INFICON D-TEK CO2 Refrigerant Leak Detector - Manual (Page 4)

4
Using Your INFICON D-TEK CO2
WARNING WARNING WARNING
DO NOT OPERATE THIS INSTRUMENT IN THE PRESENCE OF
GASOLINE, NATURAL GAS, PROPANE, OR IN OTHER
COMBUSTIVE ATMOSPHERES.
Using the D-TEK CO2 is simple. Press the power switch once to turn the detector
ON. The green ON indicator lamp will illuminate, and the yellow indicator lamps
will illuminate from left to right in a running fashion while the infrared cell warms up
(approximately 60 seconds). When the detector is warmed up and ready for use,
the yellow lamps stop illuminating and you will hear an audible beeping.
The D-TEK CO2 is highly selective for CO
2
(carbon dioxide). The atmosphere has
a natural background concentration of carbon dioxide of approximately 0.035%.
To prevent false alarms, it may be necessary to take steps to limit changes in this
background concentration from sources such as vehicle exhaust or your own
breath.
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.
WARNING WARNING WARNING
ONLY USE HEADPHONE SETS SUPPLIED BY INFICON, PART
#032-0404. 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.