Problems with Honeywell pressure transmitters.
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I have a pressure transmitter here, with a range of -0.1 to 0.6 Mpa; I’m filling the tank with 0. The 2mpa pressure gauge reads 0. 4 MPa; it’s the same whether it’s positive or negative pressure, and the measured pressure value is doubled – this is the figure shown by the pressure transmitter on site. Please, expert, help me figure this out!
How about trying a float-type pressure gauge with a standard source?
I tried it with a piston press yesterday, and the reading also doubled
It also doubled; that’s due to drifting. Re-calibrate zero and span
Calibrate the pressure transmitter first by yourself
What device is used to measure 0.2MPa? If it is a standard gauge that is used for measurement, then the transmitter is faulty; calibrate the transmitter using a standard gauge.
-0.05Mpa displays -0.1Mpa
Why do pressure instruments have positive and negative pressures?