Idiomas disponibles
Idiomas disponibles
en
Operation
6.6.1
Concentration pre-alarm A1
Intermittent alarm:
Alternating display of » A1 « and measured value.
Not for O
!
2
The pre-alarm A1 is not latching and stops when the concentration has
dropped below the alarm threshold A1.
In case of A1, a single tone is audible and the alarm LED flashes.
In case of A2, a double tone is audible and the alarm LED flashes twice.
Acknowledge pre-alarm:
Press the [OK] key, only the audible alarm and the vibration alarm are
switched off.
6.6.2
Concentration main alarm A2
Intermittent alarm:
Alternating display of A2 and measured value.
For O
:
2
!
WARNING
Leave the area immediately. Danger to life! A main alarm is self-retaining and
cannot be acknowledged or cancelled.
After leaving the area, when the concentration has dropped below the alarm
threshold:
Press the [OK] key; the alarm messages are switched off. If the measuring
range is exceeded significantly at the CatEx channel (very high
concentration of flammable materials), a blocking alarm is triggered. This
CatEx blocking alarm can be manually acknowledged by switching the
instrument off and on in fresh air.
In configuration setting CH
alarm is triggered as the heat conductance measuring principle is used for
this purpose.
WARNING
!
The measuring range 0 to 100 vol.% CH
explosive mixtures in the measuring range of 0 to 100 %LEL.
38
A1 = lack of oxygen
A2 = excess oxygen
with measuring range 100 vol.%, no blocking
4
is not suitable for monitoring
4
