Error Messages; Warning Messages - Hach PAH500 Manuel De L'utilisateur

Section 6 Troubleshooting

6.1 Error messages

To show the sensor errors, select DIAGNOSTICS > [select sensor] > ERROR LIST. A list of possible
errors is shown in Table 2
measurement screen flashes and all outputs are held as specified in the controller menu.
Error
ADC FAILURE The analog to digital conversion failed.

6.2 Warning messages

To show the sensor warnings, select DIAGNOSTICS > [select sensor] > WARNING LIST. A list of
possible warnings is shown in
flashes and a message is shown on the bottom of the controller display. A warning does not affect
the operation of menus, relays and outputs.
Warning
SENS OUT The measured PAH is not within the
RANGE measurement range of the sensor.
CONC TOO HIGH The measured PAH is more than the
WARNING LEVEL setting.
REPLACE The sensor has been in operation
SENSOR for more than the expected service
life.
CLEAN SENSOR The number of days since the
sensor was cleaned is more than the
CLEAN DAYS setting.
CAL REQUIRED The number of days since the
sensor was calibrated is more than
the CAL DAYS setting.
FLASH FAILURE External flash memory failed.
6.3 Reminder messages
There are no reminder messages for the sensor.
6.4 Event log
The event log contains a large number of events that occur on the sensor. To show the event log,
select TEST/MAINT > DATALOG SETUP > VIEW DATA/EVENT LOG > [select sensor] > EVENT
LOG.
in the order of priority. When an error occurs, measurements stop, the
Table 2 Error messages
Description
Table 3 in the order of priority. When a warning occurs, a warning icon
Table 3 Warning messages
Description
Solution
Set the controller to off. Then, set the controller to on.
Solution
Clean the sensor. Refer to
on page 22
Or
Dilute the sample water to decrease the measured
PAH.
Clean the sensor. Refer to
on page 22
Or
Increase the WARNING LEVEL setting. Refer to
Configure the sensor unit
Replace the sensor unit. Then, select SENSOR
SETUP > [select sensor] > DIAG/TEST >
COUNTERS > RESET SENSOR.
Clean the sensor. Then, select SENSOR SETUP >
[select sensor] > DIAG/TEST > COUNTERS >
CLEAN SENSOR to set the CLEAN DAYS value to
zero. To change the cleaning interval, refer to the
CLEAN DAYS option in
on page 14.
Calibrate the sensor. To change the calibration
interval, refer to the CAL DAYS option in
the sensor unit on page 14.
Contact technical support.
Clean the sensor
Clean the sensor
on page 14.
Configure the sensor unit
Configure
English 23