Hydrogen (H
2
) Gas Leak Detector
9
6-2 Automatic Ambient Reset Feature
This Hydrogen leak detector features an Automatic
Ambient Reset function that sets the unit to ignore
ambient concentrations of hydrogen.
Automatic Ambient Setup
- Upon initial power on,
the unit automatically sets itself to ignore the level
of Hydrogen 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 hydrogen 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 hydrogen
concentration 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 Hydrogen present (fresh
air) causes any level above zero to be detected.
After the unit is warmed up, the default sensitivity
level is set at “Medium” and Auto Reset function is
“ON”
Auto Reset function is best used initially when user
