Method Description Setup
mA Input An external device sends
pressure data to the meter via
the mA Input.
a. Choose Menu > Configuration > Process Measurement >
Pressure Compensation > External Pressure.
b. Set External Pressure to On.
c. Choose Menu > Configuration > Inputs/Outputs > Channel
D.
d. Set I/O Type to MAI.
e. Set Power appropriately.
f. Choose I/O Settings.
g. Set Assignment to External Pressure.
h. Set Lower Range Value and Upper Range Value
appropriately.
Digital
communications
A host writes pressure data to
the meter at appropriate
intervals.
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.
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 polling:
— Verify the wiring between the meter and the external device.
— Verify the HART tag of the external device.
• For the mA Input:
— Verify the wiring between the meter and the external device.
— Verify the power configuration for Channel D. If external power is required, ensure that the loop is
powered.
— Verify the Lower Range Value and Upper Range Value settings for the mA Input.
— Perform an mA Input trim.
— Adjust the mA Input damping value.
• For digital communications:
— 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.
Configuration and Use Manual Measurement support
MMI-20025166 March 2019
Configuration and Use Manual 211
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