Products

Online Flammable Gas Analyzer

Model:SFD-Ex-01-Y

Product Features

This analyzer is equipped with original imported infrared, catalytic combustion and electrochemical gas sensors, featuring sensitive response, excellent stability and a service life of more than 3 years. Designed as a flameproof instrument, it supports on-site LCD value display and local audible & visual alarm reminder.

The device supports a wide working voltage range of DC 18V to 30V with a standard operating voltage of DC 24V, maintaining stable operation even with power fluctuation. It delivers strong electromagnetic interference resistance to guarantee precise and reliable signal transmission.

Built-in reverse wiring protection effectively protects the instrument from damage caused by incorrect on-site wiring. Special circuit design provides output signal protection, ensuring the signal current never exceeds 21 mA under any fault status.

Adopting advanced SMT surface mounting technology, the equipment achieves higher integration and overall operational reliability. The outer enclosure is made of 304 stainless steel, offering outstanding corrosion resistance and extended service life.

Internal constant temperature treatment ensures stable working performance in low-temperature winter environments. The built-in intelligent sample gas pretreatment system implements three-stage purification treatment. Impurities and wastewater are discharged automatically without manual intervention, effectively prolonging the service life of internal sensors.

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Technical Parameters

Measured parameter and range: Flammable gas: 0–100%LEL 

Measurement principle: Catalytic combustion / Infrared 

Resolution: 0.1% 

Measurement accuracy: ±3%FS 

Repeatability error: ±2%FS within 7 days 

Optimal sample gas flow: 0.7~1.2 L/min 

Inlet gas pressure: 10 kPa ~ 100 kPa 

Sample gas requirement: Free of dust, water and oil 

Response time (TD+T90): Less than 15 seconds 

Signal output: 4–20 mA analog signal / RS-485 with standard Modbus protocol 

Power supply: AC220V±10%, 50Hz, 1A or DC24V 

Explosion-proof rating: ExdbIICT6Gb, ExtbIIICT85℃Db 

Net weight: 47 kg

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