LGS pump suction infrared gas detector

LGS is an active sampling gas detector designed based on the principle of NDIR. It uses gas to measure the concentration of the absorption characteristics of a specific infrared spectrum. There is no oxygen dependence and no poisoning of the catalytic sensor. It has a long life, high accuracy and stable performance.

Shell material: Cast aluminum alloy or 316 stainless steel
size: 380mm*116mm*103mm (length, width and height)
Sensor type: Non-dispersive infrared
Detection method: Pump suction type
Supply voltage: 24VDC (18 to 28VDC)
Signal output: Three-wire system 4-20mA linear output, RS485 output (Modbus-3RTU protocol) supports HRAT protocol, 3 relay outputs
Measurement accuracy: ±2% LEL to±4%LEL (depending on the gas type)
Repeatability: ≤2%
Response time: T90≤60S
Humidity range: ≤95%RH (non-condensing)
Temperature range: -40°C to 70°C
Environmental pressure: 85 to 115kPa
Protection level: IP66
Explosion-proof sign: ExdIICT6Gb

Part number Gas type Measuring range Resolution
LGS-8280 methane 0-100%VOL 0.1%VOL
LGS-8281 methane 0-5%VOL 0.01%VOL
LGS-8282 Ethane 0-100%LEL 1%LEL
LGS-8283 Acetylene 0-100%LEL 1%LEL
LGS-8284 Carbon dioxide 0-5000ppm 1ppm
LGS-8285 Carbon dioxide 0-5%VOL 0.01%VOL
LGS-8286 Carbon dioxide 0-10%VOL 0.01%VOL
LGS-8287 Carbon dioxide 0-100%VOL 0.1%VOL
LGS-8288 Bromomethane 0-100%LEL 1%LEL
LGS-8289 propane 0-100%LEL 1%LEL
LGS-8290 Dibromomethane 0-100%LEL 1%LEL
LGS-8291 Ethylene oxide 0-100%LEL 1%LEL
LGS-8292 Butane 0-100%LEL 1%LEL
LGS-8293 Pentane 0-100%LEL 1%LEL
LGS-8294 ethylene 0-100%LEL 1%LEL
LGS-8295 methanol 0-100%LEL 1%LEL
LGS-8296 Acetone 0-100%LEL 1%LEL
LGS-8297 benzene 0-100%LEL 1%LEL
LGS-8298 Ethyl acetate 0-100%LEL 1%LEL
LGS-8299 Tetrahydrofuran 0-100%LEL 1%LEL

Gas, petrochemical, oilfield drilling, coal-to-gas, etc.

Pre-sales Service:

0755-26897077

  • Consultation：qiye@langgerry.com
  • No. 137, Comprehensive Building, Xihuan Road, Dexing Community, Buji Street, Longgang District, Shenzhen

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