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If you select “Alarm Permanent OFF” and exit the menu, the
symbol
P
will be displayed on the gas concentration
screen to indicate that the alarm has been permanently muted.
Press
to scroll down to the next menu choice.
4.10 ALARM LEVEL
(for PERC only)
To enter the “ALARM LEVEL” menu press
and the follow-
ing screen will appear: -
Press to toggle between 50PPM, 100PPM, 150PPM and
35PPM.
Press
to confirm your choice and you will return to the
main menu.
Whatever alarm level you have chosen will be displayed on the
bottom left of the main display screen.
NOTE: The altered alarm level will remain active until the Moni-
tor is switched off after which it will revert to the 50PPM default
level.
Press to scroll up to the “EXIT” menu choice and press
to exit to the main screen.
ALARM LEVEL
50PPM