
Using ProLink
®
Software with Micro Motion
®
Transmitters
61
View Menu: Status
continued
Critical indicators
Configure Menu:
Transmitter Outputs
Configure Menu:
Transmitter Information
Configure Menu: EventsView Menu: Status
Configure Menu:
Characterize
Configure Menu:
Transmitter Variables
Table 7-6. Troubleshooting overrange conditions
Status indicators
Resistance at sensor
terminals Cause Corrective action(s)
Sensor Failure
Input Overrange
Open or short from
green to white
• Moisture in sensor case or
junction box
• Open or short left pickoff
• If sensor junction box contains
moisture, check for leaking
junction box, conduit, or conduit
seals
• If sensor junction box does not
contain moisture, return sensor to
factory
Open or short from
blue to gray
• Moisture in sensor case or
junction box
• Open or short right pickoff
Sensor Failure
Input Overrange
Zero Too Noisy
Values within ranges
listed in
Table 7-4
,
page 60
Transmitter cannot calculate
offset of flow signal
• Eliminate pipe stress, vibration, or
mechanical noise
• If using volume flow units, verify
density measurement
• Verify flow calibration
• Eliminate noise, then re-zero
• Shut off flow, then re-zero
Sensor Failure
Drive Overrange
Open or short from
red to brown
• Moisture in sensor case or
junction box
• Open or short drive coil
• If sensor junction box contains
moisture, check for leaking
junction box, conduit, or conduit
seals
• If sensor junction box does not
contain moisture, return sensor to
factory
Sensor Failure
Drive Overrange
Input Overrange
Values within ranges
listed in
Table 7-4
,
page 60
Flow rate outside sensor limit • Bring flow rate within sensor limit
• Monitor flow rate
• If using volume flow units, verify
density measurement
• Verify flow calibration
Sensor Failure
Mass Flow Overrange
Volume Flow Overrange
Values within ranges
listed in
Table 7-4
,
page 60
Mass or volume flow rate outside
sensor limit
Sensor Failure
Drive Overrange
Density Overrange
Values within ranges
listed in
Table 7-4
,
page 60
• Inappropriate density factors
• Process density above 5 g/cc
for an RFT9739
• Process density above 10 g/cc
for an RFT9712 or RFT9729
• Process density above 2 g/cc
for an IFT9701 or IFT9703
• Erratic process density has
caused flow tubes to stop
vibrating
• Plugged flow tube
• Perform density calibration or
density characterization
• Bring density within sensor limit
• Monitor density
• Eliminate pipe stress, vibration, or
mechanical noise
• Purge flow tubes
Sensor Failure
Temperature Overrange
Values within ranges
listed in
Table 7-4
,
page 60
Temperature outside sensor limit • Bring temperature within sensor
limit
• Monitor temperature
Open or short from
violet to yellow
• Moisture in sensor case or
junction box
• Open or short lead length
compensator
• If sensor junction box contains
moisture, check for leaking
junction box, conduit, or conduit
seals
• If sensor junction box does not
contain moisture, return sensor to
factory
Open or short from
violet to orange
• Moisture in sensor case or
junction box
• Open or short RTD
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