User Manual Dlc

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User manual

JOFRA DLC-155/158/250/700Copyright 2010 AMETEK Denmark A/S


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Table of contents: Page

1.0 General information ......................42.0 Introduction....................................5

3.0 Functionality ..................................6

3.1 Functional description..................6

3.2 Connections ................................6

3.3 Serial number..............................8

4.0 Operation........................................9

4.1 Operation area ............................9

5.0 Maintenance.................................10

5.1 Calibration .................................11

6.0 Technical specifications .............15


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1.0 General information

This manual is only effective for the following

products:

JOFRA DLC-155JOFRA DLC-158JOFRA DLC-250JOFRA DLC-700

The products are manufactured by:

AMETEK Denmark A/S

Gydevang 32-343450 Allerd - Denmark

TEL: +45 48 16 80 00FAX: +45 48 16 80 80


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2.0 Introduction

The JOFRA DLC-155, DLC-158, DLC-250 and DLC-700 probes are designed for fast and traceablecalibration and temperature measuring with JOFRARTC-156/157 B/C, JOFRA RTC-158 B/C, JOFRARTC-250 B/C and JOFRA RTC-700 B/C systemsand are ready for use.

Please read this manual carefully before use, toobtain maximum value of your calibration system.

Warning

Read this manual before use.

Do not use in hazardous area.

Handle carefully.

Never exceed temperature range


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3.0 Functionality

3.1 Functional description

The probes can be used for temperatures in therange :

DLC-155 : -60C to 155C / -76F to 311F

DLC-158 : -60C to 155C / -76F to 311F

DLC-250 : 0C to 250C / 32F to 482F

DLC-700 : 0C to 700C / 32F to 1292F

The JOFRA DLC-155, DLC-158, DLC-250 and DLC-700 probes may be supplied with a certificate for alimited temperature range.

3.2 Connections

The probes are delivered with a connecting cable.The pin-layout is as follows:

Pin 1 : TC V-Pin 2 : TC V+Pin 3 : Memory GND

Pin 4 : Memory I/O


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The figure below is shown from the connector sideof the probe connector.

1

23

4


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3.3 Serial number

The serial number is placed on the probe as shownon the figure below:

Serial number


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4.0 Operation

4.1 Operation area

All the probes are intended for use in areas whichmeet the following:

Ambient temperaturerange : -20C to 70C (-4F to 158F)

Humidity : 0% to 90%

Protection class : IP 50

WarningDo not use in hazardous areas.


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5.0 Maintenance

The probe does not require specific maintenancebefore or after use. The user may carry out thefollowing procedure himself:

Cleaning the probe : Use alcohol or water

and a soft cloth.

Caution

The probe must always be protectedagainst any mechanical damage.

The probe must never be exposed to

mechanical shock effects. Avoid thermal shock

Any bending of the probe may causepermanent damage


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5.1 Calibration

Required equipment:

DLC-probe to be calibrated. RTC-calibrator with DLC-input.

An insert with correct size holes for the DLC-probe and the temperature probe.

For calibrating DLC-155, DLC-158 and DLC-250:an AMETEK 127587 temperature probe(recommended) or similar with short measuringzone is required.

For calibrating DLC-700: a STS-200 A 970temperature probe (recommended) or similar isrequired.

Procedure:

1. Place the DLC-probe in the insert and connectthe probe to the DLC-input of the calibrator.

2. Go to the Sensor setup menu.

3. Set Use load compensation to YES. If thereference probe is connected to the REF input,

set Sensor type to External and SET followsTRUE to No. If no reference probe isconnected, set Sensor type to Internal.

4. Enter the DLC-menu.

5. Read the A, B and C-coefficients of the probeand enter the values in the EXCEL spreadsheet

(127588 DLC-155.XLS, 127884 DLC-158.XLS,127885 DLC-250.XLS or 127589 DLC-700.XLS).


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The calibration temperatures are:Sensor DLC-155 DLC-155 DLC-700

Calibrator RTC-156 RTC-157 RTC-700

-30C/-22F -45C/-49F 33C/91.4F-20C/-4F -20C/-4F 200C/392F

0C/32F 0C/32F 350C/662F

50C/122F 50C/122F 500C/932F

100C/212F 100C/212F 660C/1220F

*Recommendedcalibrationtemperatures

155C/311F 155C/311F 700C/1292F

Lower

measuring point

Bottom of

insert

Bottom of

insert

Bottom of

insertUppermeasuring point

60 mm /2.4 frombottom


80 mm / 3.1from bottom

Curve fitwarning limit

0.01C/0.018F

0.01C /0.018F

0.05C /0.09F

* Note : The temperatures must be entered in Celcius.


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Sensor DLC-158 DLC-250

Calibrator RTC-158 RTC-250

-22C/-72F 28C/82F

-10C/-4F 50C/122F0C/32F 100C/212F

50C/122F 150C/302F

100C/212F 200C/392F

*Recommendedcalibrationtemperatures

155C/311F 250C/482F

Lowermeasuring point

Bottom ofinsert

Bottom ofinsert

Uppermeasuring point



Curve fitwarning limit

0.01C/0.018F

0.01C /0.018F

* Note : The temperatures must be entered in Celcius.

The following procedure is repeated for eachtemperature:

1. Set the SET temperature.

2. Place the reference temperature probe in thebottom of the insert.Wait until the temperature have stabilized and theDLC-reading is 0.00C. If the DLC-readingcontinuously shows a positive value at -30C(RTC-156) / -45C (RTC-157) / -22C (RTC-158),increase the SET-temperature in steps of 1C

until the DLC-reading displays 0.00C.


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3. Record the temperature of the reference probe inthe excel spreadsheet.

4. Move the reference probe to the upper position

60 mm (RTC-156/157/158/250) or 80 mm (RTC-700).

5. Wait until the temperature have stabilized and theDLC-reading is 0.00C.

6. Record the temperature of the reference probeand the DLC-probe in the excel spreadsheet.

7. Go to next SET-temperature.

After the last STEP is completed:

8. Check that all values in the calculated curve fitare less than the values specified in the table. Ifthis is OK, the new coefficients can be

downloaded using the CON050 software.


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6.0 Technical specifications

Probe specifications DLC-155:

Sensor type : Differential TC type T

Probe length : 177 mm (6.96 in)

Temperature range : -60C to 155C / -76F to311F

Diameter : OD3 mmDepth : 140 mm (5.51 in)

Media compatibility : AISI316

Connection : Redel plug with build inmemory is standard




Temperature range : -60C to 155C / -76F to

311F

Diameter : OD3 mm

Depth : 140 mm (5.51 in)




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Temperature range : 0C to 250C / 32F to482F

Diameter : OD3 mm

Depth : 140 mm (5.51 in)




Sensor type : Differential TC type N


Temperature range : 0C to 700C / 32F to1292F

Diameter : OD4 mm

Depth : 200 mm (7.9 in)

Media compatibility : INCONEL 600



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Certificate:

If the DLC probes are supplied with a certificate, thecalibration is carried out as recommended below

according to the ITS 90 temperature scale.

The DLC-155/158 probe is as standard calibrated inthe range :

45C to 155C (-49F to 311F).

The DLC-250 probe is as standard calibrated in therange :

28C to 250C (82F to 482F).

The DLC-700 probe is as standard calibrated in therange :

33C to 700C (91.4F to 1292F).

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