Emerson Micro Motion 5700 Configuration And Use Manual page 167

Configuration and Use Manual
MMI-20029769
2. Set Units to the pressure unit used by the external pressure device.
3. Enter Flow 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.
4. Enter Density 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
5. Set 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.
6. 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.
Postrequisites
Choose Menu > Service Tools > Service Data > View Process Variables and verify the external pressure value.
Need help?
If the value is not correct:
• Ensure that the external device and the meter are using the same measurement unit.
• For digital communications:
— Verify that the host has access to the required data.
14.4.2 Set up pressure compensation using ProLink III
Procedure
1. Choose Device Tools > Configuration > Process Measurement > Pressure Compensation.
2. Set Pressure Compensation Status to Enabled.
Configuration and Use Manual
3
/PSI. When entering the value, reverse the
3
/PSI, enter −0.000006 g/cm3/PSI.
Setup
a. Choose Menu > Configuration > Process Measurement >
Pressure Compensation > External Pressure.
b. Set External Pressure to On.
c. Perform the necessary host programming and
communications setup to write pressure data to the
transmitter at appropriate intervals.
Measurement support
March 2019
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