Offset and slope for differential pressure transmitter?

Pressure Q&A

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:

  1. Using a reference pressure device, apply the desired offset trim value (low pressure value).
  2. 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.
  3. Using a reference pressure device, apply the desired slope trim value (high pressure value).
  4. Once the applied pressure has stabilized, use the transmitter’s slope trim command.
Offset and slope

Want to read it for yourself? If so, here you go.

These companies offer pressure transmitters:

Other resources that might interest you

Lower and upper range values of differential pressure transmitter
On my differential pressure transmitter, I have a range from 0 to 500 psi. We use an orifice plate for creating differential pressure. Maximum DP in our gas flow is about 200 psi but it’s not fixed. So can you tell me how to determine the lower and upper range values?

How to implement a differential pressure flow transmitter to steam flow measurement
I want to learn more about steam flow measurement! So can I implement a standard differential pressure transmitter to the flow measurement?

DP transmitter level calculation
What information do I need to select the pressure cell for a differential pressure transmitter to do level measurement?

Differential pressure applications
In which kind of applications can I use a DP transmitter?

 

Related tags: Calibration Differential of pressure Emerson Process Management how to do Linear offset Offset Pressure Rosemount Slope Slope correction TRIM
Comments
Offset and slope for differential pressure transmitter?
#LinkedInsights: Challenges with DP Level Transmitters
#LinkedInsights: Maximum Uncertainty of Orifice Plate Flowmeters AGA-3
Water well level measurement with Proteus EcoMeter
Where do you apply volume boosters?
See related devices