ECOLAB LMIT09 DPV1 Betriebsanleitung Seite 211

Troubleshooting
Error messages on the display
Fault description
Configuration error
Calibration data error
Communication error
Temperature sensor
fault
Measuring cell fault
TCa and dT error
Time error
*Current output
conductivity
*Current output
temperature
Only if the conductivity and/or temperature current output monitoring is set to ON.
*
NOTICE!
If a fault message is issued on the display, the alarm relay is also activated
or deactivated (depending on the configuration in the basic settings).
In the event of a fault in the conductivity or temperature circuit, the
configured failure current is output at the corresponding current output.
If a fault cannot be rectified using the above list, send us the device and
measuring cell.
Following a repair by the factory, the device will be reset to the factory
settings (see
417101561 Rev. 4-06.2021
Cause
Corrupt data in the memory.
Incorrect or corrupt data in the
memory.
Communications interrupted
between the basic PCB and the
display PCB.
Temperature sensor faulty or
incorrectly connected.
Transducer faulty or incorrectly
connected.
Temperature compensation
thresholds exceeded.
Incorrect time/date, battery
faulty.
Interruption due to load
resistance too high. Short
circuit of output transistor.
Interruption due to load
resistance too high. Short
circuit of output transistor.
Ä Chapter 8.10 'Factory settings' on page 95).
Remedy
Use the menu to re-write the memory; if
the error re-occurs, replace the unit.
Use the menu to re-write the memory; if
the error re-occurs, replace the unit.
Check the plug connectors for correct
connection; if the error re-occurs,
replace the unit.
Check the connection (core wire
colours) and replace the transducer if
necessary.
Check the connection (core wire
colours) and replace the transducer if
necessary.
Reduce TCa and return temperature to
values within the thresholds.
Reset the date/time. If the error re-
occurs, replace the device.
Check connections. Check the load
resistance. If the error re-occurs,
replace the device.
Check connections. Check the load
resistance. If the error re-occurs,
replace the device.
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