example:Tank 102 with an 8" stilling well and the height of the stilling well flange is at 18.965 m. The maximumsafe fill height is equal to 17.5 metres. The gauge is connected to CIU highway TL1 and the address ischosen as 02. The level dimension is metres. The gauge should be programmed as follows:

Item (+ setting) Description

W2=ENRAF2 Enter protection level 2 (ENRAF2 is default level 2 password).BD=+.20240000E+00 Internal diameter of 8", Sch 40 pipe 202.4 mm.OM=S Check if item OM is set correctly for stilling well mode.PR=+018.9650 Mounting flange height of 18.965 m.SF=+017.5000 Maximum safe fill of 17.5 m.4V= - - - S - - F - - - The character F on the 7 position enables the AdvancedDSP.thTA=02 Transmission address equals 02.TI=TK-102 Tank identifier.GT Check whether this item is correct; if not, change it. TS Check whether this item is correct; if not, change it.EX Exit protection level 2.

3.3.3 Level check

Refer to figure 3.2. Check if there is a valid level reading. It is no problem if the value is incorrect, as long asthere are no error status messages. Two common error status messages are discussed below.1) Level reading 999999999 with level status FL. Check error code item EE (this is an indexed item!).

If EE reads 07901, the maximum safe fill height (item SF) is set too high. Request for the Antennaminimum ullage (item AU). The following relation is valid: SF + AU < PR.Either distance PR is not correct or the maximum safe fill height (SF) is too large for this installation.

2) If there is a Warning code present, check warning code item WC (this is an indexed item!).If WC reads 07000, the reflected signal is not so strong that its peak rises above a threshold setting.Lower the product zone threshold (or another zone threshold where the peak is found). Refer to section3.3.4 for more information on zones and thresholds.



RL= Reference level Format according to item LD. The reference level is the actuallevel in the tank (obtained from e.g. manual dip)

EX Exit With the exit command, the actual level value in item RL iswritten in NOVRAM. Only then the value of item RL will be usedwith the next AR command


CM Commissioning mode Enter the commissioning mode to accept the reference level

AR Accept reference With this command, the 873 SmartRadar accepts the value ofthe reference level and internally re-calculates the distance:radar position (item PR). After the controlled XPU-2 reset, bythe EX command, the level reading is available.


With this procedure, the level value, given in item RL, will now be shown on the display of the Control Unit.

Commissioning

Page 18

CautionAny reflection in the area "Antenna Minimum Ullage" is ignored.

Therefore, the maximum safe fill height (item SF) must be outside the minimum ullage area.

Figure 3.3 Zones and thresholds

3.3.4 Zones and threshold settings

The tank height is divided into 3 measuring zones: Antenna zone, Product zone and Bottom zone.In addition, ten obstruction zones can be programmed. Refer to figure 3.3.

Please note that the X-axis from figure 3.3 indicates ullage. The zero point on the X-axis represents the"radar zero point". This is the nozzle height, with respect to the tank zero, on which the antenna is mounted(item PR; position radar).

The antenna is located inside the antenna minimum ullage area. In this area, reflections from the antennawill decrease to almost zero at 0.5 to 2 metres distance from the antenna surface (depending on the typeof antenna).

Figure 3.4 shows a so-called reflection diagram.The reflection diagram can be made with the Enraf service program ENSITE.

The antenna zone length (item AZ) covers the area where antenna reflections are low but still present. In thisarea product reflections are only detected when they are above the antenna zone threshold (item ZA).

90

80

70

60

50

40

30

20

10

0

RB

ZA

ZB

0 2 4 6 8 10 12 [m]

ZP

Antenna zonethreshold

Product zonethreshold

Productreflection

Bottom zonethreshold

14

TI : TK-200SmartRadar Refl. Diagram.[dB]

08-11-1996 12:31BA417-1899001-D0

: TK-20000.RD3:.18739640023

FileSN

7.450

TankZero

Min. UllMax. SF.

Commissioning


Figure 3.4 Reflection diagram

All antenna reflections in the antenna zone should be below the antenna zone threshold. The antenna zonelength does not need to extend till the antenna reflections are completely zero; only until the higherreflections are covered, such as those which might be expected in the product zone. Refer to example ofreflection diagram in figure 3.4.

The area between antenna zone length and the bottom zone is called "product zone". The product zonethreshold can be set with item ZP.

The bottom zone has a fixed length of 0.3 m towards the product zone and extends to the maximummeasuring length. Initially, the bottom zone is set with respect to tank zero. With bottom zone offset (item BZ)an offset can be given for the difference: tank zero - tank bottom.If the tank is empty, the steel tank bottom may cause a reflection that should be covered by the bottom zone.However, if there is a low level in the tank, which enters the bottom zone, the bottom zone threshold shouldbe low enough to detect a product reflection. Due to the different software routines in the bottom zone, theSmartRadar will detect the first peak from the antenna as product level, rather than the highest one(which will most likely caused by the steel tank bottom). The bottom zone threshold can be set with item ZB.

Changing the settings for the zones and thresholds should be done, on the basis of information from areflection diagram. Refer to manual of the ENSITE service program, for a description how to obtain areflection diagram. Weak product reflections can be measured by lowering the product zone threshold, whilelarge antenna reflections can be covered by extending the antenna zone length and/or altering the antennazone threshold.

It should be common practice at installation of the 873 SmartRadar gauge to make a reflection diagram and,if necessary, adjust the zones and threshold settings.

90

80

70

60

50

40

30

20

10

0

RB

ZA

ZB

0 2 4 6 8 10 12 [m]

ZP

Productreflection

14

TI : TK-200SmartRadar Refl. Diagram.[dB]

08-11-1996 12:32BA417-1899001-D0

: TK-20006.RD3:.18739640023

FileSN

10.443

TankZero

Min. UllMax. SF.

