User guide

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