Hydrogen (H
2
) Gas Leak Detector
11
6-3 Feature Sensitivity Adjustment
The Instrument provides three levels of sensitivity.
When the unit is switched on, it is set to the medium
sensitivity level.
To change the sensitivity, press the key.
When the key is pressed, the visual display will
momentarily show the two left LED's (green)
indicating Low Sensitivity level is selected.
To switch back to High Sensitivity, press the
key. The two right LED's (red) will light momentarily
indicating high Sensitivity level is selected.
Low Sensitivity level
(Green LED)
Medium Sensitivity level
(Orange LED)
High Sensitivity level
(Red LED)