Emerson Micro Motion 4200 Configuration And Use Manual page 138

Measurement support
April 2019
— Verify that the host has access to the required data.
— Verify that the host is writing to the correct register in memory, using the correct data type.
12.4.3 Configure pressure compensation using the Field
Communicator
Procedure
1. Choose Configure > Manual Setup > Measurements > Optional Setup > External Pressure/
Temperature > Pressure.
2. Set Pressure Unit to the unit used by the external pressure device.
3. Enable Pressure Compensation.
4. Set Flow Calibration Pressure to the pressure at which your sensor was calibrated.
The calibration pressure is the pressure at which your sensor was calibrated, and defines the pressure at
which there is no pressure effect. If the data is unavailable, enter 20 PSI.
5. Enter Flow Press Factor for your sensor.
The flow factor is the percent change in the flow rate per PSI. When entering the value, reverse the
sign.
Example
If the flow factor is 0.000004 % per PSI, enter −0.000004 % per PSI.
6. Enter Density Pressure Factor for your sensor.
The density factor is the change in fluid density, in g/cm
sign.
Example
If the density factor is 0.000006 g/cm
7. Choose the method to be used to supply pressure data, and perform the required setup.
Method Description
Digital A host writes pressure data to
communications the meter at appropriate
intervals.
138
3
/PSI. When entering the value, reverse the
3
/PSI, enter −0.000006 g/cm
Setup
a. Choose Configure > Manual Setup > Measurements >
Optional Setup > External Pressure/Temperature >
Pressure.
b. Set Pressure Compensation to Enable.
c. Perform the necessary host programming and
communications setup to write pressure data to the
transmitter at appropriate intervals.
Configuration and Use Manual
MMI-20048166
3
/PSI.
Micro Motion 4200 Transmitters