Configuration and Use Manual
107
Troubleshooting
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10.11
Sensor simulation mode
Sensor simulation mode allows you to set values for mass flow, density, and temperature. The
transmitter will then behave as though it was receiving those values from the sensor. Sensor
simulation mode can be useful in a variety of troubleshooting situations. See Section 7.5 for
information on setting up and using sensor simulation mode.
10.12
Status alarms
Status alarms can be viewed with the display, ProLink II, or the Communicator. A list of status alarms
with the message displayed, possible causes, and suggested remedies is provided in Table 10-3.
Note: The display lists only the alarm code.
Note: Status alarms are not listed for alarms with Alarm Severity = Ignore, even if the alarm
condition is active. See Section 5.3.1 for information on configuring status alarm severity.
Before troubleshooting status alarms, first acknowledge all alarms (see Section 8.6). This will remove
inactive alarms from the list so that you can focus troubleshooting efforts on active alarms.
Table 10-3
Status alarms and remedies
Alarm
code
Communicator
Cause
Suggested remedy
ProLink II
A001
EEprom Checksum
Error (Core
Processor)
An uncorrectable
checksum mismatch has
been detected.
• Cycle power to the flowmeter.
• The flowmeter might need service. Contact Micro Motion.
(E)EPROM
Checksum Error
(CP)
A002
RAM Test Error
(Core Processor)
ROM checksum error or a
RAM location cannot be
written to.
• Cycle power to the flowmeter.
• The flowmeter might need service. Contact Micro Motion.
RAM Error (CP)
A003
Sensor Not
Responding (No
Tube Interrupt)
Continuity failure of drive
circuit, LPO, or RPO, or
LPO-RPO mismatch when
driving.
• Check for slug flow. See Section 10.17.
• Check the test points. See Section 10.23.
• Check the sensor circuitry. See Section 10.24.
• Check sensor tubes for plugging.
• If the problem persists, contact Micro Motion.
Sensor Failure
A004
Temperature
sensor out of range
Combination of A16 and
A17
• 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.
Temperature
Sensor Failure
A005
Input Over-Range
The measured flow has
exceeded the maximum
flow rate of the sensor
(
Δ
T > 200
μ
s)
• 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 10.17.
• Check the test points. See Section 10.23.
• Check the sensor circuitry. See Section 10.24.
• Check the sensor tubes for erosion.
• 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 4.2.
• If the problem persists, contact Micro Motion.
Not Configured
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