OE.0.1OS.0.1

OT.0.1

Commissioning

Page 20

Figure 3.5 Example of determining the position and threshold of an obstruction zone


W2= Protection level 2 Enter protection level 2

AZ= Antenna zone length Format according to item LD. If necessary, the antenna zonelength can be altered

BZ= Bottom zone offset Format according to item LD. As a default, the bottom zonestarts 0.3 m above tank zero. Item BZ specifies this startposition. If the bottom position is not exactly known, do not alteritem BZ

ZA= Antenna zone threshold Format according to standard power format (dB). If required, thethreshold of the Antenna zone can be altered with this item. Besure to set the threshold above the antenna reflections

ZP= Product zone threshold Format according to standard power format (dB). If the productreflection is weak, the threshold from the product zone can be lowered with this item. It is recommended to set the thresholdnot lower than 20 dB

ZB= Bottom zone threshold Format according to standard power format (dB). The thresholdof the bottom zone should be set to cover the reflection from thebottom. Normally, this can be detected when the tank is empty.If the tank cannot be emptied, this item can be left at the defaultvalue


Commissioning


If there are any obstructions (e.g. heating coils) in the microwave path, an obstruction zone can be defined tomask the reflection from the obstruction. The position of the obstruction zone and its threshold can bederived from the reflection diagram. The ullage and amplitude of a maximum of 25 detected peaks can alsobe read in items 5D (position of detected peaks) and 5E (amplitude of detected peaks).

Figure 3.5 shows a Reflection Diagram in which an obstruction is found at approximately 8 m level(6.25 m ullage). The product reflection is found at approximately 3.8 m level.

In this example, the following settings should be selected:

Obstruction zone start at 5.95 m ullage (at least 0.3 m before the obstruction reflection).Obstruction zone end at 6.55 m ullage (at least 0.3 m after the obstruction reflection).Obstruction zone threshold at 35 dB (approximately 4 dB higher than the obstruction reflection).



OS.0.1= Obstruction zone 1 start Format according to item LD.In the above example, obstruction zone 1 start should beprogrammed as 5.95 m (OS.0.1=+005.9500)

OE.0.1= Obstruction zone 1 end Format according to item LD.In the above example, obstruction zone 1 end should beprogrammed as 6.55 m (OE.0.1=+006.5500)

OT.0.1= Obstruction zone 1 threshold Format according to standard power format (dB).In the above example, the threshold of obstruction zone 1 is setat 35 dB (OT.0.1=+0035.0)

OZ= Enable / disable obstr. zones Ten ASCII characters; either E (enable) or D (disable) theobstruction zone. For example: OZ=EDDDDDDDDDenables the first obstruction zone


When obstructions (for instance: welding seams from the tank shell or stilling well, or roof truss) are causingreflections which remain below the product zone threshold, they should still be marked as an obstructionzone. This is only valid with the AdvancedDSP software (APU A2.0 and higher).

Obstructions from welding seams can be recognized as they appear at regular intervals. Refer to figure 3.6.Select the peaks in the reflection diagram, which are known to be caused by an obstruction.Mark the obstructions with an obstruction zone. The length of the obstruction zone should be at least 0.6 m.For the AdvancedDSP level calculation, the obstruction threshold should be set well below the productthreshold (e.g. at 10 dB).

If there is a strong reflection in the bottom zone (caused by the bottom), this reflection should also be markedwith an obstruction zone. It is recommended to start this obstruction zone 0.5 m before the tank zero and letit end 2 m beyond.

90

80

70

60

50

40

30

20

10

0

RB

ZA ZB

0 2 4 6 8 10 12 [m]

ZP

14

TI : TNK-42SmartRadar Refl. Diagram.[dB]

15-01-1999 12:57BA417-1899001-D1

: TSS_032.RD3:.18739717004

FileSN

9.804

TankZero

Min. UllMax. SF.

OT2OT0 OT1 OT3

Commissioning

Page 22

Figure 3.6 Reflection diagram with obstructions marked for AdvancedDSP

The reflection diagram in figure 3.6 shows three obstructions at equal distances. It can therefore be assumedthat there is a fourth peak (at approximately 11 metres ullage), though not visible in this diagram. For a clearoverview of all obstructions, it is recommended to make a reflection diagram when the tank is empty.

Reflections in the first three metres of the diagram are antenna reflections, decreasing in signal strength.The real obstructions are masked with an obstruction zone. An additional obstruction zone is defined aroundthe tank bottom. All obstructions zones must be enabled in item OZ.

Commissioning


Figure 3.7 Alarm settings

3.3.5 Alarm settings

Refer to figure 3.7. High level alarm (HA) and low level alarm (LA) conditions are transmitted to the host viathe Enraf 2-wire field bus.



AH= Level alarm hysteresis Format according to item LD. Sets alarm hysteresis

HA= High level alarm Format according to item LD. High level alarm set point.

HH= High high level alarm Format according to item LD. High high level alarm set point.

LA= Low level alarm Format according to item LD. Low level alarm set point.

LL= Low low level alarm Format according to item LD. Low low level alarm set point.


Commissioning

Page 24

Figure 3.8 Upper reference value

3.3.6 Ullage readout

The two items described in this section need only be programmed, when ullage readout is required.Refer to figure 3.8.



UR= Upper reference Format according to item LD.The upper reference value is only used when 'Ullage' is tobe read from the 873 SmartRadar gauge. The ullage is thencalculated as: UR - 873 measured level

DE= Level type One ASCII character.DE = I for innage (default setting)DE = U for ullage


Commissioning


3.3.7 Display control and password protection



DF= Display format DF selects the default display format:A : level, temperatureB : levelC : average gas temperatureD : average product temperatureE : HIMS densityF : pressure P1H : pressure P3J : analog outputK : water level from external HART probe

DG= Tenth millimetre selection DG=Y for tenth millimetre indication;DG=N for millimetre indication

DJ= Zero format The number zero on the display of the Control Unit can berepresented by the number 0 (an "0" with "slash"), or by thecapital letter "O". Default is the zero with slash

W1= Password 1 6 Characters, default value W1=ENRAF1. This password isread protected by jumper J1 on the XPU-2 board. If this jumperis set to position 1, the password can not be read

W2= Password 2 6 Characters, default value W2=ENRAF2. This password isread protected by jumper J2 on the XPU-2 board. If this jumperis set to position 1, the password can not be read


Commissioning

Page 26

Figure 3.9 Decision tree

3.3.8 Detection algorithm

Figure 3.9 illustrates how the decision is made to detect the product reflection.

