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