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Function switch
„OFF“
Charge battery
? Insert instrument
in charging station
Chap. 3.1
Battery exchange
? Unlatch battery
?
Pull down battery
?
Insert new battery
Chap. 3.2
Filter replacement
? Turn filter cap and
pull it out
? Insert new filter
cap, press down
and turn
Chap. 4.5
Sensor replacement
? Remove filter cap
? Sensor entnehmen
? Insert new sensor
? Insert filter cap
Automatic
Selftest
Chap. 3.1.1
Automatic
Zero adjustment
Chap. 4.1
Service mode
? Calibration
? Alarm level
adjustment
? Bridge voltage
Chap. 4
Chap. 3.3.1
Operating mode
? Display shows
concentration in
% LEL
? Alarm if
concentration
exceeds preset
alarm threshold
? Reset first alarms
with reset button
Chap. 3.3
Chap. 4.6
Compur Ex plus
Flowchart
Subject to technical modifications !
Function switch
„TEST“
Function switch
„ON“