Error List - Hach Ultrapure pH/ORP Module Manuel D'utilisation

Option
POLARIZATION
IMPED STATUS
SENSOR SIGNALS
SENSOR DAYS
RESET SENSOR

Error list

Errors may occur for various reasons. An error icon consists of an exclamation point within a circle.
When an error occurs, the error icon and the measurement screen flash alternately in the main
display. All outputs are held when specified in the controller menu. To view errors, push the menu
key and select DIAGNOSTICS. Then select the device to view any problems associated with that
device.
A list of possible errors is shown in
Error
ADC FAILURE
SAME BUFFER
SENSOR MISSING
TEMP MISSING
GLASS IMP LOW
Warning list
A warning icon consists of an exclamation point within a triangle. Warning icons appear on the right
of the main display below the measurement value. A warning does not affect the operation of menus,
relays and outputs. To view warnings, push the menu key and select DIAGNOSTICS. Then select
the device to view any problems associated with that device. The warning icon will no longer be
displayed once the problem has been corrected or acknowledged.
A list of possible warnings is shown in
Warning
PH TOO HIGH
ORP TOO HIGH
16 English
Table 3 Sensor DIAG/TEST menu (continued)
Table 4.
Table 4 Error list for pH and ORP sensors
Description
The analog to digital conversion
failed
The buffers for 2 point buffer
calibration have the same value
The sensor is missing or
disconnected
The temperature sensor is missing
The glass bulb is broken or reached
end of life
Table 5.
Table 5 Warning list for pH and ORP sensors
Description
The measured pH is > 14
The measured ORP value is >
2100 mV
Description
Contacting conductivity sensors only. Shows
information about the electrode polarization, the cable
capacitance and the time before the next
measurement.
For pH sensors only—Enable or disable impedance
measurements.
Shows the current sensor signal information.
Shows the number of days that the sensor has been in
operation.
Resets the number of days that the sensor has been in
operation and resets all calibration data to defaults.
Resolution
Power off and power on the
controller. Call technical support.
Make sure the two buffers used for
calibration are different.
Examine the wiring and connections
for the sensor and for the module.
Examine the wiring for the
temperature sensor. Make sure that
the correct temperature element is
selected.
Replace the sensor. Call technical
support.
Resolution
Calibrate or replace the sensor.