INFRARED (NDIR) PORTABLE METHANE (CH4) GAS DETECTOR Wuhan Cubic Optoelectronics Co. ， Ltd ADD ： Fenghuang No.3 Road, Fenghuang Industrial Park,Eastlake Hi-tech Development Zone, Wuhan, 430205, China TEL ： +86-27-87405251 FAX ： +86-27-87401159 [email protected]

Working principle  CH4 gas is composed of different types of atoms have absorption spectrum in infrared range. Absorption intensity abides by Lamber-Beer’s Law. Basic working principle of NDIR sensor is as below, Inlet detector Light spectral filter  Basic mathematical model ： A majority of both organic and inorganic polyatomic gas have specific absorptive wavelength in infrared region. It observes Lambert-Beer Law formula I ＝ I0e-kpl when infrared light is coming through. Light absorption intensity “i” can be described as i=I0-I= I0 (1- e- kpl). I0: intensity of incoming ray. I: transmitting...

■ This instrument is a perfect integration of worldleading technology (NDIR) and premium components. It can be used in measuring CH4 leakage detection. ■ It can be used in measuring CH4 concentration in the process of biogas generation. Meanwhile, it's able to detect biogas leakage.

Feature ﹒Independent intellectual property rights of infrared gas analysis technology ﹒Dual-range setting with high concentrations of methane gas leak detection and alarm function ﹒ High and low alarm points can be customized settings ﹒Air auto-zero calibration feature ﹒ Proliferation Sampling ﹒Fast response ﹒LED digital tube display real-time gas concentrations ﹒Rechargeable lithium battery Small size, sim

Application Portable CH4 detector is an ideal instrument with alarm function to detect the concentration of CH4, such as chemical industry, oil & gas storage, mine, metallurgy, liquefied gas station, spray paint, petroleum, fuel gas transport, as well as the leakage of nature gas. | | |

 Alarming functions Alarm is able to set the alarm at any point, alarm value and set value displays the difference should not exceed ± 0.05% (the full range 0-10%) Alarm sound level intensity at a distance of not less than 75dB (A) in the distance of 1m. Optical signal visibility in the dark should not be less than

Instrument Configurations Remote controller