Why are differential pressure transmitters used to measure small pressures?
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Why are differential pressure transmitters used to measure small pressures, such as 1000 Pa? How should the type of sensor element be chosen? What kind of process interface should be used?
Micro-differential pressure offers higher precision than pressure transmitters; the process interface depends on what kind of process connection the user has
Just choose according to the pressure transmitter, using the positive pressure side of the differential type.
The measured pressure is actually differential pressure; the only difference is that the negative pressure for a pressure transmitter is fixed, whereas a differential pressure transmitter measures the atmospheric pressure around it. That’s all there is to it – no need to complicate things.