Emerson Micro Motion SGM Series - Perform Temperature Calibration; Perform Temperature Calibration Using the Display

13.4 Perform temperature calibration
Temperature calibration establishes the relationship between the temperature of the
calibration fluids and the signal produced by the sensor.
• Perform temperature calibration using the display (Section 13.4.1)
• Perform temperature calibration using ProLink III (Section 13.4.2)
• Perform temperature calibration using the Field Communicator (Section 13.4.3)
13.4.1 Perform temperature calibration using the display
Temperature calibration establishes the relationship between the temperature of the
calibration fluids and the signal produced by the sensor.
Prerequisites
The temperature calibration is a two-part procedure: temperature offset calibration and
temperature slope calibration. The two parts must be performed without interruption, in
the order shown. Ensure that you are prepared to complete the process without
interruption. You will need a low-temperature calibration fluid and a high-temperature
calibration fluid. You will not see the effect of the calibration until both the temperature
offset calibration and the temperature slope calibration are complete.
Important
Consult customer support before performing a temperature calibration. Under normal
circumstances, the temperature circuit is stable and should not need an adjustment.
Procedure
1. Fill the sensor with the low-temperature fluid.
2. Wait until the sensor achieves thermal equilibrium.
3. Navigate to the calibration menu and enter it.
a. Activate Scroll and Select simultaneously.
b. Scroll to OFF-LINE MAINTand activate Select.
c. Scroll to OFF-LINE CAL and activate Select.
d. Scroll to CAL TEMP and activate Select.
4. Enter the temperature of the low-temperature fluid.
a. When CAL OFFSET TEMP is flashing, activate Select.
b. Enter the temperature value and save it.
5. Fill the sensor with the high-temperature fluid.
6. Wait until the sensor achieves thermal equilibrium.
7. Enter the temperature of the high-temperature fluid.
a. When CAL SLOPE TEMP is flashing, activate Select.
b. Enter the temperature value and save it.
Measurement support
Configuration and Use Manual 133