Feature Sensitivity Adjustment - BGS technic 3401 Instruction Manual

6-2 Automatic Ambient Reset Feature
This Forming Gas 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 tum 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 "High" and Auto Reset function is "ON".
• Auto Reset function is best used initially when user is moving around trying to identify leakage
source. Once the leak source is determined, cancel the Auto Detect function to proceed with
leakage measurement
• Auto Reset function should be turned OFF when use in fixed position leakage detection.

6-3 Feature Sensitivity Adjustment

The Instrument provides three levels of sensitivity.
When the unit is switched on, it is set to the high sensitivity level.
• To change the sensitivity, press the "Sensitivity LO" 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 "Sensitivity HI" key. The two right LED's (red) will
light momentarily indicating high Sensitivity level is selected.
BGS technic KG
Bandwirkerstr. 3
D-42929 Wermelskirchen
Low Sensitivity level (Green LED)
Medium Sensitivity level (Orange LED)
High Sensitivity level (Red LED)
Tel.: 02196 720480
Fax.: 02196 7204820
mail@bgs-technic.de
www.bgstechnic.com
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