17
5
Operations and Functions
5-1. Gas alarm activation
An alarm is triggered when the concentration
of the detected gas reaches or exceeds the
alarm setpoint value <Self-latching
operations>.
<Alarm activation>
Alarm type
LCD
Operation
First alarm
Setting: 19.5%
Buzzer: Slow
intensity
change
Lamp/Vibration:
Slow and
intermittent
Display:
Concentration
display
blinking
Displays
WARN
Second alarm
Setting: 23.5%
Buzzer: Fast
intensity
change
Lamp/Vibration:
Fast and
intermittent
Display:
Concentration
display
blinking
Displays
ALRM
Over alarm
Setting: 40.0%
Buzzer: Fast
intensity
change
Lamp/Vibration:
Fast and
intermittent
Display:
Concentration
display
blinking
Displays
OVER
