Emerson Micro Motion 5700 Configuration And Use Manual page 214

Troubleshooting
March 2019
17.12.10 [019] RAM Error (Transmitter)
Alert
Electronics Failed
Cause
There is a ROM checksum mismatch in the transmitter or the RAM address location cannot be written in the
transmitter. This alert will not clear until you reboot or power cycle the transmitter.
Recommended actions
1. Ensure that all wiring compartment covers are installed correctly.
2. Ensure that all transmitter wiring meets specifications and that all cable shields are properly
terminated.
3. Check the drain wires.
a) Verify that the drain wires from the 4-wire cable are properly landed.
b) Verify that the drain wires are landed outside the core processor housing.
c) If the drain wires are landed inside the core processor housing, cover them by the foil shield for
their full length until they land under the ground screw.
4. Ensure that all meter components are grounded properly.
5. Evaluate the environment for sources of high electromagnetic interference (EMI) and relocate the
transmitter or wiring as necessary.
6. Reboot or power-cycle the transmitter to see if the alert clears.
7. If the alert persists, replace the transmitter.
17.12.11 [020] Calibration Factors Missing
Alert
Configuration Error
Cause
Some calibration factors have not been entered or are incorrect.
Recommended actions
1. Verify characterization parameters (specifically Flow Cal Factor and K1 values). Refer to
the meter (if required).
2. Verify the setting of the Sensor Type parameter.
3. If Sensor Type = Curved Tube, ensure that no parameters specific to Straight Tube have been set.
4. Check the feedthrough pins. If you find problems, replace the sensor.
Contact customer service for assistance.
5. Check the core processor housing for moisture, corrosion, or verdigris.
6. Check the sensor coils for electrical shorts. If you find problems, replace the sensor.
214
Configuration and Use Manual
Micro Motion Model 5700 with Ethernet Transmitters
MMI-20029769
Characterize