Tracer TP-9361 PRO-Chek CO2 AM08043 - Manual (Page 5)

Finding Leaks
1. Press the right hand switch until the HIGH 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 [25 to 5 mm] 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 PRO-Chek 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 PRO-Chek 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 fi nd 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 PRO-Chek CO2.
8. When you’ve fi nished leak-testing, turn OFF the instrument.
Recharging the Power Stick
A fully charged power stick should provide power for greater than 6½
hours of continuous operation. To recharge the power stick, use one of the
instrument’s power cords.
NOTE: The PRO-Chek CO2 does not need to be fully charged to operate.
Additionally, the power stick does not need to be fully discharged before
recharging.
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