Adjust Concentration Measurement With Trim Offset - Emerson Micro Motion 5700 Configuration And Use Manual

Measurement support
March 2019
14.6.3 Perform a D1 and D2 density calibration using a web browser
Procedure
1. Read the Prerequisites in
done so.
2. Close the shutoff valve downstream from the sensor.
3. Fill the sensor with D1 fluid.
4. Choose Service Tools > Verification and Calibration > Point 1 (Air)
5. Enter the correct value for Density of Calibration Fluid.
6. Click Start Calibration.
7. Wait for the calibration process to complete.
8. Fill the sensor with D2 fluid.
9. Choose Service Tools > Verification and Calibration > Point 2 (Water)
10. Enter the correct value for Density of Calibration Fluid.
11. Click Start Calibration.
12. Wait for the calibration process to complete.
14.7 Adjust concentration measurement with Trim
Offset
Trim Offset adjusts the meter's concentration measurement to match a reference value.
Tip
You can adjust concentration measurement by applying the trim offset only, or by applying both the trim
offset and the trim slope. For most applications, the trim offset is sufficient.
Prerequisites
Ensure that the active matrix is the one that you want to trim. You can set the offset separately for each
matrix on your transmitter.
You must be able to take a sample of your process fluid and obtain a laboratory concentration value at line
density and line temperature.
Procedure
1. Take a concentration reading from the meter, and record line density and line temperature.
2. Take a sample of the process fluid and obtain a laboratory value for concentration at line density and
line temperature, in the units used by the meter.
3. Subtract the meter value from the laboratory value.
4. Enter the result as the trim offset.
• Using ProLink III: Choose Device Tools > Configuration > Process Measurement > Concentration
Measurement, set Matrix Being Configured to your matrix, and enter Trim Offset.
5. Take another concentration reading from the meter, and compare it to the laboratory value.
• If the two values are acceptably close, the trim is complete.
174
Perform a (standard) D1 and D2 density calibration
Configuration and Use Manual
if you have not already
Micro Motion Model 5700 with Ethernet Transmitters
MMI-20029769