I do the testing and calibration of the instrumentation.
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RTD’s
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Thermocouples
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Pressure transmitters
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Valves
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RVDT’s
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LVDT’s
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Actuators
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Etc.
I have some bad experiences with smart transmitters! For example instruments with ranges of 0 to 10 Bara are used for measuring atmospheric pressure. I think that smart transmitters have caused a lot of damage to installations since they were introduced. Every technician with a Hart communicator can change ranges, Offsets and Gains so easily. The control does not now anything about it because it is only looking at a 4 to 20mA signal. This is why I prefer standard instruments for specific ranges instead of the smart bastards. Adjusting ranges can always be done on the control. I prefer to do the calibration on the instrument itself, but if it is not possible I will do it in the control.
