Hach 8398 Serie Manual Del Usuario página 15

Option
Reset
Factory calibration
Measurement diagnostic
information
7.4 Error list
When an error occurs, the reading on the measurement screen flashes and all outputs are held when
specified in the Controller > Outputs menu. The screen changes to red. The diagnostics bar shows
the error. Push on the diagnostic bar to show the errors and warnings. As an alternative, push the
main menu icon, then select Notifications > Errors.
A list of possible errors is shown in
Error
ADC failure
Sensor is missing.
Measurement value is
out of range.
7.5 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
Measurement is too high. The measured value is > 2 S/cm,
Measurement is too low.
Zero value is too high.
Zero value is too low.
Temperature is too high.
Temperature is too low.
Calibration is overdue.
Table 2 Diagnostics/Test menu (continued)
Description
Sets the Sensor days counter to zero and sets the calibration data to the
defaults.
Reset the Sensor days counter when the sensor is replaced.
For service use only
Shows diagnostic information about the current measurement.
Table 3.
Table 3 Error list
Description
The analog to digital
conversion failed.
The sensor is missing or
disconnected.
The sensor signal is outside of
the accepted limits.
Table 4.
Table 4 Warning list
Description
1,000,000 ppm, 200% or 20,000 ppt.
The measured value is < 0 μS/cm,
0 ppm, 0% or 0 ppt.
The zero calibration value is too high.
The zero calibration value is too low.
The measured temperature is >
200 °C.
The measured temperature is <
-20 °C.
The Calibration reminder time has
expired.
Resolution
Power off and power on the controller. Make sure that
the sensor module is fully inserted into the controller
connector. Contact technical support.
Examine the wiring and connections for the sensor
and for the module. Make sure that the terminal block
is fully inserted into the module.
Make sure that the Conductivity unit setting is set for
the correct measurement range.
Resolution
Make sure that the display format is set for
the correct measurement range.
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 sensor is configured for
the correct temperature element.
Calibrate the sensor.
English 15