Owner manual

COMBUSTIBLE GAS DETECTOR

6-2 Automatic Ambient Reset Feature

This combustible gas detector features an Automatic

Ambient Reset function that sets the unit to ignore

ambient concentrations of combustible gas.

 Automatic Ambient Setup - Upon initial power on,

the unit automatically sets itself (approx. 1.5 minutes)

to ignore the level of combustible gases present at

the tip. Only a level, or concentration, greater than

this will cause an alarm.

CAUTION!

This feature will cause the unit to ignore any

combustible gases present at power on. In other

words, with the unit OFF if you place the tip up to a

known leak and switch the unit on, NO leak will be

indicated!

 Ambient Reset Feature - Resetting the unit during

operation performs a similar function; it programs the

circuit to ignore the level of combustible gases

present at the tip. This allows the user to 'home-in' on

the source of the leak (higher concentration). Similarly,

the unit can be moved to fresh air and reset for

maximum sensitivity. Resetting the unit with no

combustible gas present (fresh air) causes any level

above zero to be detected.