Filter
Top Products
Configuration and Use Manual 129
Troubleshooting
Measurement Performance DefaultsTroubleshootingCompensation
A005 Input Over-Range The measured flow has
exceeded the maximum
flow rate of the sensor
(ΔT > 200 μs)
• If other alarms are present (typically, A003, A006,
A008, A102, or A105), resolve those alarm
conditions first. If the A005 alarm persists, continue
with the suggestions here.
• Verify process and check for slug flow. See
Section 11.14.
• Check the test points. See Section 11.20.
• Check the sensor circuitry. See Section 11.21.
• Check the sensor tubes for erosion. See
Section 11.15.
• If the problem persists, contact Micro Motion.
Input Overrange
A006 Transmitter Not
Characterized
Combination of A020 and
A021
• Check the characterization. Specifically, verify the
FCF and K1 values. See Section 6.2.
• If the problem persists, contact Micro Motion.
Not Configured
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
(see Section 11.15).
• Check for slug flow. See Section 11.14.
• Check the sensor circuitry. See Section 11.21.
• Verify calibration factors in transmitter configuration.
See Section 6.2.
• Check the test points. See Section 11.20.
• 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 11.21.
Transmitter
Initializing/Warming Up
A010 Calibration Failure Mechanical zero: The
resulting zero was greater
than 3 μs
Temperature/Density
calibrations: 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 A010 • 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 A010 • 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
Table 11-2 Status alarms and remedies continued
Alarm
code Message
(1)
Cause Suggested remedy