The first step is to search for the highest peak in all three zones (antenna-, product-, and bottom zone).If the highest peak is found in the antenna zone or in the product zone, that peak is selected as possibleproduct peak.

If the highest peak is found in the bottom zone, the next step is to search for peaks in front of the highestpeak in the bottom zone. If a smaller peak is found, that smaller peak is selected as possible product peak.

Commissioning


A strong bottom reflection can be present with white products. The search for a smaller peak in front of thepeak in the bottom zone is then extended to all zones. This is enabled by the selecting the character Pin the 5 position of item 4V.th

Next, the possible product peak position (ullage) is compared with the peak position of the previousmeasurement. If the peak of the previous measurement is found within a window defined by item 5R,the selected peak is accepted as product peak.If the peak is not found within this window, the last valid peak is used as product peak. This situation ismaintained for a number of measurements, specified in item 5Q. If the peak is still not found, the window isenlarged, and the peak search continues until a valid peak is found.

Selection of reduced accuracy

Item 4V selects under which conditions a reduced accuracy is signalled in the level status and on the display. The selections to give a reduced level accuracy may be required in W&M-approved applications. Reducedaccuracy can be selected if the product peak is:

in bottom zone in obstruction zone above maximum safe fill when SmartRadar was reset before the relation normal level / AdvancedDSP level is established



4V= Level calc. decision switch Ten ASCII characters; default setting: - - - - - - - - - - .Pos. Char. Function 1 B Reduced accuracy if level peak in bottom zone

- No reduced accuracy if level peak in bottom zone 2 O Reduced accuracy if level peak in obstruction zone

- No reduced accuracy if level peak in obstruction zone 3 - Not used 4 S Reduced accuracy if level peak detected above the

maximum safe fill height (item SF) - No reduced accuracy in this situation

5 P Enables enhanced level detection (for correct peakdetection near bottom zone when a strong bottomreflection is present)

- Normal peak detection 6 - Not used 7 F Enables AdvancedDSP level calculation

- Normal level calculation 8 1 Select smaller bandwidth for FCC units

- No special selection 9 X Reduced accuracy if gauge was reset before the relation

between normal level and AdvancedDSP level isestablished

- No reduced accuracy in the above mentioned situation 10 - Reserved for factory testing; do not change from default

setting.


Commissioning

Page 28

Figure 3.10

Sign ofscale error

3.3.9 Additional adjustment with measurement on stilling wellThe propagation speed of the microwave, and hence the level measurement, depends on the inner diameterof the stilling well. The smaller the diameter, the lower the propagation speed, resulting in a larger measuredradar ullage.Item BD holds the inner diameter of the stilling well. When the real value of the inner diameter differs fromthe setting in item BD, the SmartRadar has a gain error in the level measurement.

It is therefore recommended to check the level reading of the SmartRadar with some manual dips at differentstatic levels over the full operating range.

Note:After commissioning, the AdvancedDSP routines requires one complete measurement cycle over the fulloperating range, before the optimum accurate level reading is obtained.

A level gain error, when present, can be corrected in two ways:

ullage correction table adjustment of item BD

For the correction via the ullage correction table, refer to the description of items CW, CL and CS.

The correct value for the stilling well diameter can be calculated with the following equation:

where:

Antenna type a b

S06, S08, S10, S12 0.036568 0.0013372

H04 0.017568 0.0003086

BD : recalculated stilling well diameter [m]newBD : original stilling well diameter [m]orig : scale error (relative gain error)scale

example: 10 mm gain error on 20 m range: = 20 / (20 + 0.010) = 0.9995.scalefor the sign of the scale error, refer to figure 3.10. If is positive, the scale errorsign is positive; if is negative, the scale error sign is negative.

Commissioning


An example with an S10 antenna:Item BD is programmed as 254 mm.At 19 m level, the deviation of the SmartRadar level is: -2 mm;At 2 m level, the deviation of the SmartRadar level is: +3 mm.

Note:After the new stilling well diameter is programmed, the SmartRadar must be set to level with the RL andAR sequence.

Hence, the procedure to follow is:


W2= Protection level 2 Enter protection level 2 (default: ENRAF2)

BD= Stilling well diameter Recalculated stilling well diameter

RL= Reference level Reference level from manual measurement

EX Exit Exit protection level 2


CM Commissioning mode Enter commissioning mode to accept the reference level

AR Accept reference The reference level, given by item RL, will now be accepted asthe radar level

EX Exit Exit protection level 2

ENRAF

L

U

R

D

Operation display Control Unit

Page 30

Figure 4.1 Control Unit Display

4 Operation display Control UnitThe 873 Control Unit has an LCD display consisting of 2 rows of 16 characters each.On the display, one of several formats will appear, depending on the status of the XPU-2. Immediately afterpower on the display is blank. Once the power is stable for 20 seconds, the display will show its initializingmessage.

If the initializing of all processors is successful, the display will switch to its default display format, which isprogrammable with item DF (display format).

Display formats

The 873 Control Unit can be programmed for 9 different display formats (refer to item DF). These formatchoices are the same for the display format on the PET, which can be set by item PO.

A Level and temperature B Level C Average gas temperature D Average product temperature E HIMS density F Pressure P1 H Pressure P3 J Analog level output K Water level

Display contrast

Item CD allows the user to adjust the display contrast for maximum readability. CD can be set between 01and 16. Also, the display contrast can be adjusted by means of the hall switches.

Additional displays

Refer to figure 4.1.

There are four hall switches located on the display, marked: "L","R", "U", and "D".These switches can be operated by holding a magnet infront of them.

