Your choice also determines the API table that will be used to calculate the correction factor for volume
(CTPL or CTL).
Restriction
Not all combinations are supported by the API referral application. See the list of API tables in this
manual.
4. If you chose a C table, enter Thermal Expansion Coefficient (TEC) for your process fluid.
5. Refer to the API documentation and confirm your table selection.
a) Verify that your process fluid falls within range for line density, line temperature, and line
pressure.
b) Verify that the referred density range of the selected table is adequate for your application.
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.
Related information
API tables supported by the API referral application
Set up temperature and pressure data for API referral using the 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.
Tip
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 Configure > Manual Setup > Measurements >
Optional Setup > External Pressure/Temperature >
Temperature.
b. Set External Temperature to Disable.
Configuration and Use Manual Configure process measurement applications
MMI-20048166 April 2019
Configuration and Use Manual 53
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