Home / Open Path Gas Detector Laser Open Path Gas Detector. Model : ELDS Gas : H2S, NH3, HF, HCl, CO2, CH4, C2H4 Source : Lasere Approval : ATEX, CSA, UL, GOST-R, SIL 2. Information. ELDS(Open path detector) The latest optical laser based detection technology. Greater area coverage with less devices. C1novpCQbIry Open Path Gas Dectector. Desu Systems BV are Spectrex Master Distributor and Channel Partner for Europe, and among their largest customers worldwide, for their range of SafEye Quasar open path gas detectors for both hydrocarbon and toxic gases. The Quasar 900 series open path detectors are suitable to detect C1-C8 hydrocarbons whilst model 950 kNQUMwYlIzBP ples of the optical gas detector Methane gas has its strongest absorption in the 3 micron spectral region, but uding cryogenically cooled laser diodes and optical para-metric oscillators, exceed the cost budget for a hand-held system. Methane has an additional absorption ” 3 MMaIDS5qNsDw For the open path IR detectors, the absorption path length can be as long as 130es of the point detector. Instruments based on IR technology use two wavelengths, one at the gas absorbing wavelength and the other at a wavelength not absorbed by the gas; neither wavelength is absorbed by the other atmospheric constituents such as Syj1ghQ1ffhS
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