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how can we calibrate the differential pressure transmitter
by using HART communicator
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Answer Posted / malchom
You can not accurately calibrate a differential pressure transmitter with a HART communicator. A communicator is just that. A communicator, not a calibrator. The communicator is displaying to the user the pressure input and ma output units that the transmitter "thinks" it is seeing and sending. These values may be quite different than the actual values being applied and sent as indicated by pressure and current calibrators which have themselves been calibrated using a known standard. You can use the communicator to adjust the transmitter to then match your calibration equipment.
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