Alert num-
ber Alert title Possible cause Recommended actions
A012 Zero Calibration
Failed: High
Many possible causes, such as too
much flow, especially forward flow,
through the sensor during a calibra-
tion procedure, or a zero result that
is too high. This alert is accompa-
nied by A010.
This alert will not clear until you cy-
cle power to the meter.
• Verify that there is no flow through the
sensor, cycle power to the meter, then
retry the procedure.
A013 Zero Calibration
Failed: Unstable
There was too much process insta-
bility during the calibration proce-
dure.
This alert will not clear until you cy-
cle power to the meter.
• Remove or reduce sources of electro-
mechanical noise (e.g., pumps, vibra-
tion, pipe stress), cycle power to the
meter, then retry the procedure.
A014 Transmitter Failure Many possible causes. • Ensure that all wiring compartment
covers are installed correctly.
• Ensure that all transmitter wiring meets
specifications and that all cable shields
are properly terminated.
• Check the grounding of all compo-
nents. See Section 10.3.
• Evaluate the environment for sources of
high electromagnetic interference
(EMI) and relocate the transmitter or
wiring as necessary.
• Contact Micro Motion.
A016 Sensor Temperature
(RTD) Failure
The value computed for the resist-
ance of the line RTD is outside lim-
its.
• Check your process conditions against
the values reported by the device.
• Contact Micro Motion.
A017 Sensor Case Tem-
perature (RTD) Fail-
ure
The values computed for the resist-
ance of the meter and case RTDs
are outside limits.
• Check your process conditions against
the values reported by the device. Tem-
perature should be between –200 °F
and +400 °F.
• Contact Micro Motion.
A020 Calibration Factors
Missing
Some calibration factors have not
been entered or are incorrect.
• Verify all of the characterization or cali-
bration parameters. See the sensor tag
or the calibration sheet for your meter.
A021 Transmitter/Sensor/
Software Mismatch
The configured board type does not
match the physical board.
• Verify all of the characterization or cali-
bration parameters. See the sensor tag
or the calibration sheet for your meter.
• Ensure that the correct board is instal-
led.
A029 Internal Electronics
Failure
This can indicate a loss of communi-
cation between the transmitter and
the display module.
• Cycle power to the meter.
• Replace the display module.
• Contact Micro Motion.
Troubleshooting
Configuration and Use Manual 145
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