12. Check for two-phase flow.
13. Check for radio frequency interference.
14. Contact customer service.
15.8.5 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.
15.9 Frequency Output problems
15.9.1 No FO
Cause
• Stopped totalizer
• Process condition below cutoff
• Fault condition if Fault Action is set to Internal Zero or Downscale
• Two-phase flow
• Flow in reverse direction from configured flow direction parameter
Configuration and Use Manual Troubleshooting
MMI-20048166 April 2019
Configuration and Use Manual 181
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