Automatic Circuit/Reset Feature - Center 383 Instruction Manual

6-2 Automatic Ambient Reset Feature
This combustible leak detector features an Automatic
Ambient Reset function that sets the unit to ignore
ambient concentrations of combustible.
 Automatic Ambient Setup - Upon initial power on,
the unit automatically sets itself to ignore the level
of combustible present at the tip. Only a level, or
concentration, greater than this will cause an alarm.
CAUTION!
Be aware that this feature will cause the unit to
ignore any combustible present at turn 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
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 present (fresh air) causes any
level above zero to be detected.
COMBUSTIBLE GAS DETECTOR
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