HANGZHOU ZETIAN TECHNOLOGY CO., LTD.
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Gas Analyzers

Gas Analyzers

EM-5 flue gas analyzer is a self-developed gas analysis product for domestic and overseas environmental and industrial online monitoring. The analyzer is based on DOAS and chemometric algorithms PLS), being able to measure SO2, NO, NO2, O2, NH3, CO, CO2, Cl2, O3, H2S, HCl, CH2I, etc.. With high accuracy and reliability, low operating costs, fast response time, wide measurement range and application fields, it has achieved even surpassed similar products home and abroad.

Ultraviolet light is sent by the light source through the optical window into gas chamber; absorbed by the sample gas through the gas chamber. The light carrying sample absorption information gathers through lens coupled into fiber and then transmits through the optical fiber into spectrometer. After light splitting and photo-voltaic, conversion, absorption spectrum is obtained and analyzed to calculate the concentration of the related components in gas.
TDLAS(Tunable Diode Laser Absorption Spectroscopy)mainly uses the character that tunable laser's narrow band and wavelength change with the current. So by precisely modulating the current of tunable laser, it can scan a certain absorption peak of detected gas (no absorption of background gas). And after obtaining the second harmonics absorbed by detected gas, it finally works out the concentration of detected gas by using this second harmonics and line-width. 

By using a tunable semiconductor laser, LGT series laser gas analyzer scans the specific absorption lines of the measured gas(no background gas) to get the second harmonic of the gas. Through processing and analyzing the second harmonic and the broadening information of the gas, the concentration of the gas is obtained.

LGT-100 is a flameproof in-situ tunable laser gas analyzer for industrial online analysis and environmental on-line monitoring, which can online analyze O2, CO, NH3, CO2, CH4, H2O, HCl, HF and other gases in various complex conditions (NOTE: A single analyzer can only analyze 1~2 components). Measuring concentration range from major to trace.

GCOM-3000 is a VOCs monitoring product which use international mainstream chromatographic methods. It can monitor Organic pollutant gases such as methane, the total hydrocarbon, non methane total hydrocarbon, low-carbon aldehyde ketone, benzene series(benzene, toluene, xylene, ethyl benzene, isopropyl benzene) and part of halogenated hydrocarbons by using FID detector and high performance chromatographic separation column. The pneumatic heating box is designed inside the analyzer which can solve the problem of the measured results is low under the certain high temperature conditions.

GCOM-3200 volatile organic compounds online analyzer (gas chromatograph) adopts specialized chromatographic column combination, gas path purging technology and flame ionization detector (FID) technology to realize simultaneous determination of non-methane hydrocarbon and benzene series, which is applied in working condition of high temperature, high humidity and high dust. The data can be uploaded to the corresponding monitoring platform as required.
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