Event Log - Hach LANGE 9181600 Bedienungsanleitung

Warning Description
PH CAL TO DO The Sensor Days value for the pH sensor is greater than
the Cal Reminder value.
TEMP CAL TO DO The Sensor Days value for the temperature sensor is
greater than the Cal Reminder value.
PH MAINT RECD pH sensor maintenance is recommended.
The slope is outside of the -50 to -61 mV/pH range.
PH MAINT RECD pH sensor maintenance is recommended.
The offset is outside of ±45 mV but within ±60 mV.
T MAINT RECD The temperature offset is outside of ±3 °C but within
±5 °C.

Event log

The controller provides one event log for each sensor. The event log stores a variety of events that
occur on the devices such as calibrations done, calibration options changed, etc. A list of possible
events is shown below. The event log can be read out in a CSV format. For instructions on
downloading the logs, refer to the controller user manual.
Event
Power On
Flash Failure
1pointpHCalibration_Start
1pointpHCalibration_End
2pointpHCalibration_Start
2pointpHCalibration_End
1pointBufferpHCalibration_Start Start of one-point buffer calibration for pH
1pointBufferpHCalibration_End
2pointBufferpHCalibration_Start Start of two-point buffer calibration for pH
2pointBufferpHCalibration_End
TempCalibration_Start
TempCalibration_End
pHCalSetDefault
TempCalSetDefault
AllCalSetDefault
pHCalOptionChanged
TempCalOptionChanged
SensorConfChanged
ResetpH CalHist
18 English
Table 4 Warning list for the sensor (continued)
Table 5 Event log
Description
The power was turned on.
The external flash has failed or is corrupted.
Start of one-point sample calibration for pH
End of one-point sample calibration for pH
Start of two-point sample calibration for pH
End of two-point sample calibration for pH
End of one-point buffer calibration for pH
End of two-point buffer calibration for pH
Start of temperature calibration
End of temperature calibration
The pH calibration data was reset to the default.
The temperature calibration data was reset to the default.
All sensor calibration data was reset to the default.
The pH calibration option was changed.
The temperature calibration option was changed.
The sensor configuration was changed.
The pH calibration history was reset.
Resolution
Calibrate the pH sensor.
Calibrate the temperature.
Clean the pH sensor, then
repeat the calibration with a
fresh buffer or sample, or
replace the sensor.
Clean the sensor and then
repeat the calibration, or replace
the sensor.
Calibrate the temperature.