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130 Micro Motion
®
Model 2400S Transmitters for PROFIBUS-DP
Troubleshooting
A013 Process too Noisy to
Perform Auto Zero
See A010 • Remove or reduce sources of electromechanical
noise, then retry. Sources of noise include:
- Mechanical pumps
- Pipe stress at sensor
- Electrical interference
- Vibration effects from nearby machinery
• Cycle power to the flowmeter, then retry.
• If appropriate, restore the factory zero to return the
flowmeter to operation.
Zero Too Noisy
A014 Transmitter Failed Many possible causes • Cycle power to the flowmeter.
• The transmitter might need service. Contact Micro
Motion.
Transmitter Failed
A016 Line RTD Temperature
Out-Of-Range
The value computed for
the resistance of the Line
RTD is outside limits
• Check the sensor RTD circuitry. See Section 11.21.
• Verify that process temperature is within range of
sensor and transmitter.
• If the problem persists, contact Micro Motion.
Line RTD Temperature
Out-of-Range
A017 Meter RTD Temperature
Out-Of-Range
The value computed for
the resistance of the
Meter/Case RTD is
outside limits
• Check the sensor RTD circuitry. See Section 11.21.
• Verify that process temperature is within range of
sensor and transmitter.
• Check the characterization. Specifically, verify the
FCF and K1 values. See Section 6.2.
• If the problem persists, contact Micro Motion.
Meter RTD Temperature
Out-of-Range
A020 Calibration Factors
Unentered
The flow calibration factor
and/or K1 has not been
entered since the last
master reset
• Check the characterization. Specifically, verify the
FCF and K1 values. See Section 6.2.
• If the problem persists, contact Micro Motion.
Calibration Factors
Unentered (FlowCal)
A021 Unrecognized/
Unentered Sensor Type
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 6.2.
• Check the sensor RTD circuitry. See Section 11.21.
• 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 Type
A031 Undefined The transmitter is not
receiving enough power
• Check power supply to transmitter. See
Section 11.7.1.
Low Power
A032
(2)
Meter Verification Fault
Alarm
Meter verification in
progress, with outputs set
to fault
• Allow the procedure to complete.
• If desired, abort the procedure and restart with
outputs set to last measured value.
Meter
Verification/Outputs In
Fault
A032
(3)
Outputs Fixed during
Meter Verification
Meter verification in
progress, with outputs set
to Fault or Last Measured
Value.
• Allow the procedure to complete.
• If desired, abort the procedure and restart with
outputs set to Continue Measurement.
Meter Verification In
Progress and Outputs
Fixed
Table 11-2 Status alarms and remedies continued
Alarm
code Message
(1)
Cause Suggested remedy