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ABB LMT100 - Page 64

ABB LMT100
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64
LMT SERIES | MAGNETOSTRICTIVE LEVEL TRANSMITTER | OI/LMT100/200-EN REV.B
Error Message Tx LCD Message Possible Cause Suggested Action Tx Response
 Current Output in
Fixed Mode
Output current is in fixed
mode. This could be due to the
device being used in multi-
drop mode or a simulation.
Using a HART configurator (DTM - Hand held)
place device back in normal operating mode
(Remove input simulation)
Current set to fixed
value
 NV Replace Error The Electronics or the Sensor
have been changed but the
replacement operation has not
been executed.
The replacement oepration must be executed. Set


depending on which component (Electronics or
Sensor) has been replaced. Power cycle the


Analog signal to alarm
The replacement oepration must be executed.
Only the data of the electronics can be copied to




The Electronics or the Sensor
have been changed. The
replacement has been enabled
but with the wrong direction.

Change the replacement direction (if possible).




 HMI Validation Test
Failure
HMI failed validation test Replace HMI No effect
 Amb. Temp Out of
Range
Ambient temperature too high
or too low
Check ambient temperature No effect
Temperature compensation
saturated high or low
 Electronics Insuff
Input Voltage
Power supply too high or too
low
Check power supply voltage at the device

No effect
 Level Sensor Out of
Limits
Result of Level measurement is
outside of the valid and
expected range
Using a HART configurator (DTM - Hand held) or
the local HMI, navigate to the Diagnostics ->
Waveform display and confirm the quality of the
signal. The signal peak should visibly cross the
threshold line and should measure approximately

support or a replacement if the condition
persists.
Analog signal to alarm
 Process Temperature
Warning
Process temperature above or
below warning limits
Check process conditions.The compatibility of
level transmitter model and process conditions
has to be checked. Probably a different
transmitter type is required.
No effect
 Process Temperature
Alarm
Process temperature above or
below alarm limits
Check process conditions.The compatibility of
level transmitter model and process conditions
has to be checked. Probably a different
transmitter type is required.
No effect
 Temperature Sensor
Out of Limits
Result of temperature
measurement above or below
process range
Restart the device. If the condition persists
contact service for a replacement.
The compatibility of level transmitter model and
process conditions has to be checked. Probably a
different transmitter type is required.
No effect
 Process Media
Warning
Process value above high limit
or below low limit
Check process conditions and/or device
configuration. The compatibility of level
transmitter model and process conditions has to
be checked. Probably a different transmitter type
is required.
No effect
 Process Media Alarm Process value above high high
limit or below low low limit
Check process conditions and/or device
configuration. The compatibility of level
transmitter model and process conditions has to
be checked. Probably a different transmitter type
is required.
No effect
 Level Sensor Out of
Range
Primary sensor reading above
or below range values
Check process conditions and /or device
configuration. The compatibility of level
transmitter model and process conditions has to
be checked. Probably a different transmitter type
is required.
No effect

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