4. If the concentration measurement application is displayed in the list, choose Concentration
Measurement and ensure that Enabled/Disabled is set to Disabled.
The concentration measurement application and the API referral application cannot be enabled
simultaneously.
5. Enable API referral.
a) Choose Menu > Configuration > Process Measurement > API Referral.
b) Set Enabled/Disabled to Enabled.
Related information
View the licensed features
Configure API referral using the display
The API referral parameters specify the API table, measurement units, and reference values to be used in
referred density calculations.
Prerequisites
You will need API documentation for the API table that you select.
Depending on your API table, you may need to know the thermal expansion coefficient (TEC) for your process
fluid.
You must know the reference temperature and reference pressure that you want to use.
Procedure
1. Choose Menu > Configure > Process Measurement > API Referral.
2. Set API Table to the API table that you want to use to calculate referred density.
Each API table is associated with a specific set of equations. Choose your API table based on your
process fluid and the measurement unit that you want to use for referred density.
Your choice also determines the API table that will be used to calculate the correction factor for volume
(CTPL or CTL).
3. 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.
4. If you chose a C table, enter Thermal Expansion Coefficient (TEC) for your process fluid.
5. 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.
6. 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.
Configure process measurement applications Configuration and Use Manual
April 2019 MMI-20048166
44 Micro Motion 4200 Transmitters
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