Emerson Micro Motion 1600 - 16.7.3 Discrete Output readings reversed; 16.8 Flow measurement troubleshooting; 16.8.1 Flow rate reported as zero when flow is present; 16.8.2 Flow indication at no flow conditions or zero offset

16.7.3 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.
16.8 Flow measurement troubleshooting
16.8.1 Flow rate reported as zero when flow is present
Cause
• The process condition is below cutoff.
• Two-phase flow
Recommended action
1. Verify the cutoffs.
2. Check live density against the two-phase flow low and high limits.
16.8.2 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.
See the sensor tag or the calibration sheet for your meter.
2. If the reading is not excessively high, review the live zero. You may need to restore the factory zero.
3. Check for open or leaking valves or seals.
4. Check for mounting stress on the sensor (e.g., sensor being used to support piping, misaligned
piping).
5. Contact customer service.
16.8.3 Erratic non-zero flow rate at no-flow conditions
Cause
• Leaking valve or seal
• Two-phase flow
• Cutoff set to zero
• Incorrect sensor orientation
Troubleshooting Configuration and Use Manual
May2024 MS-00809-0200-1600
184 Emerson.com