Emerson Micro Motion 2700 Configuration And Use Manual page 118

Troubleshooting
Alert num-
ber Alert title
A004 Temperature Over-
range
A005 Mass Flow Rate
Overrange
A006 Characterization Re-
quired
A008 Density Overrange
110
Possible cause
The RTD resistance is out of range
for the sensor. The tube RTD resist-
ance is out of range for the sensor.
The measured flow rate is greater
than the maximum flow rate of the
sensor (ΔT greater than 200 µs).
Calibration factors have not been
entered, or the sensor type is incor-
rect, or the calibration factors are
incorrect for the sensor type.
The line density is greater than
3 3
10 g/cm (10000 kg/m .
Micro Motion Model 2700 Transmitters with FOUNDATION Fieldbus
Recommended actions
• Check your process conditions against
the values reported by the device.
• Verify temperature characterization or
calibration parameters.
• Verify that internal wiring is secure and
that there are no internal electrical
problems.
• Check the wiring between the sensor
and the transmitter.
• Contact customer support.
• If other alerts are present, resolve those
alert conditions first. If the current alert
persists, continue with the recommen-
ded actions.
• Check your process conditions against
the values reported by the device.
• Check for two-phase flow.
• Verify all of the characterization or cali-
bration parameters. See the sensor tag
or the calibration sheet for your meter.
• 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.
• Verify that internal wiring is secure and
that there are no internal electrical
problems.
• Replace the core processor.
• Contact customer support.
• If other alerts are present, resolve those
alert conditions first. If the current alert
persists, continue with the recommen-
ded actions.
• Check for air in the flow tubes, tubes
not filled, foreign material in the tubes,
coating in the tubes, or other process
problems.
• Check for two-phase flow.
• Verify all of the characterization or cali-
bration parameters. See the sensor tag
or the calibration sheet for your meter.
• Check the drive gain and the pickoff
voltage.
• Perform Smart Meter Verification.
• Perform density calibration.
• Contact customer support.