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HART Pressure Calibration and Zero Calibration of Pressure Transmitter
•Almost identical to analog transmitter connections
–HART cable connection required for digital adjustment.
•Configure the Calibrator.
•Acquire the test parameters (HART Query).
•Configure the input/output of the calibrator.
•Define the test parameters.
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| a)Acquire HART Configuration b) Configure the measure and source function of calibrator c) Define the performance test |
Calibration-As Found Test
•Document the pre-adjustment transmitter condition
Calibration- Digital Adjustment
•Perform HART trim on the transmitter
As Left Test
•Verify post adjustment condition of transmitter
•If still Out Of Tolerance (OOT)
–Repeat adjustment
–Re-run as-left until it passes within tolerance
•If it cannot be satisfactorily adjusted…
–Were there leaks in the fittings?
