Hach D3433B8.99 User Manual page 16

A list of possible errors is shown in
Error
Conductivity is too
high.
Conductivity is too
low.
Zero is too high.
Zero is too low.
Temperature is too
high.
Temperature is too
low.
ADC failure
Sensor is missing.
Measurement value
is out of range.
6.5 Warning list
A warning does not affect the operation of menus, relays and outputs. The screen changes to an
amber color. The diagnostics bar shows the warning. Push on the diagnostic bar to show the errors
and warnings. As an alternative, push the main menu icon, then select Notifications > Warnings.
A list of possible warnings is shown in
Warning
Zero is too high.
Zero is too low.
Temperature is too
high.
Temperature is too low.
Calibration is overdue.
16 English
Table 5.
Table 5 Error list
Description
• The measured value is not within
the range selected for the
Conductivity unit setting.
• The measured value is >
2,000,000 µS/cm, 1,000,000 ppm or
20,000 ppt.
The measured value is < 0 µS/cm,
0 ppm or 0 ppt.
The zero calibration value is
> 500,000 counts.
The zero calibration value is
< –500,000 counts.
The measured temperature is
> 130 °C.
The measured temperature is
< –10 °C.
The analog to digital conversion failed.
The sensor is missing or disconnected.
The sensor signal is outside of the
accepted limits for the cell constant
that is used (0.01 and 0.05:
100 µS/cm; 0.5: 1000 µS/cm; 1:
2000 µS/cm; 5: 10,000 µS/cm; 10:
200,000 µS/cm).
Table
Table 6 Warning list
Description
The zero calibration value is
>300,000 counts.
The zero calibration value is
< –300,000 counts.
The measured temperature is >
100 °C.
The measured temperature is < 0 °C.
The Cal Reminder time has expired.
Resolution
Make sure that the sensor is configured for the
correct cell constant.
Make sure that the sensor is configured for the
correct cell constant.
Make sure that the sensor is held in air during
zero calibration and is not located near radio
frequency or electromagnetic interference.
Make sure that the cable is shielded by metal
conduit.
Make sure that the correct temperature
element is selected. Refer to
sensor on page 8.
Power off and power on the controller. Contact
technical support.
Examine the wiring and connections for the
sensor and for the module (or digital gateway).
Make sure that the terminal block is fully
inserted into the module, if applicable.
Make sure that the sensor is configured for the
correct cell constant.
6.
Resolution
Make sure that the sensor is held in air during
zero calibration and is not located near radio
frequency or electromagnetic interference.
Make sure that the cable is shielded by metal
conduit.
Make sure that the sensor is configured for
the correct temperature element.
Calibrate the sensor.
Configure the