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- Zetian - Model LGT-680 - Panel-mounted ...
Zetian - Model LGT-680 -Panel-mounted Laser Gas Analyzer
The LGT-680 is a 19-inch panel-mounted tunable laser gas analyzer developed for industrial online analysis and environmental online monitoring. The analyzer utilizes TDLAS technology, which allows scanning for specific absorption peaks of the measured gas (no background gas absorption), and the gas concentration can be calculated according to the second harmonic and the spreading information of the gas. With lower detection limit, it can measure concentrations of 1~5 different gases at the same time, and the gas components can be customized to analyze a wide range of gases, including O2, CO, NH3, H2S, HCl, HF, HCN, CO2, CH4, and H2O.19-inch 4U panel mounted chassis, modular design for internal key components, convenient for multiple instruments to be combined and integrated;
High-stability, low-noise semiconductor laser as the light source, single line spectral technology and laser wavelength scanning technology;
Strong anti-interference ability, high measurement accuracy, small measurement drift, good stability and other unique advantages;
1~4 laser emission modules with high integration and small volume; 1~5 parameters measurement of customizable components;
Strong system environmental adaptability for gas detection applications in corrosive environments.
Analysis of coal gas and metallurgical furnace gas; petrochemical and chemical refining; gas analysis in urea chlor-alkali manufacturing process; industrial flue gas denitrification; waste incineration flue gas analysis; cement production combustion process control; combustion process control of thermal power generation, etc
Linearity error: ≤±1%F.S.
Zero drift: ≤±1%F.S./half a year
Span drift: ≤±1%F.S./half a year
Maintenance period: ≤2n/year (related to working condition)
Calibration period: ≤2n/year (online calibration)
Response time (T90): ≤30s (related to working condition)
Power supply: 100VAC~240VAC
Analog input: 4×4-20mA output (isolation, max load of 750Ω)
Analog output: 2×4-20mA input (temperature, pressure compensa
tion)
Switch output: 4 outputs
Switch input: 2 inputs
Communication interface: RS485/RS232
Working temperature: -20℃~+60℃