CO2 Monitor 2800Instruction 19-92203.5 Fault Condition WarningThe unit can warn the user of an internal fault, i.e. a source failure orblockage in the Infrared path. When a fault occurs, both LEDs will illu-minate and the alarm will sound continuously. The following screen willdisplay until the unit is switched off.FAULTIf the fault condition warning is activated at any time, then the unitmust be returned to Bacharach for service.3.6 Data LoggingWhen the CO2 Monitor is switched on, it will automatically begin storingtime, date and CO 2 levels at 30 second intervals. Optional BACH-COMSoftware allows this interval to be changed (Section 4.1).Readings are stored with their real time to the nearest second. There isstorage capacity for more than 1,500 sets of readings. Once the storagecapacity has been exceeded, the latest readings will overwrite the oldeststored data - i.e. first i, first out.NOTE: Optional BACH-COM Software is available to pro-duce tables and plots of real time CO2 exposure (See Section4.1 for part numbers).3.7 Software Version/Serial NumberWhile holding the f1 button down, turn the unit ‘on’ in order to retrievethe instrument software version and issue date. Releasing the f 1 buttonwill dislay the istrumet serial umber for five secods.3.8 Factory Authorized Reset ModeThis function should only be activated when advised by a Bacha-rach service representative as it may alter calibration.While holding down f2 butto, tur uit “o”. The dislay will show...FACTORYSETTINGSKeep f 2 button depressed for 5 more seconds until the display shows...FACTORYRESET OK6