ATI
Model Q45CT Portable Transmitter
Part 6
– System Maintenance
35
O&M Manual
Rev-G (7/15)
The following messages will appear as items on the Fault List:
MESSAGE
DESCRIPTION
POSSIBLE CORRECTION
Sensor High
The raw signal from the sensor is too
high.
Check wiring connections to sensor.
Sensor Low
The raw signal from the sensor is too
low.
Check wiring connections to sensor.
Cond too High
The conductivity reading is > 2000 mS.
The conductivity reading is over operating
limits.
Temp High
The temperature reading is > 210 ºC.
The temperature reading is over operating
limits. Check wiring and expected temp
level. Perform RTD test as described in
sensor manual. Recalibrate sensor
temperature element if necessary.
Temp Low
The temperature reading is < -10 ºC
The temperature reading is under
operating limits. Check wiring and
expected temp level. Perform RTD test as
described in sensor manual. Recalibrate
sensor temperature element if necessary.
TC Error
TC may be open or shorted.
Check sensor wiring and perform RTD test
as described in sensor manual.
Clean Sensor
Foulants on sensor have reached the
level that they cannot be adjusted out.
Clean the sensor thoroughly.