Switch "L" allows scrolling through several additionaldisplays. When an additional display is selected, furtherinformation can be requested by operating the otherswitches. After 3 seconds, the display switches back tothe standard display format (programmed by item DF).

The additional displays gives information on:

Display configuration NOVRAM item view XPU-2 error list System configuration Diagnostic view

Operation display Control Unit


The table below gives an overview of the additional display selections.

Function switch L Additional display, and function of other switches

1st Display configuration

R display test (blank test / dark test)U display contrast upD display contrast down

2 U previous display formatnd Display format toggle (formats A K)

D next display format

3rd NOVRAM item view (all items)

R fast forwardU previous itemD next item

4th XPU-2 error list (item EP)

R fast forwardU previous errorD next error

5 U previous itemth System configuration (items: GT, TA, TC, TH, TI, TS, WM)

D next item

6 U previous item th Diagnostic view (items: 00, 03, 0S, 0T, EI, EJ, EP, FA, FH, FM, FT, FX, PF, XS)

D next item

The steps of switch L can only be followed in the sequence as given in the table above.

Display scroll

The display can be configured to scroll automatically through all display formats. This is done by setting item3Z to enable.



3Z= Toggle display format With this item, the toggle display format function (display scroll) can beenabled or disabled. When enabled, all display formats are shown forapproximately 2 seconds.

E : enable toggle display format D : disable toggle display format


Appendix C provides an overview of the standard display formats.

Service and trouble shooting

Page 32

Figure 5.1 Control Unit

5 Service and trouble shootingThe 873 SmartRadar does not require preventive maintenance.

For mechanical and electrical installation details, refer to the installation guides of the Antenna, the AntennaUnit, and the Control Unit.

Depending on the application, the Antenna may over time become too contaminated for accurate levelmeasurement. This condition is then signalled by the built-in diagnostics of the 873 SmartRadar. The statusmessage 'C ' shows up on the display of the Control Unit (display format B) and a warning code (WC: 07001)is generated. In that case, the Antenna should be cleaned.

5.1 Control Unit layout

The Control Unit housing consists of two sections: the electronic compartment and the terminal compartment(refer to figure 5.1).

Item Description Description Item

1 Electronic compartment cover 6 APU board

2 7 Terminal compartment cover Backplane with mains transformer and mains selector

3 GPS board (supply board) 8 Infra-red connector

4 9 Cable entries (5 x / " NPT) Optional board (one of the following: TPU-2, MPU, HPU, OPU or HSU)

34

5 XPU-2 board with display

The electronic compartment can be accessed by removing (unscrewing) cover 1.The terminal compartment can be accessed by opening cover 7.

90

80

70

60

50

40

30

20

10

0

RB

ZA

ZB

0 2 4 6 8 10 12 [m]

ZP

14

TI : TK-560SmartRadar Min-Max Diagram.[dB]

08-11-1996 13:27BA417-1899001-D0

: TK-56002.MMD:.18739535005

FileSN

6.926

TankZero

Min. UllMax. SF.



CautionKeep screw threads free from dirt. Grease them lightly with an acid-free grease before closing the

instrument. When closing, turn the covers counter-clockwise until the thread clicks into place,then turn clockwise.

Figure 5.2 Example of min max diagram

5.2 The instrument covers

The Control Unit and Antenna Unit enclosures are water proof IP65. For this purpose, the covers in theControl Unit and Antenna Unit are fitted with O-rings.

Check the O-rings before closing the instrument.

5.3 Min max diagram

One of the features of the 873 SmartRadar is that the instrument keeps track of the measured reflections.The minimum and maximum product reflection, measured at each Fourier interval, is stored.Whenever a larger reflection is measured at a specific Fourier interval, the previous value is overwritten. Thesame is done for the minimum reflection value. In this way, a reflection history is present in the instrument.

The minimum and maximum reflection values can be retrieved by the ENSITE service program producing a so-called min max diagram. Figure 5.2 gives an example of a min max diagram.

In the example above, all measured product reflections are well above the product zone threshold.

However, if some of the minimum reflections where found just above or at the product zone threshold, this isa signal that the product zone threshold should be lowered (or the gain, item 5O, should be increased).

The memory of the min max diagram can be cleared with command CZ.


Page 34



CZ Clear min max diagram Clears all elements of item 4T by writing 30 in them (sets 4T toHdefault)

EX

5.4 Alarm loop checking

Normally, level alarms can be verified when the level reaches the low level or high level alarm set point.From APU software version A1.1, the level alarms and, if applicable, the hard alarm contacts coupled to thelevel alarms, can be checked by a loop check command. This is independent from the actual level value.

The level alarm signalling can be checked via several ways:

on the display of the Control Unit via the Enraf field bus to the host via the hard alarm output contacts via the RS-232C / RS-485 channel

When enabled, the alarm test (item AT) can be given. The specified alarm is then toggled for one minute. Item AT has 8 positions; four character pairs are used to specify the desired alarm for testing: HH, HA, LAand LL. Each alarm can be tested individually, or more of them may be tested simultaneously.


LE Loop check enable The loop check enable item enables or disables the alarm test with item AT.

E : enables alarm test with item AT D : disables alarm test with item AT

If the alarm test is required, check if item LE is set to E.If item LE is set to D, change the setting to E.

AT= Alarm test The alarm test item toggles the specified level alarm for oneminute. The setting for the alarms to be tested is as follows:

aabbccdd (8 ASCII characters)where:

aa : HH high high level alarm test - - no high high level alarm test

bb : HA high level alarm test - - no high level alarm test

cc : LA low level alarm test - - no low level alarm test

dd : LL low low level alarm test - - no low low level alarm test

For example:AT= - - HALA - -

toggles the high and low level alarm for one minute.Note:

When, as in the above example, a high and low alarm are toggled at the same time, the high alarmprevails over the low alarm on the Enraf field bus line and on the display. It is therefore recommended tocheck only one alarm at the time.



