Hach CLF10sc Manuel D'utilisation page 19

Error Description
PH SLOPE FAIL The slope is outside of the -45 to
-65 mV/pH range.
PH OFFSET The offset is outside of ±60 mV.
FAIL
PH OFFSET The offset is outside of ±60 mV.
FAIL
TEMP TOO The temperature is less than 0 °C.
LOW
TEMP TOO The temperature is more than 100 °C.
HIGH
TEMP FAIL The offset is higher than 5.0 °C or
lower than -5.0 °C.
NO FLOW The flow level is too low.
7.3 Warning list
A warning does not affect the operation of menus, relays and outputs. A warning icon flashes and a
message is shown on the bottom of the measurement screen. To show the sensor warnings, push
the MENU key and select Sensor Diag, Warning List. A list of possible warnings is shown below.
Warning Description
CL CAL RECD A chlorine and/or pH calibration is
recommended.
The chlorine and/or pH measurement has
changed enough to cause a Cal Watch warning
alarm to occur. Refer to the sensor manuals for
more information.
CL CAL RECD A chlorine calibration is recommended.
Chlorine calibration data is not available (sensor
with default calibration data).
PH CAL RECD A pH calibration is recommended.
pH calibration data is not available (sensor with
default calibration data).
TEMP CAL A temperature calibration is recommended.
RECD
Temperature calibration data is not available
(sensor with default calibration data).
CL CAL TO DO The Sensor Days value for the chlorine sensor
is greater than the Cal Reminder value.
PH CAL TO DO The Sensor Days value for the pH sensor is
greater than the Cal Reminder value.
Table 2 Error list for the sensor (continued)
Table 3 Warning list for the sensor
Resolution
Clean the pH sensor, then repeat the
calibration with a fresh buffer or sample,
or replace the sensor.
Clean the pH sensor and then repeat
the calibration with a fresh buffer or
sample, or replace the sensor.
Clean the pH sensor and replace the
salt bridge and standard cell solution.
Repeat the calibration with a fresh
buffer or sample, or replace the sensor.
Calibrate the temperature or replace the
pH sensor.
Calibrate the temperature or replace the
pH sensor.
Increase the flow.
Resolution
Calibrate the chlorine sensor
and/or pH sensor.
Calibrate the chlorine sensor.
Calibrate the pH sensor.
Calibrate the temperature.
Calibrate the chlorine sensor.
Calibrate the pH sensor.
English 19