Emerson Micro Motion SGM - Temperature Measurement Problems

6. Verify the calibration factors.
7. Ensure that the cylinder is positioned correctly.
8. Check for leakage. See Check for leakage.
14.9.3 Density reading too high
Cause
• Condensation or deposition on the vibrating element or the internal walls of the cylinder
• Leakage from the sample path into the reference chamber
• Corrosion, dents, scratches, or other damage to the cylinder
Recommended actions
1. Check the coalescing filter. See Check the coalescing filter.
2. Check for leakage. See Check for leakage.
3. Replace the meter.
14.9.4 Density reading too low
Cause
• Leakage from the reference chamber to the atmosphere
• Leaks in the pipework or fittings
Recommended actions
Check for leakage. See Check for leakage.
14.10 Temperature measurement problems
14.10.1 Inaccurate temperature data from external device
Cause
• Wiring problem
• Problem with input configuration
• Problem with external device
Recommended actions
1. Verify the wiring between the transmitter and the external device.
2. Verify that the external device is operating correctly.
3. Verify the configuration of the temperature input.
4. Ensure that both devices are using the same measurement unit.
Troubleshooting Configuration and Use Manual
March 2021 MMI-20020954
134 Micro Motion Gas Specific Gravity Meters (SGM)