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110 Micro Motion
®
Model 2200S Transmitters
Troubleshooting
10.13 Checking process variables
Micro Motion suggests that you make a record of the process variables listed below, under normal
operating conditions. This will help you recognize when the process variables are unusually high or
low.
• Flow rate
• Density
•Temperature
• Tube frequency
• Pickoff voltage
•Drive gain
For troubleshooting, check the process variables under both normal flow and tubes-full no-flow
conditions. Except for flow rate, you should see little or no change between flow and no-flow
conditions. If you see a significant difference, record the values and contact Micro Motion customer
service for assistance.
Unusual values for process variables may indicate a variety of different problems. Table 10-4 lists
several possible problems and suggested remedies.
A106 Burst Mode
Enabled
Device is in HART burst
mode.
• No action required.
• If desired, reconfigure the alarm severity to Ignore (see
Section 5.3.1).
Burst Mode
Enabled/AI or AO
Simulate Active
A107 Power Reset
Occurred
The transmitter has been
restarted.
• No action required.
• If desired, reconfigure the alarm severity to Ignore (see
Section 5.3.1).
Power Reset
Occurred
A132 Simulation Mode
Active
Simulation mode is
enabled.
• Disable sensor simulation. See Section 7.5.
Simulation Mode
Active
Table 10-4 Process variables problems and remedies
Symptom Cause Suggested remedy
Steady non-zero flow rate under
no-flow conditions
Misaligned piping (especially in new
installations)
• Correct the piping.
Open or leaking valve • Check or correct the valve
mechanism.
Bad sensor zero • Rezero the flowmeter. See
Section 7.2.
Table 10-3 Status alarms and remedies continued
Alarm
code
Communicator
Cause Suggested remedyProLink II