Fluke 726 [46/80] Simulating rtds

726

Users Manual

Simulating RTDs

Connect the Calibrator to the instrument under test as

shown in Figure 17. Proceed as follows to simulate an

RTD:

1. If necessary, press

M for SOURCE mode.

2. Press

R for the RTD display.

Note

Use the 3W and 4W terminals for measurement

only, not for simulation. The Calibrator simulates

a 2-wire RTD at its front panel. To connect to a

3-wire or 4-wire transmitter, use the stacking

cables to provide the extra wires. See Figure 17.

3. Enter the desired temperature by pressing X and

W. Press Y and Z to select a different digit to edit.

4. If the 726 display indicates ExI HI, the excitation

current from your device under test exceeds the

limits of the 726.

Содержание

Multifunction process calibrator users manual 1
Limited warranty and limitation of liability 2
Table of contents 3
Title page 3
Contents 5
List of tables 7
Table title page 7
Figure title page 9
List of figures 9
Contacting fluke 11
Introduction 11
Multifunction process calibrator 11
Safety information 13
Standard equipment 13
Xw warning 13
Xw warning 14
W caution 15
Ac72 alligator clips 16
Bec01f eps 16
Figure 1 standard equipment 16
Stackable test leads 16
Tl75 test lead set 16
Users manual 16
Symbols 17
Figure 2 input output terminals and connectors 18
Figure 2 shows the calibrator input and output terminals table 3 explains their use 18
Getting acquainted with the calibrator 18
Input and output terminals 18
Users manual 18
Bec41f eps 20
Figure 3 keys 20
Figure 3 shows the calibrator keys and table 4 explains their use 20
Users manual 20
Display 23
Figure 4 elements of a typical display 23
Figure 4 shows the elements of a typical display 23
Multifunction process calibrator getting acquainted with the calibrator 23
Configuration menus 24
Contrast adjustment 24
Celcius and fahrenheit c and f 25
Frequency pulse output voltage 25
Pulse output frequency 25
Shut down mode 25
Getting started 26
Hart resistor on off 26
Resistor on off 26
Voltage to voltage test 26
Bec39f eps 27
Config selection 27
Figure 6 voltage to voltage test 27
Multifunction process calibrator getting started 27
Precision calibrator 27
Save recall 27
Current measurement with loop power 28
Measuring electrical parameters upper display 28
Using measure mode 28
Figure 8 connections for supplying loop power 29
Hart communicator 29
Meas source 29
Multifunction process calibrator using measure mode 29
Precision calibrator 29
Save recall 29
Measuring electrical parameters lower display 30
Measuring temperature 31
Using thermocouples 31
W caution 31
Figure 10 measuring temperature with a thermocouple 33
Multifunction process calibrator using measure mode 33
Process temperature 33
Tc miniplug 33
Warning 30 v maximum to 33
Prt custom curves 34
Using resistance temperature detectors rtds 34
Figure 11 measuring temperature with an rtd measuring 2 3 and 4 wire resistance 36
Users manual 36
Measuring pressure 37
W caution 37
W warning 37
A for 3 second 38
Zeroing with absolute pressure modules 38
Differential module 39
Figure 13 connections for measuring pressure 39
Gage module 39
Isolation valve 39
Multifunction process calibrator using measure mode 39
Simulating a 4 to 20 ma transmitter 40
Sourcing 4 to 20 ma 40
Using source mode 40
Figure 14 connections for simulating a 4 to 20 ma transmitter 41
Loop power supply 41
Multifunction process calibrator using source mode 41
Readout or controller 41
Sourcing other electrical parameters 42
Figure 15 electrical sourcing connections 43
Measure source measure 43
Multifunction process calibrator using source mode 43
Simulating thermocouples 44
W caution 44
Color depends on type of tc 45
Figure 16 connections for simulating a thermocouple 45
Multifunction process calibrator using source mode 45
Precision calibrator 45
Tc miniplug 45
Simulating rtds 46
Config selection 47
Figure 17 connections for simulating 3 and 4 wire rtd 47
Multifunction process calibrator using source mode 47
Precision calibrator 47
Save recall 47
Sensor terminals 47
Source 47
V ma loop switch test 47
Sourcing pressure 48
W caution 48
W warning 48
Figure 18 connections for sourcing pressure 50
Hand pump 50
Measure ma source pressure 24 v loop power enabled 50
Pressure module 50
To unit under test 50
Users manual 50
Error functionality 51
Setting 0 and 100 output parameters 51
Stepping and ramping the output 51
Auto ramping the output 52
L is presse 52
Manually stepping the ma output 52
Store a setup 52
Storing and recalling setups 52
Recall a setup 53
Storing and recalling data 53
Storing data 53
Pulse train source read 54
Recall data 54
Calibrating a transmitter 55
Figure 20 calibrating a thermocouple transmitter 56
Hart communicator 56
Meas source 56
Precision calibrator 56
Save recall 56
Users manual 56
Calibrating a pressure transmitter 57
Figure 21 calibrating a pressure to current p i transmitter 58
Hand pump 58
Meas source 58
Precision calibrator 58
Pressure module 58
Save recall 58
Users manual 58
Calibrating an i p device 59
Figure 22 calibrating a current to pressure i p transmitter 60
Hart communicator 60
Measure pressure source ma 60
Precision calibrator 60
Pressure module 60
Users manual 60
Pressure switch test 61
Testing an output device 61
Functionality 62
Hart functionality 62
Remote control commands 62
Maintenance 63
Replacing the batteries 63
Warning 63
Cleaning the calibrator 64
Replacement parts 64
Service center calibration or repair 64
W caution 64
Figure 25 replacement parts 65
Maintenance 65
Multifunction process calibrator 65
Accessories 66
External fluke pressure module compatibility 66
Dc ma measurement and source 69
Dc voltage measurement and source 69
Multifunction process calibrator 69
Specifications 69
Frequency measurement 70
Ohms measurement 70
Ohms source 70
Users manual 70
Frequency source 71
Multifunction process calibrator 71
Specifications 71
Temperature thermocouples 71
Users manual 72
Multifunction process calibrator 73
Rtd accuracy read and source its 90 73
Specifications 73
Loop power supply 74
Pressure measurement 74
Pulse read and pulse source 74
Users manual 74
Voltage 24 v maximum current 22 ma short circuit protected 74
General specifications 75
Multifunction process calibrator 75
Specifications 75

Fluke 726 [46/80] Simulating rtds

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