Shenzhen Safeeling Science & Technology Co., Ltd
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Place of Origin: | Guangdong, China (Mainland) |
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1-, Very sensitive especially in low and middle concentration of flammable gases.
2-, Very short respond time and recovery time.
3-, Long life, high stability.
4-, Simple application circuit, low cost.
5-, Widely used in domestic gas leakage alarm, industrial flammable gas alarm and portable gas detector alarm.
Model | 5A-MQ5 | ||
Sensor Type | Semiconductor gas sensor | ||
Standard Encapsulation | Bakelite, Metal Cap | ||
Target Gas | CH4, LPG and flammable gases. | ||
Temperature range | Usage:﹣10℃~﹢55℃ | ||
Storage:﹣20℃~﹢60℃ | |||
Humidity range | ≦ 95﹪RH | ||
Detection range | 500~10000ppm | ||
Standard Circuit Conditions | Loop Voltage | Vc | 5V~24VDC |
Heater Voltage | VH | 5V±0.2VDC/AC | |
Load Resistance | RL | Adjustable (1K-30K) | |
Heater consumption | PH | ≦900Mw,(VH=5V) | |
Sensitivity | LS(Rs) | α≤0.6 ,RS(3000ppm)/RS(air) | |
Sensitive resistance | RS | RS=(VC/VRL-1)*RL | |
Respond time Tx | ≤30S | ||
Revovery time Th | ≤60S | ||
Standard test conditions | Temp. Humidity | 20±2℃,65±5%RH | |
Standard test circuit | VH= VC=5V±0.05VDC; RL=4.7K±1% | ||
Preheat time | ≧ 24 hours |
Calculation method of the sensor power:Ps= VC* VC* RS/(RS+ RL)* (RS+ RL)