44
3 Operation
3.3.5
Alarms
Sets the alarm thresholds for the gas types and gases.
Alarm
AL3
cannot be set. It always occurs at the end of the
measuring range.
There is detailed information on alarms in section 7.2.
AL1 alarm
Used to set the pre-alarm.
Applications:
– Plants
– Structure
– Warning %LEL
– Warning ExTox
AL2 alarm
Used to set the main alarm.
Applications:
– Plants
– Structure
– Warning %LEL
– Warning ExTox
AL4 alarm
Used to set the alarm threshold in excess of significant gas con
-
centrations which indicate a gas leak.
Application:
– Inspection above ground
3.3.6
Date/time
Used to set the time, day, month and year. There are two formats
available for the date.
3.3.7
Memory
The Memory menu is used to specify how measurement data
and protocols are handled.
