Inaccurate Flow Rate - Emerson Micro Motion 5700 Configuration And Use Manual

Troubleshooting
March 2019
6. For sensors with a junction box, check for moisture in the junction box.
7. Purge the sensor tubes.
8. Check for open or leaking valves or seals.
9. Check for sources of vibration.
10. Verify damping configuration.
11. Verify that the measurement units are configured correctly for your application.
12. Check for two-phase flow.
13. Check for radio frequency interference.
14. Contact customer service.

17.8.5 Inaccurate flow rate

Cause
• Wiring problem
• Inappropriate measurement unit
• Incorrect flow calibration factor
• Incorrect meter factor
• Incorrect density calibration factors
• Incorrect grounding
• Two-phase flow
• Problem with receiving device
• Incorrect sensor zero
Recommended actions
1. Check the wiring between the sensor and the transmitter.
2. Verify that the measurement units are configured correctly for your application.
3. Verify all of the characterization or calibration parameters. See the sensor tag or the calibration sheet
for your meter.
4. Zero the meter.
5. Check the grounding of all components.
6. Check for two-phase flow.
7. Verify the receiving device, and the wiring between the transmitter and the receiving device.
8. Check the sensor coils for electrical shorts. If you find problems, replace the sensor
9. Replace the core processor or transmitter.
254 Micro Motion Model 5700 Transmitters with Configurable Outputs
Configuration and Use Manual
MMI-20025166