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> Gow-mac 21-250 gas leak detector
Gow-mac 21-250 gas leak detector
Gow-Mac 21-250 Gas Leak Detector
The GOW-MAC gas leak detector operates on the same principle
as a thermal conductivity detector. The instrument responds to
any gas mixture that has a thermal conductivity value different
from that of air. With an intrinsically high signal-to-noise ratio,
amplification provides maximum usable sensitivity helium
leaks of 1 x 10-5 cc/sec and refrigerant leaks of 11 x 10-4 cc/sec are
That being said, these units are NOT designed to be used to determine leaks of
combustible gases. Gas leak detector pinpoints gas leaks emitting from
pressurized systems, utilizing a thermal conductivity detector with signal
amplification. The instrument is zeroed in ambient air and responds to any
gas mixture with a thermal conductivity different from that of air
* Detector: thermal conductivity cell with thermistors
* Visual Readout: Center zero meter. Graduated -50 to 0 to +50
* Battery: Rechargeable pack, 4 x 2 V.
* Battery Life: 4 hours; may be recharged to 75% of capacity in 2 hours
* Audio signal: Frequency changes with concentration with adjustable threshold and adjustable speaker volume.
* Helium 1.0 x 10 -2 cc/sec .012ft/yr
* Argon 1.0 x 10 -2 cc/sec .110ft/yr
* CO2 1.1 x 10 -2 cc/sec .123ft/yr
* Refrigerant 1.1 x 10-2cc/sec .0123ft/yr
