from factory conditions during the commissioning testing, and calibration of pressure transmitters.
How to perform the test
- Connect the transmitter test hose from the calibrator to the transmitter
- Connect the mA measurement jacks of the calibrator to the transmitter
- Set the pressure/vacuum selection knob to the necessary function
- Close the vent knob and supply metering valve
- Apply pressure or vacuum from the pump by holding down the pump button and release when the necessary pressure is reached
- Correct the pressure with the fine pressure adjustment
- Read the reference pressure and the current output of the transmitter from the display
- Repeat for all test points. If the measured mA signal at the test points is found within tolerance the test is complete. If not, then adjustment is required
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