5.5 Error codes and status information

The 873 SmartRadar is an instrument with self diagnostics. Detected errors will be shown as statusinformation on the display (refer to appendix C), or can be requested by the 847 PET (Portable EnrafTerminal).

The following items contain the error codes of the processor boards:

EB Error request DAB board (Antenna Unit)EE Error request APU boardEP Error request XPU-2 boardWC Warning code APU board (not a real error, but a warning that the level may not be accurate)

These items contain an error (warning) code of the last error condition. The error codes can be read as longas the gauge is not reset.

Besides the error codes, data items from level, and optional functions such as temperature and analog leveloutput, contain one or more status bytes which also give valuable information. These bytes are readableASCII characters. However, most of them are bit coded. Appendix B contains an ASCII table for conversionof the status bits into the actual status.

An example for a bit coded status byte:one (of the) status byte(s) reads: F;written out in bits (refer to Appendix B): 0100 0110;(b7=0, b6=1, b5=0, b4=0, b3=0, b2=1, b1=1, b0=0).

Bit 7 is always a '0' and bit 6 is always a '1', to avoid 'control' characters.Look up the relevant status byte in this section (e.g. QR in 5.5.2) to determine the meaning of the bits whichare set to '1'. Only the bits set to '1' represent an actual status.

5.5.1 XPU-2 error code (item EP)The XPU-2 error code is a three-digit number. When the XPU-2 detected an error about a certain item, thatitem follows the error code, separated by a space.For instance: 067 LL : invalid level format in item LL.

Some XPU-2 error codes of item EP are listed below, with suggestions for solving the problem. For acomplete overview, refer to item help in the service program ENSITE.

000 No error014 NOVRAM operation error Set item 03 to@; Check all settings, there may be an error051 Unknown item Item not known to SmartRadar, check for correct item

056 Wrong protection level First enter protection level 1 or 2067 Invalid level format Check item LD, then give the setting in the correct level format075 Invalid density format Check item DI, then give the setting in the correct density format076 Invalid floating point format Give setting in correct floating point format (refer section to 3.3.1)082 Invalid password Give the correct password for W1 and W2089 Invalid pressure format Check item PI, then give setting in the correct pressure format101 Watchdog reset error The watchdog reset is a sign that there is a serious fault, caused by

interference, or a faulty XPU-2 board136 No APU board Missing APU board; either not well connected to the backplane, or APU

board is defective137 No optional board Missing optional board; either not well connected to the backplane, or

optional board is defective200 Invalid indexed item format Wrong indexed item format; use points between indexes201 Invalid indexed item start index Wrong indexed item element number; too large or invalid 202 Invalid indexed item index length Wrong indexed item length; can be between 1 and 9999 Fatal XPU-2 error Serious internal XPU-2 software error; check contents of item 00 and

report to Enraf Delft


Page 36

5.5.2 APU warning code (item WC), error code (item EE) and status request (item QR)

Some APU warning codes of item WC (indexed item of 10 elements) are listed below, with suggestions forsolving the problem. For a complete overview, refer to item help in the service program ENSITE.

00000 No warning07000 Low product reflection No product reflection above threshold; check with a reflection diagram

and lower threshold value in item ZP if possible07001 Sensor contaminated Clean the antenna07005 Top / bottom clipping in raw samples A-channel Lower A-channel gain in item 5O, or enable automatic amplification07006 Top clipping raw samples A-channel control item 4M07007 Bottom clipping raw samples A-channel07015 No peaks found Check with a reflection diagram; lower threshold value in item ZP if

possible07200 Reduced accuracy Not enough points in table for AdvancedDSP level calculation. This is

automatically corrected when level in tank changes for at least 1 metre.07201 A/B channel measurement error after start-up This will be solved when the level in the tank reaches the reference

level, or when a new RL level is entered, followed by the AR command

Some APU error codes of item EE (indexed item of 10 elements) are listed below, with suggestions forsolving the problem. For a complete overview, refer to item help in the service program ENSITE.

00000 No errors encountered02001 Antenna Unit parameter version error Parameters in Antenna Unit SEEPROMs not compatible with APU02002 Antenna parameter version error software. Run file 873aud03*.esf on Ensite service program and replace

APU/DAB software. Then update AU parameters02005 Antenna Unit CAN protocol version error CAN version in Antenna Unit not compatible with CAN version on APU.

Update APU/DAB software; mind the Antenna / Antenna Unitparameters!

07101 Antenna zone out of range The antenna and bottom zone may not overlap; check items AZ and BZ07102 Antenna zone end before begin Check sign of item AZ (should not be negative)07103 Antenna zone threshold out of range Item ZA must be between 0 and 90 dB07104 Product zone threshold out of range Item ZP must be between 0 and 90 dB07106 Start bottom zone after bottom end Bottom zone (item BZ) must be within measuring range (40 metres).

Check also item PR07107 Bottom zone threshold out of range Item ZB must be between 0 and 90 dB07108 Obstruction zone start out of range Obstruction zone start and end must be within measuring range07109 Obstruction zone end out of range (40 metres). Check also item PR07110 Obstruction zone position switch Define obstruction zones in consecutive order07112 Obstruction zone threshold out of range Item OT.n.i must be between 0 and 90 dB07140 Acceptance window exp. delay out of range Item 5Q must be between 00 and 5007141 Acceptance window size out of range Item 5R must be between 00 and 5007170 Stilling well diameter out of range Item BD must be between +0.04752 and +0.3353 metres range07172 Operation mode unknown Item OM must be either F or S07173 Antenna mode / Operation mode conflict Wrong type of antenna used (i.e. stilling well antenna on a free space

Antenna Unit)07901 Maximum safe fill (item SF) exceeded Item SF must not be zero and not exceed the range (PR - AU)082xx Serious Antenna Unit error Check if item position 8 of 4V corresponds with the setting of item 6H;

4V-8: 1 -> 6H: 30 or 4V-8: - -> 6H: 72. Else, the Antenna Unit is faulty18001 Relay 1 error Check item AX, or replace APU board18002 Relay 2 error Check item AX, or replace APU board18003 Relay 1 and 2 error Check item AX, or replace APU board21003 Ullage correction table error Check item CL; each level may only be entered once21004 Verification pin table error Check items PB and PC (must be entered in ascending order)99999 Value at initialization



Item QR consists of 2 bytes (Byte 0, Byte 1) with status information of the APU board, located in the ControlUnit.

