Emerson Micro Motion 1600 - Set up temperature and pressure data for API Referral using the display

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.
Acceptable limits:
• 230.0 x 10
-6
to 930.0 x 10
-6
per °F
• 414.0 x 10
-6
to 1674.0 x 10
-6
per °C
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.
Set up temperature and pressure data for API Referral using the display
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.
Prerequisites
If you plan to poll an external device, the primary mA Output (Channel A) must be wired to support HART
®
communications.
The pressure measurement must be gauge pressure, not atmospheric pressure.
The pressure device must use the pressure unit that is configured in the transmitter.
If you are using an external temperature device, it must use the temperature unit that is configured in the
transmitter.
Procedure
1. Choose the method to be used to supply temperature data, and perform the required setup.
Configure process measurement applications Configuration and Use Manual
May2024 MS-00809-0200-1600
48 Emerson.com