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7 Appendix
7.2
Alarms
Note:
Alarms are only emitted in the
Inspection above ground
and
House
applications.
There are no alarms in the
Measuring in bar holes
and
Gas
measuring
applications.
7.2.1
Features
ALEOS
Type:
End of measuring range
Adjustable:
No
Latching:
No
Trigger:
ALEOS alarm threshold exceeded
Indicator:
– Audible signal
– Visual signal
–
ALEOS
notification on display
–
Reading flashes
Acknowledge-
ment:
– Not possible
Reset:
– Automatic when level falls below ALEOS alarm
threshold
– By switching device off
ALPPM
Type:
Warning of gas concentration in ppm range
Adjustable:
Yes
Latching:
No
Trigger:
ALPPM alarm threshold exceeded
Indicator:
– Audible signal
– Visual signal
–
ALPPM
notification on display
Acknowledge-
ment:
– Possible for audible signal when ALPPM alarm
threshold is exceeded
Reset:
– Automatic when level falls below ALPPM alarm
threshold
