Loop calibration with a temperature transmitter at the bench
In industrial process industries, temperature measurement equipment usually has two components: a sensing device such as an RTD or thermocouple and a transmitter to read and relay the signal to the control system. All sensors, including RTDs, drift with time. Thus, testing the transmitter and not the sensor could result in misjudgment regarding a system’s performance. To avoid this potential problem, process instrument manufacturers recommend including the temperature sensor in loop calibration to prove the effectiveness of the entire system.
Suggested test tools
Fluke Calibration 9142, 9143, 9144 Field MetrologyWells See pg 23
Fluke Calibration 7526A Precision Process Calibrator with temperature source See pg 8 and 22
Fluke 754 Documenting Process Calibrator with temperature source See pg 7 and 23
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Temperature Applications
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