Operating Procedure; Replacing New Sensor - BGS technic 3401 Instruction Manual

7. OPERATING PROCEDURE

WARNING !
Do not operate this instrument in the presence of gasoline, natural gas, propane, or in other
combustible atmospheres.
NOTE: A sudden whipping of the leak detector probe or "blowing" into the sensor tip will affect the air
flow over the sensor and cause the instrument to alarm.
(1) Power-Up key:
The "ON/OFF" key tums the Hydrogen Leak Detector instrument ON or OFF function.
Press it once to tum on the Hydrogen Leak Detector, the display will illuminate with flash, for 45
seconds to heat up the sensor.
Press and hold this button for 5 second to turn OFF the power.
(2) Auto reset & Reset function key
When the Auto Reset function is turned ON, the meter will monitor background status and fine
tune itself.
When Reset LED light is on, it indicates it is in ON mode.
Press "Reset" button and hold for 2 seconds the Reset light will turn off and Auto Reset function
is in OFF mode.
When the Reset light is off, it indicates the Reset function is in manual mode.
Press the Reset button once to enable manual Reset function.
(3) Enter the measuring mode
• Place the tip of the leak-detector probe as close as possible to the site of the suspected leak. Try
to position the probe within 1/4 inch (6 mm) of the possible leak source.
• Slowly move the probe past each possible leakage point.
• When the instrument detects a leak source, the audible tone will alarm. Additionally, the visual
indicators will light from left to right, Green LED then Orange LED then Red LED (highest
concentration) as increasing of level indicate that the location is close to the source.
• When the Instrument signals a leakage, pull the probe away from the leak for a moment, and
then bring it back to pinpoint the location. If the hydrogen leak is large, setting the sensitivity
switch to LOW will make it easier to find the exact site of the leak.
• Return the sensitivity switch to HIGH before searching for additional leaks.
• When you've finished leak-testing, tum OFF the instrument and store it in a clean place, protect
the leak detector from possible damage.

8. REPLACING NEW SENSOR

The sensor has a limited operative period. Under normal operation, the sensor should work more than
one year. Expose the sensor under high density of coolant (>30000ppm) will shorten its life cycle
rapidly. It is important to ensure that sensor surface is free from water droplets, vapor, oil, grease,
dust and any or all other forms of contaminant. Furthermore,' to ensure good working condition of the
unit, sensors must be replacement periodically when its operative life is over.
WARNING ! When replacing new sensor, the worn-out sensor Play be HOT !
(1) Remove cone cap cover from the tip of
snake tube.
(2) Pull out old sensor and insert the new
sensor into the plug.
(3) Seal the cap cover over the plug.
BGS technic KG
Bandwirkerstr. 3
D-42929 Wermelskirchen
Tel.: 02196 720480
Fax.: 02196 7204820
mail@bgs-technic.de
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