gas analyzer / chlorine / exhaust gas / ammonia
LGT-200 Hangzhou Zetian Technology CO., Ltd



  • Measured entity:

    gas, chlorine, exhaust gas, ammonia, metal, coal, cement, copper, rubber, flue gas

  • Measured value:


  • Configuration:

    for integration

  • Other characteristics:

    monitoring, continuous, cost-effective, flameproof, compact, online, real-time, with CO2/O2 sensor, tunable diode laser technology, IP65, laser diode, laser, sampling, explosion-proof, high-performance, extractive, for harsh environments, TDL


Product Description
LGT-200 laser gas analyzer uses TDLAS technology and long-path reflection technology, which greatly improves the detection limit. It can analyze O2 , CO2, NH3 , CO , CH4 , H2O, HCl, HF, etc, providing a new solution of online measurement of trace gases for natural gas, petrochemicals, environmental protection and steel and other industries.

1. Combine TDLAS and long-path technology to improve the detection limit
2. Integration proof method, applicable to explosive situations
3. Backplane is separated from flameproof enclosure,easy to maintain
4. OLED screen featuring light weight, wide viewing angle, fast response adapt to industrial environments

1. Measurable components: O2 , CO2, NH3 , CO , CH4 , H2O, HCl, HF, etc
2. Response Time ≤1s (T90)
3. Linear Error ≤ ±1%F.S.
4. Calibration Cycle ≤2 times/ year
5. I/O mode: 2×4-20mA, RS485/RS232/GPRS
6. Purge gas: 0.3MPa ~ 0.8MPa N2, clean air

1. Metallurgy: blast furnace ironmaking, converter steelmaking, coking production
2. Petrochemical chemical: oil refining, ethylene cracking, EO/EG, PE/PP, ethyl benzene/styrene monomer/PS, PTA, sulphuric acid, TDI, etc.
3. Environmental protection: flue gas emissions Hcl, HF, CO, CO2, O2, NH3, NO ,NO2
4. Thermal power: O2, CO
5. Cement production: O2, CO, CO2