37Main Menu5.7 Service instrument5.8 Service O 2 channelBoard InformationThis option is useful for troubleshooting purposes and displays information about the mother board,measurement board and batteryTemperature CheckingThis option is useful for troubleshooting purposes and displays the temperature readings of themeasurement board, pigtail, battery pack and sampleSample Temperature CalibrationYou will need a sensor simulator for this option. Follow the on-screen instructions to calibrate the sampletemperatureMiscellaneousEnable raw data logger Check the box to enable the capture of raw data which is useful fortroubleshooting purposesActivate service timerCheck the box to activate the service timer option.When activated, the instrument will automatically remind the user when thenext sensor service is due.Enter the Nb of days between services in the box provided. This definesthe due date of the next sensor service.If activated, select the Reset service timer option each time the instrumenthas been serviced. This automatically sets the Last service date parameterto the current date.The total uptime of the instrument is displayed at the bottom of the screen.O2: Calibration ParametersThis option is useful for troubleshooting purposes and will display a number of values associated with themeasurement channelO2: DC Measurement ParametersThis option is useful for troubleshooting purposes and will display the values of the fluorescent andreference LED currentO2: AC Diagnostic ParametersThis option is useful for troubleshooting purposes and will display the values of the fluorescent andreference amplitude and phase, plus the phase shift valueO2: Calibration TimerActivate calibration timerCheck the box to activate the calibration timer option.When activated, the instrument will automatically remind the user when thenext sensor calibration is due.The Last calibration date parameter is shown for information. This isautomatically updated each time a calibration is performed on the sensor.Enter the Nb of days between calibrations in the box provided. Thisdefines the due date of the next sensor calibration.