Status byte 0: Status byte 1:bit 0 : Low level alarm bit 0 : Level fail

1 : Low low level alarm 1 : Warning (for example: sensor contaminated)2 : High level alarm 2 : Last valid level used3 : High high level alarm 3 : Reduced accuracy4 : General APU fail 4 : Out of measuring range5 : Init / No previous store command 5 : Blocked6 : 1 6 : 17 : 0 7 : 0

5.5.3 Error code Antenna Unit (item EB) and status request (item QH)Some DAB error codes of item EB are listed below, with suggestions for solving the problem. For a completeoverview, refer to item help in the service program ENSITE.

0000 No errors encountered0051 Antenna parameter can not be stored SEEPROM for the antenna or the Antenna Unit is defective, or write 0053 Antenna Unit parameters can not be stored protect strap is in protect position 0054 Antenna Unit calibration parameters can not

be stored0055 Antenna SEEPROM is write protected Write protect strap is in protect position0056 Antenna Unit SEEPROM is write protected0057 Antenna Unit calibration SEEPROM is write

protected0150 APU is unable to communicate with DAB Check connection between Antenna Unit and Control Unit

Item QH consists of 2 bytes (Byte 0, Byte 1) with status information of the DAB board, located in the AntennaUnit.

Status byte 0:bit 0 : SEEPROM write allowed

1 : SEEPROM write busy 2-5 : 0

6 : 17 : 0

Status byte 1:bit 0 : Reduced accuracy

1 : Non fatal DAB error2 : Fatal DAB error3 : EXT line level4 : Sweep ready (if externally triggered)5 : Number of ADCs (0: 1 ADC; 1: 2 ADCs)6 : 17 : 0


Page 38

5.6 Updating software

The 873 SmartRadar is a multiple microprocessor gauge. If a new software version is installed, or an optionboard is added, it may be necessary to replace one or more of the program memories (EPROM) on theprocessor boards of the 873 SmartRadar (Control Unit as well as Antenna Unit).

The actual version of the installed software can be checked with item SV. In case of a software update,check whether the contents of item SV correspond with the documentation accompanying the new software.

Because of the strict relationship between the various processor boards, it may become necessary toreplace the memory of more than one processor board. Such a change may require an initialization of theNOVRAM, followed by re-programming the user parameters.

The table below gives the software versions for the different processor boards which can operate together.

Processor XPU-2 board APU board DAB board Optional board

Software XPU F1.0 APU A1.0 DAB A1.0 MPU A1.0*) (MIR) version DAB A1.1 B1.0*) (MIT)

TPU A2.1

XPU F1.1 APU A1.1 DAB A1.0 TPU-2 A2.0 XPU F1.2 DAB A1.1 HPU A1.0*) (MIR) XPU F1.3 DAB A1.2 B1.0*) (MIT)

*) from this soft- XPU F1.4 APU A1.2 DAB A1.3 OPU A1.0*) (MIR) ware version XPU F1.5 APU A1.3 B1.0*) (MIT) and upwards APU A2.0 HSU A1.0*)

Note:Because software updates of different processor boards may be required in the future, this table may notbe up to date. For further information, contact Enraf or the local representative.

If a new DAB / APU software version from a different row in the table above is placed in the SmartRadar, theAntenna / Antenna Unit parameters must also be updated. This can be done with a separate script filenamed: 873AUD03.ESF of the ENSITE service program.

Proceed as follows:

1) Start up ENSITE and make a log file of the gauge from which the software is going to be replaced. 2) Run the script file 873AUD03.ESF. This file is (should be) placed in the ESF sub-directory of the

ENSITE program and then it can be selected by the name: 873 AU download. This file storesdata of the Antenna and Antenna Unit SEEPROM in a file called: < TI >.AUD, located in the Tanksubdirectory under: [drive]:\ENSITE\DAT\.SIT\. (TI is the 6 character tank identifiername, represents the given site name when the scanned site data was stored and[drive] is the C- or D- drive from which the ENSITE program is running).

3) Go to the SmartRadar with the EPROMs and a PET (Portable Enraf Terminal) and request:

Transmission address (item TA) Tank identifier (item TI) Transmission speed (item TS) Gauge type (item GT)

Note these values for later use.



CautionDo not remove a board while the instrument is switched on. You may damage the electronics.

Figure Locking latch

4) Switch off mains supply and remove cover of ControlUnit.

5) Remove PCB retaining screw (B) and slide locking latch(A) to the right (refer to fig. 5.3).

6) Remove the XPU-2, APU and optional board (if installed).If the W&M strap (JA3) on the XPU-2 board is placed inposition 1, then place it (temporarily) into position 0.

Note:Before removing the APU board and optionalboard, it may be necessary to disconnect thewiring first.

7) Remove the existing EPROM's from the processor boards and install the new EPROM's.Refer to Appendix D for the location of the EPROM's on the different processor boards.

8) Re-install the boards. 9) Slide locking latch on XPU-2 board to the left, secure the PCB's with the retaining screw.10) Open Antenna Unit cover and change the DAB EPROM. Change the write protect strap to the

position W (write). Refer to Appendix D.11) Close covers and apply power. 12) If NOVRAM needs to be formatted, proceed as follows:

Issue the command IN on the PET three times in sequence. After the third time the NOVRAMwill be formatted and the message: "NV-data initializing" appears.Note:

Any other command in between the three IN commands, either from the PET or the Enraffield bus, will abort the init procedure. To avoid requests from the Enraf field bus, they can bedisconnected temporarily.

