zetian/laser gas analyser/LGT series/metallurgy/petrochemical/environmental/cement/thermal power
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£ET/AN Process & Environmental Hangzhou Zetian Technology Co.,Ltd.

TDLAS Tunable Diode Laser Absorption Spectroscopy TDLAS Technology 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.At present, the TDLAS technology has developed into a kind of...

LGT Series Laser Gas Analyzer Product Introduction Based on unique tunable diode laser absorption spectrum technology, Hangzhou Zetian Technology Co., Ltd. has designed and developed LGT series laser gas analyzer for industrial online analysis and environmental online monitoring with different types including in-situ probe type, bypass type, multi-channel type, panel mounted type and flameproof type, etc. Laser gas analyzers are used in a wide variety of applications to measure O 2, CO, NH 3, CO 2, CH 4, H 2O, HCl and HF, etc. Measuring concentration ranges from constant to trace. Product...

LGT-100 Laser Gas Analyzer LGT-100 is a flameproof tunable laser gas analyzer for industrial online analysis and environmental on-line monitoring, which can in-situ analyze O 2, CO, NH 3, CO 2, CH 4, H 2O, HCl, HF and other gases in various complex conditions. It consists of transmitter, receiver and connection box. The transmitter drives the tunable diode to emit laser of certain wavelengths, which passes through the environment to be measured, then reaches the receiver. The receiver performs photoelectricity conversion, signal processing and spectrum data analysis to obtain the measuring...

LGT-100 Laser Gas Analyzer Easy Optical Path Adjusting Self Diagnose Function XY direction non-coupling adjusting, easy adjusting Comprehensive self diagnose function, records and saves alarm information, easy to check Adjusting flange Instrument flange Adjusting tool Specification Parameter Technical Indicators Optical Channel Length Linearity Error Span Drift Zero Drift Maintenance Cycle Calibration Cycle Enclosure Rating Interface Signal Analog Output Analog Input 2× 4-20mA input(temp. and press. compensation) Digital Output Relay Output Operating Conditions Power Supply 0.3MPa～0.8MPa...

LGT-106 Laser Gas Analyzer LGT-106 is a flameproof bypass type tunable laser gas analyzer for industrial on-line analysis and environmental on-line monitoring, especially suitable for harsh working conditions such as high temperature, high humidity, high dust, high pressure, and for small pipes where in-situ analyzer is not applicable. The transmitter and receiver are installed on a back board. The analyzer contains auto purge function which greatly reduces maintenance cost. System Composition LGT-106 laser gas analyzer consists of transmitter, receiver and gas cell. The transmitter drives...

• Suitable for harsh working conditions such as high temperature, high humidity, high dust, high pressure, and for small pipes where are not suitable for in situ measurement occasions. • Integrated structure design, high reliability and stability. • "Single line spectrum" technology, free from interference of background gas. • Innovative Hall button design, high sensitivity, easy operation. • Automatic calibration, automatic backblow. • Adopts imported TO encapsulate semiconductor lasers, optical noises are restrained with antireflective coating end cap. Technical Indicators Linearity Error...

LGT-150 Laser Gas Analyzer LGT-150 is a multi-channel type tunable laser gas analyzer based on TDLAS technology. It consists of central control unit and measuring probe. Supporting up to 8 measuring probe, a central control unit controls each measuring probe, processes data received and communicates through network. It supports 19" panel mounted and wall mounted installation. System Composition F i g u r e b e l o w s h o w s L G T- 1 5 0 m u l t i - c h a n n e l distributed measurement. The central control unit realizes human-machine interaction and loading and setting of the parameter in...

H Intuitive Real-time concentration profile available, good intuition Specification Parameter LGT-150 Laser Gas Analyzer | Strong Anti-Interference Capability Adopting wavelength-modulation-spectroscopy allows better anti-interference capability of background gas and higher reliability. Technical Indicators Linearity Error =S± 1%F.S. Repeatability s£l% Span Drift =S± 1%F.S./half year Zero Drift sS± 1%F.S./half year Maintenance Cycle 2times/year,clean optical window Probe Type of Protection ExdIICT6 Gb Probe Enclosure Rating IP66 Central Unit Enclosure Rating IP54...

LGT-180 Laser Gas Analyzer LGT-180 is a 19" panel mounted type tunable laser gas analyzer for industrial online analysis and environmental on-line monitoring. The analyzers combine TDLAS technology and multiple reflection long optical path technology that can analysis a variety of gas including O 2, CO, NH 3, H 2S, CO 2, CH 4, H 2O. Reflected light can be customized according to the working condition demand, the measured gas concentration ranges from constants to the trace. System Composition Transmitter, receiver and gas cell are integrated into a 19" 3U chassis. Analyzer can be panel...

H Low Detection Limit Modular design, easy installation and maintenance Multi-reflection gas cell greatly improves detection limit Specification ParameterTechnical Indicators Linearity Error ^ ± 1%F.S. Span Drift ^ ± 1%F.S./half year Zero Drift ^ ± 1%F.S./half year Maintenance Cycle ^ 2times/year(related to the working condition) Calibration Cycle ^ 2times/year(or automatic calibration) Response Time(T90) ^ 30s(related to the working condition) 100VAC~240VAC 0.3MPa- 0.8MPa industrial nitrogen, purification instrument air, etc. -20^ - +60^ Interface Signal Analog...