Inficon D-TEK CO2 Manual De Operación página 5

Headphone sets may be used with the D-TEK CO2. When the headphones are
plugged into the detector, the audio signal will only be heard through the headset.
W A R N I N G
Only use headphone sets supplied by INFICON, part #032-0428.
Serious hearing damage may occur if other headphone sets are
used.
Finding Leaks
1. Press the right hand switch until the HI sensitivity setting is indicated by the
amber LED
2. Place the tip of the leak-detector probe close to the site of the suspected leak.
Try to position the probe within 1/4 inch of the possible leak source.
3. Slowly (approximately 1-2 inches per second) move the probe past each
possible leak point.
NOTE: It is important to move the tip of the probe past the leak to get a
correct reading. The D-TEK CO2 only responds to changes in
concentration of the refrigerant from the leak. Moving the probe
permits the instrument to respond properly to these changes.
4. Watch for the yellow lamps to illuminate, and listen for a tone. When the
instrument detects a leak source, its yellow lamps will illuminate and it will emit
a different audible tone.
5. When the D-TEK CO2 signals a leak, pull the probe away from the leak for a
moment, then bring it back to pinpoint the location.
6. If the concentration of carbon dioxide is high, press the sensitivity switch once
to change the threshold level to the LOW sensitivity setting before repositioning
the probe at the suspected leak source. The LOW sensitivity setting helps find
the exact site when a leak is large.
7. Once you have isolated the leak source, return the sensitivity setting to HIGH
to continue using the D-TEK CO2.
8. When you've finished leak-testing, turn OFF the instrument.
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