When the NOVRAM formatting is ready, the message: "NV-data init completed" will be shown. Re-enter the items: TA (transmission address)

TI (tank identifier) TS (transmission speed) GT (gauge type)

13) Re-transmit the log file from ENSITE.14) Run the script file < TI >AUD, which was made before changing the EPROMs;

(Use: &RUN [drive]:\ENSITE\DAT\.SIT\\.AUD).15) Program all new settings which are required with the updated software.16) Set the SmartRadar to the correct level (check by means of a manual measurement) by using the

RL, AR procedure (refer to chapter 3.3.3).17) Switch off supply, open cover of Antenna Unit to place the write protect strap back to position P

(protect) and, if required, open the cover of the Control Unit to place the W&M strap (JA3) inposition 1.

18) Close cover(s) and apply power.19) Make a new log file and a reflection diagram with ENSITE for future reference.

Appendix A

Page 40

Appendix A Article and part numbers

It is recommended to keep one set printed circuit boards on stock for spare. This includes the backplane forthe Control Unit, as the transformer is mounted on the backplane and the eventually installed option board.Refer to the figure on the next page.

No. Description Part. no.

1 Backplane (with mains transformer 110 - 240V) 0854.951(with mains transformer 65V) 0854.9642 GPS board 0854.615

3 APU board (without alarm relays) 0873.611(with alarm relays) 0873.612

4 (with RS-232C channel) 0873.623*)XPU-2 board (Basic version) 0873.620*)

*) without display! (with RS-485 channel) 0873.624*)

5

Option board: TPU-2 board 0854.651MPU board (with 4-20 mA analog output) 0854.648

HPU board 0854.644OPU board 0854.665HSU board 0854.649HSU board (Pt900) 0854.652

(without 4-20 mA analog output) 0854.647

6 Terminals (grey) 2635.3087 Terminals (blue) 2635.3098 IR connector 0854.380

9 DAB board 0873.650

10 Tank separator (for all planar antenna models) 0873.880(for high pressure antenna) 0873.88111 O-ring (2 O-rings required) 2132.97012 O-ring (part of IR connector assembly) 2132.21013 O-ring 2132.168

14 O-ring 2132.817

15 O-ring 2132.334

Grease, Anti seize 4000.015

Magnet for XPU-2 hall switches 0186.236

Appendix A


Exploded view Antenna Unit and Control UnitThe printed circuit boards are delivered without EPROM's and on the XPU-2 print the NOVRAM is notinstalled. These should ordered separately; the part numbers are:

EPROM Part no. EPROM Part no. EPROM Part no.

XPU-2 0181.220 TPU 0181.140 HPU (MIR) 0181.143APU - L & H (set) 0181.221 HSU / TPU-2 0181.147 HPU (MIT) 0181.144DAB 0181.222 MPU (MIR) 0181.154 OPU (MIR) 0181.145NOVRAM (XPU-2) 2518.929 MPU (MIT) 0181.155 OPU (MIT) 0181.146

Parts in the Control Unit can be easily exchanged.

For the Antenna Unit, only the DAB board can be replaced by a spare board (do not forget to switch overthe Antenna SEEPROM). If the problem is in the HFB board, or another part of the Antenna Unit then thewhole Antenna Unit must be replaced. This is because of the calibration of the Antenna Unit. HFB board, VCO and reference line are calibrated together as one set.

Antennas can be changed for the same type and with the same stem length. Refer to table on next page forthe part numbers. Also the tank separator can be changed for the same type.

Appendix A

Page 42

Antenna type part numbers

Antenna type Stem length [mm] Part number

S06 0300 0873.913 6" stilling well 0500 0873.915

0050 0873.911

0800 0873.918

S08 0300 0873.923 8" stilling well 0500 0873.925

0050 0873.921

0800 0873.928

S10 0300 0873.933 10" stilling well 0500 0873.935

0050 0873.931

0800 0873.938

S12 0300 0873.943 12" stilling well 0500 0873.945

0050 0873.941

0800 0873.948

F08 0300 0873.973 8" free space 0500 0873.975

0050 ) 0873.9711

0800 0873.978

W06 0300 0873.963 WALP 6" x 12" 0500 0873.965

0050 ) 0873.9611

0800 0873.968

T06 0300 0873.953 Hinged WALP 0500 0873.955 6" x 12" 0800 0873.958

D04 1" RoD 0000 0873.900

H02 High pressure

H02 Antenna with integrated 0873.990 tank separator

H04 360 mm horn length ) 0873.371 High pressure 410 mm horn length ) 0873.273

23

) For demo purposes only1) For 4" Sch 40 pipe2) For 4" Sch 10 pipe3

Appendix B


Appendix B ASCII table

Appendix C

Page 44

Level and temperature display (format A)

Appendix C Display formats

Appendix C


Level display (format B)

Appendix C

Page 46

Average gas temperature display (format C)

Average product temperature display (format D)

Appendix C


HIMS density display (format E)

HIMS pressure displays (format F and H)

Appendix C

Page 48

Analog level output display (format J)

Water level display (format K)

Appendix D


Layout of different processor boards

Appendix D PCB layout

The x inside the EPROM in the figure above notes the notch on the EPROM. The notch of the EPROM mustfit with the notch of the EPROM socket on the processor board.

Appendix E

Page 50

Appendix E Related documents

Title Part No.

