RHB Series
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NDIR PORTABLE CARBON DIOXIDE GAS DETECTOR Wuhan Cubic Optoelectronics Co.，Ltd Add:Fenghuang No.3 Road, Fenghuang Industrial Park,Eastlake Hi-tech Development Zone Wuhan 430205, China Tel: 86-27-81628831 Fax: 86-27-87405251 www. GasSensor.com.cn

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Introduction This instrument is a perfect integration of world-leading technology (NDIR) and premium components. It can be used in measuring CO2 leakage detection, It provides audible and visual alarms when carbon dioxide gas reaches dangerous levels.

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VvUrtAfX CUIJiC OKTO^kCTKONjCS CO^L.TD. 'Working principle ❖ C02 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, VvUrtAfX CUIJiC OKTO^kCTKONjCS CO^L.TD. 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.

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IwUrtAfX CU4JC Uf-rOfcLfcCTKOPdiCS CO^TP. / Proprietary infrared gas analysis technology, with high accuracy, high resolution, long life and easy maintenance; ■ High and low alarm settings, two levels of audio and light alarms. ■ Automatic zero calibration with air. ■ Diffusion-type sampling methods. ■ Real-time displaying gas concentration with LED. ■ High-capacity rechargeable lithium battery. ■ Dual-range setting with high concentrations of CO2 gas leak detection and alarm function. Small size, simple operation warning light left function right function charge light charge connection

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Specifications Measurement method

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Portable C02 detector is an ideal instrument with alarm function to detect the concentration of C02, such as: ■ Greenhouses ■ Fruit/Vegetable Storage ■ Incubators ■ Mushroom Farms ■ Brewing ■ Ventilation Verification ■ Carbonated Drink Dispensing ■ Indoor air quality ■ Parking areas for safety and leak detection for bulk and high-pressure CO2 systems

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wuha* cutttc o^o*=u&ctkoi*(cs co^m \ How to work? ■ Measurement ■ 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 20m away

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