INFICON Protec P3000(XL) Helium Leak Detector - Manual (Page 42)

3-8
Operation of the Protec P3000
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If a leak is detected (and accessibility allows so) switch the Protec P3000XL to LOW
FLOW mode (by pressing the right probe button) for easier localization of the leak.
The gas type will now be displayed not-inverted. Now search for the leak again by
bringing the sniffer tip as close as possible to the potentially leaking area. Localize
the leak by moving the sniffer tip back and forth across the suspected area. The leak
will occur where the leak rate signal shows the maximum leak rate.