Installation guide 873 SmartRadar Control Unit & Antenna Unit (CENELEC) 4416.569Installation guide 873 SmartRadar Control Unit & Antenna Unit (FM) 4416.731Installation guide SmartRadar Antennas 4416.730Installation guide 873 SmartRadar Sample hatch for 6" to 12" stilling well antennas 4416.590Installation guide 873 SmartRadar Verification pins 4416.591Installation guide 873 SmartRadar Roof reflector 4416.580Installation guide 873 SmartRadar Beam Aligner 4416.598

Instruction manual APU Hard alarm output contacts 4416.579Instruction manual 873 SmartRadar verification pin compensation 4416.586

Instruction manual ENSITE service tool 4416.587Instruction manual 847 PET 4416.210

Instruction manual XPU-2 option RS-232C / RS-485 4416.237

Instruction manual TPU-2 and HSU option board 4416.253Instruction manual MPU analog output 4 - 20 mA 4416.222

Instruction manual 862 MIR 4416.230Instruction manual 862 MIT 4416.231

Instruction manual HIMS 4416.241Instruction manual Water bottom measurement by capacitive probe 4416.595

Identification code 873 SmartRadar 4416.952

Index


Index3Z . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 314V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16, 275D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215E . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 335Q . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 275R . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27Accept reference . . . . . . . . . . . . . . . . . . . . . . . 17AdvancedDSP . . . . . . . . . . . . . . . . . . . . . . 16, 28AH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23Alarm loop check . . . . . . . . . . . . . . . . . . . . . . . 34Alarm settings . . . . . . . . . . . . . . . . . . . . . . . . . . 23Alarm test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

enable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34Amplitude of detected peaks . . . . . . . . . . . . . . 21Antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

zone length . . . . . . . . . . . . . . . . . . . . . . . . . 20zone threshold . . . . . . . . . . . . . . . . . . . . . . . 20

Antenna Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6error request . . . . . . . . . . . . . . . . . . . . . . . . 37status request . . . . . . . . . . . . . . . . . . . . . . . 37

Approvals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8APU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

status request . . . . . . . . . . . . . . . . . . . . 37, 38warning code . . . . . . . . . . . . . . . . . . . . . . . . 36

AR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17AT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34AZ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20Backplane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40BD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16, 28Bottom zone . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

offset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20threshold . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

BZ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20CIU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16CM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17Commissioning mode . . . . . . . . . . . . . . . . . . . . 17Control Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6CPI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8CZ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34DAB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40DE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24DF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25DG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25Diagnostic view . . . . . . . . . . . . . . . . . . . . . . . . . 31Display Microwave signal . . . . . . . . . . . . . . . . . . . . . . . . 5

additional . . . . . . . . . . . . . . . . . . . . . . . . . . . 30configuration . . . . . . . . . . . . . . . . . . . . . . . . 31contrast . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25format toggle . . . . . . . . . . . . . . . . . . . . . . . . 31scroll . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

DJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25DP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14EB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37Element . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

number . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12ENTIS+ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8EP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35EPROM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41Error codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35EX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16FDI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Floating point format . . . . . . . . . . . . . . . . . . . . . 14Format NOVRAM . . . . . . . . . . . . . . . . . . . . . . . 39Gauge type . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16GPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40GT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16HA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23HART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5HH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23HIMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13Honeywell . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5HPU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5, 40HSU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5, 40IN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39Indexed items . . . . . . . . . . . . . . . . . . . . . . . . . . 12Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Infra red cable . . . . . . . . . . . . . . . . . . . . . . . . . . 40Innage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24LA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23LD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14LE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34Level

calculation decision switch . . . . . . . . . . 16, 27dimension . . . . . . . . . . . . . . . . . . . . . . . . . . 14type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Level alarmHigh . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23High high . . . . . . . . . . . . . . . . . . . . . . . . . . . 23hysteresis . . . . . . . . . . . . . . . . . . . . . . . . . . 23Low . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23Low low . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

LL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23Loop check enable . . . . . . . . . . . . . . . . . . . . . . 34Maximum safe fill height . . . . . . . . . . . . . . . . . . 16

Min max diagram . . . . . . . . . . . . . . . . . . . . . . . 33clear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

MPU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5, 40NOVRAM

format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39init . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39item view . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Index

Page 52

Number of elements . . . . . . . . . . . . . . . . . . . . . 12Obstruction zone . . . . . . . . . . . . . . . . . . . . 18, 21

enable / disable . . . . . . . . . . . . . . . . . . . . . . 21end . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21end positions . . . . . . . . . . . . . . . . . . . . . . . . 21start positions . . . . . . . . . . . . . . . . . . . . . . . 21threshold . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

OE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21OM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16OPU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5, 40OS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21OT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21OZ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21Password 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25Password 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25Position of detected peaks . . . . . . . . . . . . . . . . 21Power format . . . . . . . . . . . . . . . . . . . . . . . . . . 14PR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16, 17Pressure transmitters . . . . . . . . . . . . . . . . . . . . . 5QH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37QR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37Radar UR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

operational mode . . . . . . . . . . . . . . . . . . . . . 16position . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17zero point . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Reference level . . . . . . . . . . . . . . . . . . . . . . . . . 17Reflection diagram . . . . . . . . . . . . . . . . . . . 18, 21RL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17SF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16SmartRadar . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5SPR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Standard formats . . . . . . . . . . . . . . . . . . . . . . . 14Status byte . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35Status information . . . . . . . . . . . . . . . . . . . . . . . 35Stilling well diameter . . . . . . . . . . . . . . . . . . 16, 28

Synthesized pulse . . . . . . . . . . . . . . . . . . . . . . . 5System configuration . . . . . . . . . . . . . . . . . . . . 31TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16Tank

identifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16separator . . . . . . . . . . . . . . . . . . . . . . . . . 6, 40

Tenth millimetre selection . . . . . . . . . . . . . . . . . 25Terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40Threshold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

antenna zone . . . . . . . . . . . . . . . . . . . . . . . . 20bottom zone . . . . . . . . . . . . . . . . . . . . . . . . . 20obstruction zone . . . . . . . . . . . . . . . . . . . . . 21product zone . . . . . . . . . . . . . . . . . . . . . . . . 20

TI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16TPU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5, 40Transmission

address . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

TS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16Ullage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24Upper reference . . . . . . . . . . . . . . . . . . . . . . . . 24

W1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25W2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25Water bottom . . . . . . . . . . . . . . . . . . . . . . . . . . . 5WC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36XPU-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35, 40

error list . . . . . . . . . . . .

Date post:	25-Nov-2015
Category:	Documents
Upload:	araya20
View:	858 times
Download:	135 times

873 I_O Manual (2)

Documents