Emerson Micro Motion 1500 Configuration And Use Manual page 132

Troubleshooting
Alert num-
ber Alert title
A021 Transmitter/Sensor/
Software Mismatch
A026 Sensor/Transmitter
Communications
Failure
A028 Core Processor
Write Failure
A030 Incorrect Board Type The loaded software is not compati-
A031 Low Power
126
Possible cause
The configured board type does not
match the physical board, or the
configured sensor type does not
match the physical sensor.
The transmitter has lost communi-
cation with the core processor.
There may be a problem with the
wiring or with either component.
This alert often occurs in conjunc-
tion with alerts A9 and A14.
Internal electronics failure.
ble with the programmed board
type.
The transmitter is not receiving
enough power.
This alert will not clear until you cy-
cle power to the meter.
Micro Motion Model 1500 Transmitters with Analog Outputs
Recommended actions
• Verify all of the characterization or cali-
bration parameters. See the sensor tag
or the calibration sheet for your meter.
• Ensure that the correct board is instal-
led.
• Verify the setting of the Sensor Type pa-
rameter.
• If Sensor Type=Curved Tube, ensure that
no parameters specific to Straight Tube
have been set.
• Check the wiring between the sensor
and the transmitter.
• Check for noise in the wiring or in the
transmitter environment.
• Verify that internal wiring is secure and
that there are no internal electrical
problems.
• Check the status LED on the core pro-
cessor.
• Check the resistance across core pro-
cessor terminals.
• If the alert persists:
- Replace the core processor.
- If that does not solve the problem,
restore the original core processor
and replace the transmitter.
- If that does not solve the problem,
replace both the transmitter and
the core processor.
• Cycle power to the meter.
• Contact customer support.
• Contact customer support.
• Check the wiring between the transmit-
ter and the core processor, then cycle
power to the meter.
• Check the wiring of the transmitter,
then cycle power to the meter.
• Verify that the transmitter is receiving
sufficient power.
- If it is not, correct the problem and
cycle power to the meter.
- If it is, this suggests that the trans-
mitter has an internal power issue.
Replace the transmitter.