Detecting Leaks; Specifications - RESTEK 22655 Manuel D'utilisation

6.0 Detecting Leaks

Slowly move the probe tip around fittings and other potential leak sources. If the leak detector senses a gas other than air, the LED bar graph
will begin to light, with more lights indicating a more significant leak. On the third red, or second yellow LED, an audible tone will begin to
beep. The more LEDs that illuminate, the faster the beep. When the last red or yellow LED illuminates, the beep becomes a steady tone. The red
LED lights indicate a helium or hydrogen leak. The yellow LED lights indicate a nitrogen, argon, or carbon dioxide leak. Remove the probe
from the vicinity of the leak and allow the unit to return to zero. If a large amount of gas has entered the probe, it may take a few seconds
for the instrument to clear itself. Do not attempt to zero the unit while it is clearing out the gas from the probe. This may cause the unit to
malfunction. Place the probe near the leak again to confirm its location. The reference gas inlet (Figure 1) must not be restricted or the unit
will not operate correctly. Similarly, the exhaust port allows the gas being tested to exit the leak detector and must remain unobstructed. The
exhaust port is located in the probe docking station.
CAUTION: This unit is designed to detect trace amounts of hydrogen arising from a small leak in a nonflammable environment, e.g., laboratory
room air, etc. This unit is rated for use in a nonflammable atmosphere where the sample gas may become sufficiently high in concentration to
become explosive.
NOTE: To disable the audible beep during leak detection, depress and hold the zero set button for 2–3 seconds. After you hear a steady tone
for 1 second, release the button; the beep function is disabled. To turn the beep function on again, depress and hold the zero set button. The
beep function is always enabled at power-up.
NOTE: The leak detector will power down after 6 minutes of operation. This feature prevents excess battery discharge if the unit is accidentally
left on.

7.0 Specifications

Power Rating: 3.7 volts DC, 60 mA (AC adaptor supplied)
Battery Rating: 12 hours normal operation
Operating Temp. Range: 32–120 °F (0–48 °C)
Humidity Range: 0–97%
Warranty: 1-year warranty
Certifications: CE, Ex, and Japan
Compliance: WEEE, RoHS, China RoHS2
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China RoHS Logo 1
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China RoHS Logo 2
Number Font: Impact
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