Flow Measurement Problems - Emerson Micro Motion 5700 Configuration And Use Manual

Configuration and Use Manual
MMI-20039472
16.6.2 Loop test failed
Cause
• Output not powered
• Power supply problem
• Wiring problem
• Circuit failure
Recommended actions
1. Check the power supply and power supply wiring.
2. Verify the output wiring.
3. Contact customer service.
16.6.3 Discrete Output readings reversed
Cause
• Wiring problem
• Configuration does not match wiring
Recommended actions
1. Verify the output wiring.
2. Ensure that Discrete Output Polarity is set correctly.

16.7 Flow measurement problems

16.7.1 Flow rate reported as zero when flow is present
Cause
The process condition is below cutoff.
Recommended actions
Verify the cutoffs.
16.7.2 Flow indication at no flow conditions or zero offset
Cause
• Misaligned piping (especially in new installations)
• Open or leaking valve
• Incorrect sensor zero
Recommended actions
1. Verify all of the characterization or calibration parameters.
Configuration and Use Manual
Troubleshooting
June 2019
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