Operation40Operating Instructions Radiation sensors R3XXService register 8Display S8Minimum value 0Maximum value 65535Increment 1Default value 0Meaning ReserveService register 9Display S9Minimum value 0Maximum value 65535Increment 1Default value 0Meaning ChecksumError messagesIf any errors have occurred, they will be displayed once you have left the lastservice register (S9). Pressing the mode button takes you back to thebeginning of the menu (S0). If a checksum error has occurred, you canmake any necessary corrections in the service registers.If an error is reported, you can only quit the sensor configuration by notpressing any button for around 20 seconds or by switching off the unit.The following messages may be output:Incorrect checksum Check the settings in the service registers andchange them as appropriate.EEPROM access incorrect Please contact your service centre.ERR CHK1ERR CHK2