12.4.6 Troubleshooting the Smart Meter Verification test
If the Smart Meter Verification test fails, use the following table to determine the
appropriate course of action. Begin by reviewing the Smart Meter Verification results to
determine the specific test that failed.
Table 12-6: Troubleshooting the Smart Meter Verification diagnostic
Test Potential cause Corrective action
Transmitter
Verification Test
• Unstable flow reading
during the test
• Noise in the process
• Transmitter drift
• Faulty electronics
• Rerun Smart Meter Verification under
No Flow conditions
• Check the transmitter calibration with
the 8785 Calibration Standard
• Perform a digital trim
• Contact an Emerson Flow
representative (see back page)
Sensor Calibration
Verification
• Moisture in the sensor
terminal block
• Calibration shift caused by
heat cycling or vibration
• Rerun Smart Meter Verification
• Perform the sensor checks detailed in
Sensor troubleshooting
• Remove the sensor and send back for
evaluation and / or recalibration
• Retake sensor baseline at operating
temperature
Coil Circuit Health • Moisture in the sensor
terminal block
• Shorted Coil
• High temperature
application
• Long remote cable length
Electrode Circuit
Health
• Electrode resistance
baseline was not taken after
installation
• Test condition was not
selected properly
• Moisture in the sensor
terminal block
• Coated electrodes
• Shorted electrodes
12.5 Basic troubleshooting
When troubleshooting a magnetic flow meter, it is important to identify the issue. Table
12-7 provides common symptoms displayed by a magnetic flow meter that is not
functioning properly. This table provides potential causes and suggested corrective
actions for each symptom.
Reference Manual Troubleshooting
00809-0100-8782 November 2019
Reference Manual 135
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