User guide

4.8 ALARM MUTE (for PERC only)

Note: With “Alarm Mute ON” (enabled) the alarm condition will be

muted only until the gas concentration drops below the alarm

level – remember this is a temporary mute function.

To enter the “ALARM MUTE” menu press and the following

screen will appear: -

Press to toggle between “ALARM MUTE OFF” and

“ALARM MUTE ON”. Press to confirm your choice and

you will return to the main menu. If you select “Alarm Mute On”

and exit the menu, the symbol will be displayed on the gas

concentration screen.

Press to scroll down to the next menu choice.

4.9 ALARM (for PERC only)

To enter the “ALARM” menu press and the following

screen will appear: -

Press to toggle between “ALARM PERMANENT ON” and

“ALARM PERMANENT OFF”. Press to confirm your

choice and you will return to the main menu.

ALARM MUTE

OFF

ALARM

PERMANENT