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108 Micro Motion
®
Model 2200S Transmitters
Troubleshooting
A008 Density Outside
Limits
The measured density has
exceeded 0–10 g/cm
3
• If other alarms are present (typically, A003, A006, A102, or
A105), resolve those alarm conditions first. If the A008
alarm persists, continue with the suggestions here.
• Verify process. Check for air in the flow tubes, tubes not
filled, foreign material in tubes, or coating in tubes.
• Check for slug flow. See Section 10.17.
• Check the sensor circuitry. See Section 10.24.
• Verify calibration factors in transmitter configuration. See
Section 4.2.
• Check the test points. See Section 10.23.
• If the problem persists, contact Micro Motion.
Density Overrange
A009 Transmitter
Initializing/Warming
Up
Transmitter in power-up
mode.
• Allow the flowmeter to warm up (approximately 30
seconds). The error should disappear once the flowmeter
is ready for normal operation.
• If alarm does not clear, make sure that the sensor is
completely full or completely empty.
• Check the sensor circuitry. See Section 10.24.
Transmitter
Initializing/Warming
Up
A010 Calibration Failure Mechanical zero: The
resulting zero was greater
than 3 μs.
Temperature/Density Cals:
many possible causes.
• If alarm appears during a transmitter zero, ensure that
there is no flow through the sensor, then retry.
• Cycle power to the flowmeter, then retry.
• If appropriate, restore the factory zero to return the
flowmeter to operation.
Calibration Failure
A011 Excess Calibration
Correction, Zero
too Low
See A10 • Ensure that there is no flow through the sensor, then retry.
• Cycle power to the flowmeter, then retry.
• If appropriate, restore the factory zero to return the
flowmeter to operation.
Zero Too Low
A012 Excess Calibration
Correction, Zero
too High
See A10 • Ensure that there is no flow through the sensor, then retry.
• Cycle power to the flowmeter, then retry.
• If appropriate, restore the factory zero to return the
flowmeter to operation.
Zero Too High
A013 Process too Noisy
to Perform Auto
Zero
See A10. • 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 10.24.
• Verify that process temperature is within range of sensor
and transmitter.
• If the problem persists, contact Micro Motion.
Line 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 4.2.
• If the problem persists, contact Micro Motion.
Calibration Factors
Unentered
(FlowCal)
Table 10-3 Status alarms and remedies continued
Alarm
code
Communicator
Cause Suggested remedyProLink II