Micro Motion CDM100M, Configuration And Use Manual

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10.19 Check
mA Output Fault Action
mA Output Fault Action controls the behavior of the mA output if the transmitter encounters
an internal fault condition. If the mA output is reporting a constant value below 4 mA or
above 20 mA, the transmitter may be in a fault condition.
1.
Check the status alerts for active fault conditions.
2. If there are active fault conditions, the transmitter is performing correctly. If you
want to change its behavior, consider the following options:
• Change the setting of mA Output Fault Action .
• For the relevant status alerts, change the setting of Alert Severity to Ignore .
Restriction
For some status alerts,
Alert Severity
is not configurable.
3. If there are no active fault conditions, continue troubleshooting.
Related information
Configure
mA Output Fault Action
and
mA Output Fault Level
10.20 Check for radio frequency interference (RFI)
The meter's TPS output or discrete output can be affected by radio frequency interference
(RFI). Possible sources of RFI include a source of radio emissions, or a large transformer,
pump, or motor that can generate a strong electromagnetic field. Several methods to
reduce RFI are available. Use one or more of the following suggestions, as appropriate to
your installation.
Procedure
• Use shielded cable between the output and the receiving device.
- Terminate the shielding at the receiving device. If this is impossible, terminate
the shielding at the cable gland or conduit fitting.
- Do not terminate the shielding inside the wiring compartment.
- 360-degree termination of shielding is unnecessary.
• Eliminate the RFI source.
• Move the meter.
10.21 Check
Flow Direction
If Flow Direction is set inappropriately for your process, the meter may report velocity data
that is not appropriate for your requirements.
Troubleshooting
Configuration and Use Manual 161