Emerson Micro Motion 1600 - Set up temperature and pressure data for API Referral using a field communicator

6. If required, set Reference Temperature to the temperature to which density will be corrected in
referred density calculations.
The default reference temperature is determined by the selected API table.
7. If required, set Reference Pressure to the pressure to which density will be corrected in referred density
calculations.
The default reference pressure is determined by the selected API table. API Referral requires gauge
pressure.
Set up temperature and pressure data for API Referral using a field
communicator
The API Referral application uses temperature and, optionally, pressure data in its calculations. You must
decide how to provide this data, then perform the required configuration and setup.
Note
Fixed values for temperature or pressure are not recommended. Using a fixed temperature or pressure value
may produce inaccurate process data.
Procedure
1. Choose the method to be used to supply temperature data, and perform the required setup.
Method
Description Setup
Internal RTD
temperature
data
Temperature data from the
on-board temperature sensor
(RTD) is used.
a. Choose Device Settings → Process Configuration → Optional
Setup → External Pressure/Temperature → Temperature.
b. Set External Temperature to Disable.
Polling The meter polls an external
device for temperature data.
This data will be available in
addition to the internal RTD
temperature data.
a. Choose Device Settings → Process Configuration → Optional
Setup → External Pressure/Temperature → Temperature.
b. Set External Temperature to Enable.
c. Choose Device Settings → Process Configuration → Optional
Setup → External Pressure/Temperature → External Polling.
d. Set Poll Control to Poll as Primary or Poll as Secondary.
Option Description
Poll as Primary No other Primary HART masters
will be on the network. A field
communicator is not a HART master.
Poll as Secondary No other Secondary HART masters
will be on the network. A field
communicator is not a HART master.
e. Choose an unused polling slot.
f. Set External Device Tag to the HART tag of the external
temperature device.
g. Set Polled Variable to Temperature.
Configure process measurement applications Configuration and Use Manual
May2024 MS-00809-0200-1600
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