Low Pickoff Voltage - Emerson Micro Motion 2700 Configuration And Use Manual

Troubleshooting
6.12.5

Low pickoff voltage

The causes and possible solutions of low pickoff voltage are listed in Table 6-9.
Table 6-9 Low pickoff voltage causes and solutions
Cause
Faulty wiring runs between the sensor and core
processor
Process flow rate beyond the limits of the sensor
Slug flow
No tube vibration in sensor
Process beyond the limits of the sensor
Moisture in the sensor electronics
The sensor is damaged
106
Solution
Refer to the sensor manual and transmitter installation
manual.
Verify that the process flow rate is not out of range of
the sensor
Verify the flow tubes are completely filled with process
fluid, and that slug flow limits and duration are properly
configured. See Section 4.12.
Check for plugging.
Ensure sensor is free to vibrate (no mechanical
binding).
Verify wiring.
Test coils at sensor. See Section 6.14.
Verify that the process flow rate is not out of range of
the sensor.
Eliminate the moisture in the sensor electronics.
Contact Micro Motion Customer Service.
Model 2700 Transmitter with PROFIBUS-PA