Emerson Micro-Motion 2400S, Configuration And Use Manual, Page: 150 / 198

142 Micro Motion
®
Model 2400S Transmitters with Analog Outputs
Troubleshooting
11.13 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. See Section 11.3.
Unusual values for process variables may indicate a variety of different problems. Table 11-5 lists
several possible problems and suggested remedies.
A131
(2)
Meter Verification in
Progress Meter verification in
progress, with outputs set
to continue reporting
process data. • Allow the procedure to complete.
Meter Verification in
Progress
A132 Simulation Mode
Active Simulation mode is
enabled. • Disable output simulation. See Section 11.10.
Simulation Mode
Active
(1) Applies only to systems with the original version of the meter verification application.
(2) Applies only to systems with Smart Meter Verification.
Table 11-5 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 5.5.
Table 11-4 Status alarms and remedies continued
Alarm
code
Communicator
Cause Suggested remedy ProLink II