ATI
Q45C2 2E Conductivity System
Part 6 – System Maintenance
O & M Manual
Revision K (01/07)
- 53 -
Fault List display messages (continued):
MESSAGE
DESCRIPTION
POSSIBLE CORRECTION
Cond Cal Fail
Failure of conductivity calibration.
Clean sensor, get fresh cal solutions and
redo calibration. If still failure, sensor
slope may be less than 70% or greater
than 130%. Perform sensor tests as
described in sensor manual. Replace
sensor if still failure.
TC Cal Fail
Failure of temperature calibration.
Clean sensor, check cal solution
temperature and repeat sensor temp
calibration. TC calibration function only
allows adjustments of +/- 6 ºC. If still
failure, perform sensor tests as described
in sensor manual. Replace sensor if still
failure. Note that TC offset may also be
adjusted using the Cal TC Factor function
(see Section 4.23) which involves no
calibration reference solutions.
EEprom Fail
Internal nonvolatile memory failure
System failure, consult factory.
Chcksum Fail
Internal software storage error.
System failure, consult factory.
Display Fail
Internal display driver fail.
System failure, consult factory.
Range Cal
Fail
Failure of factory temperature
calibration.
Consult factory.
