I have to install and calibrate a Rosemount differential pressure transmitter. How do I do the offset and slope adjustment?
Expert’s answer: Offset and slope for differential pressure transmitter
So you want to linearize your output over the pressure and temperature range, do you? No problem. The procedure for adjusting offset and slope for differential pressure transmitter is simple on Rosemount devices, and the following steps come straight from Emerson’s own calibration document:
- Using a reference pressure device, apply the desired offset trim value (low pressure value).
- Once the applied pressure has stabilized, use the transmitter’s offset trim command. The offset trim point is typically done at a zero point with no pressure value applied.
- Using a reference pressure device, apply the desired slope trim value (high pressure value).
- Once the applied pressure has stabilized, use the transmitter’s slope trim command.
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