75
7 Appendix
Pressure at gas input: 100 mbar, maximum
Operation: – ON/OFF key
– Jog dial
– 3 function keys
7.2 Alarms
A
WARNING! Danger of death due to hazardous gas
concentrations
The alarms AL1, AL2 and AL3 always indicate danger.
Alarm AL4 indicates the possibility of danger.
● Take all necessary measures for your own safety and
the safety of others immediately.
The type of action depends on the situation. In the event of a
pre-alarm, it may be sucient to ventilate thoroughly. In the event
of a main alarm, it may be necessary to leave the danger zone
immediately.
7.2.1 Features
AL1
Type: Pre-alarm
Adjustable: Ye s
Latching: No
Trigger: Alarm threshold AL1 exceeded
Indicator: – Audible signal
– Visual signal
– AL1 message on display
Acknowledge-
ment:
– Possible for audible signal when alarm threshold
AL1 is exceeded
Reset: – Automatic when level falls below alarm threshold
AL1
Exception for oxygen: alarm AL1 is triggered when the level falls
below alarm threshold AL1.
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