I
1 General ..................................................................................... 1
1.1 Warranty .................................................................................... 1
1.2 Purpose ..................................................................................... 2
1.3 Intended use .............................................................................2
1.4 General safety information ........................................................3
2 Features ...................................................................................5
2.1 Visual signals and audible signals ............................................5
2.2 Measurement principles ............................................................6
2.3 Explosion protection .................................................................. 7
3 Operation .................................................................................9
3.1 General information on operation ..............................................9
3.1.1 Operator guidance .................................................................9
3.1.2 Operating modes ..................................................................10
3.2 Measuring mode ..................................................................... 11
3.2.1 User menu ............................................................................14
3.2.2 Setting the zero point ...........................................................15
3.2.3 House application .................................................................16
3.2.4 Enclosed spaces application ................................................ 18
3.2.5 Warning %LEL application ...................................................20
3.2.6 Measuring VOL% application ............................................... 23
3.2.7 Function control ....................................................................25
3.2.8 Changing gas types .............................................................26
3.3 Advanced settings ................................................................... 27
3.3.1 Access ..................................................................................27
3.3.2 Menu structure .....................................................................29
3.3.3 Procedure .............................................................................30
3.3.4 Info menu .............................................................................32
3.3.4.1 Adjustment menu ..............................................................32
3.3.4.2 System menu ....................................................................33
3.3.4.3 Hardware menu.................................................................38
3.3.4.4 Memory menu ...................................................................41
3.4 Connecting accessory devices ................................................42