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Frequently Asked Questions

Gas Chromatography Accessories
What gases will my Restek Electronic Leak Detector detect?
The Restek Electronic Leak Detector will detect minute leaks of any commonly used carrier, fuel, or make-up gas with a thermal conductivity different from air. The reference gas inlet draws in ambient air for comparison to air drawn into the sample probe. A thermal conductivity difference between the two indicates a leak, and the leak is revealed by both an LED display and an audible tone.

Gas
Min. Detectable
Leak Rate (atmcc/sec.)
Indicating LED
Light Color
Helium
1.0 x 10-5
Red
Nitrogen
1.4 x 10-3
Yellow
Argon
2.2 x 10-3
Yellow
Carbon dioxide
1.1 x 10-3
Yellow

CAUTION: The Restek Electronic Leak Detector may be used for determining trace amounts of hydrogenin a GC environment only. It is NOT designed for determining leaks of combustible gases. A combustiblegas detector should be used for determining combustible gas leaks under any condition.