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Status alarms and recommended actions (continued)Table 10-2:
Alarm code Description Recommended actions
A005 Mass Flow Rate Overrange The sensor is signaling a flow rate that is out of range for the sen-
sor.
1.
If other alarms are present, resolve those alarm conditions
first. If the current alarm persists, continue with the recom-
mended actions.
2. Check your process conditions against the values reported
by the flowmeter.
3. Check for slug flow (two-phase flow).
a. Check for slug flow alarms. If slug flow is the problem,
alarms will be posted.
b. Check the process for cavitation, flashing, or leaks.
c. Monitor the density of your process fluid output under
normal process conditions.
A006 Characterization Required The calibration factors for the sensor have not been entered, or
the sensor type is incorrect, or the calibration factors are incor-
rect for the sensor type.
1.
Verify that all of the characterization parameters match the
data on the sensor tag.
2. Check the resistance of the LLC. (See Section 10.28.1.)
3. Check the Sensor Type parameter and make sure it matches
your sensor type.
4. If Sensor Type is Curved Tube, make sure that none of the pa-
rameters specific to Straight Tube sensors have been set.
5. If all of the parameters are correct and the alarm persists, re-
place the core processor.
Troubleshooting
146 Micro Motion
®
Model 1500 Transmitters with Analog Outputs