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Configuration and Use Manual 109
Troubleshooting
Operation AppendicesMaintenance and TroubleshootingCommissioning
A021 Unrecognized/
Unentered Sensor
Typ e
The sensor is recognized
as a straight tube but the
K1 value indicates a
curved tube, or vice versa.
• Check the characterization. Specifically, verify the FCF
and K1 values. See Section 4.2.
• Check the sensor RTD circuitry. See Section 10.24.
• If the problem persists, contact Micro Motion.
Incorrect Sensor
Type (K1)
A029 Internal
Communication
Failure
Transmitter electronics
failure
• Cycle power to the flowmeter.
• Contact Micro Motion.
PIC/Daughterboard
Communication
Failure
A030 Hardware/Software
Incompatible
The loaded software is not
compatible with the
programmed board type.
• Contact Micro Motion.
Incorrect Board
Typ e
A031 Undefined The transmitter is not
receiving enough power.
• Check power supply to transmitter. See Section 10.14.1.
• If the alarm is appearing and disappearing frequently,
check the mA Fault Action setting. If it is set to Upscale:
consider a lower setting for fault level, consider changing
the fault action to another setting (e.g., Internal Zero), or
consider increasing the power supply to the transmitter.
See Section 10.7.
Low Power
A033 Tube Not Full No signal from LPO or
RPO, suggesting that
sensor tubes are not
vibrating.
• Verify process. Check for air in the flow tubes, tubes not
filled, foreign material in tubes, or coating in tubes.
Tube Not Full
A100 Primary mA Output
Saturated
The calculated amount of
current output is outside of
the linear range.
• See Section 10.18.
Primary mA Output
Saturated
A101 Primary mA Output
Fixed
Non-zero HART address
configured, or user has
fixed the mA output.
• Check the HART address. If non-zero, enable Loop
Current Mode parameter. See Section 10.19.
• Exit mA output trim. See Section 7.4.
• Exit mA output loop test. See Section 7.3.
• Check to see if the output has been fixed via digital
communication.
Primary mA Output
Fed
A102 Drive Over-Range The drive power
(current/voltage) is at its
maximum
• Excessive drive gain. See Section 10.23.2.
• Check the sensor circuitry. See Section 10.24.
• If this is the only active alarm, it can be ignored. If desired,
reconfigure the alarm severity to Ignore (see
Section 5.3.1).
Drive Overrange
A104 Calibration-In-
Progress
A calibration procedure is
in progress.
• Allow the flowmeter to complete calibration.
• For zero calibration procedures, you may abort the
calibration, set the zero time parameter to a lower value,
and restart the calibration.
Calibration in
Progress
A105 Slug Flow The density has exceeded
the user-defined slug
(density) limits.
• See Section 10.17.
Slug Flow
Table 10-3 Status alarms and remedies continued
Alarm
code
Communicator
Cause Suggested remedyProLink II