JHB-100 infrared methane alarm detector is in compliance with mining products certification, it is mainly applied in coal mine, natural gas, CBM (Coal bed methane), rubbish filling, sewage treatment, anaerobic fermentation and other fields for CH₄ gas leakage detection. Infrared gas filter technique, CH₄ measurement can not be interfered by other gas compositions

Measurement method: NDIR

Range: CH_4:0~5% up to 0~100%vol

Resolution: Measurement range: 0~5%vol, resolution is 0.01%

          Measurement range: 0~100%vol,

for 0~10% resolution is 0.01%; above 10% resolution is 0.1%

Max Error: For range 0~1%, ≤+ 0.1%

          For range 1~100%, ≤+ 10% of readings

Response time T₉₀ :< 25s at 20⁰C

Working temperature:–20⁰C~55⁰C

Storage temperature: –40⁰C~85⁰C

Humidity: ≤95%RH

Warm-up: 30s

Stand-by time: ≥10 hours

Sampling method: Diffusion sampling

Power supply: DC3.7V 1300mAh lithium battery

              220V to 5V power adapter