5A-MP4
1-, Low consumption, heating current within 80mA.
2-, small size, high sensitivity especial for CH4.
3-, Long life, high stability.
4-, Simple application circuit.
5-, Widely used in house gas alarm, car gas alarm, common portable gas alarm, flammable heating water gas alarm, burning equipment gas alarm, and so on.
| Model | 5A-MP4 | ||
| Sensor Type | Semiconductor gas sensor | ||
| Standard Encapsulation | Metal cap | ||
| Target Gas | CH4, Nature gas, Butane | ||
| Temperature range | Usage:﹣10℃～﹢55℃ | ||
| Storage:﹣20℃～﹢75℃ | |||
| Humidity range | ≦ 95﹪RH | ||
| Detection range | 300~10000ppm | ||
| Standard Circuit Conditions | Loop Voltage | Vc | 5V~24VDC |
| Heater Voltage | VH | 5V±0.1VDC/AC | |
| Load Resistance | RL | Adjustable (1K-20K) | |
| Sensor character under standard test conditions | Heater Resistance | RH | 85Ω±15Ω (room tem.) |
| Heater consumption | PH | ≦400mW,(VH=5V,IH 80mA) | |
| Sensitivity | LS(Rs) | α≤0.6 ,RS(3000ppm)/RS(air) | |
| Sensitive resistance | RS | RS=(VC／VRL－1)*RL | |
| Concentration Slope | α | ≤0.6(R5000ppm/R1000ppm CH4) | |
| Respond time TX | ≤10S | ||
| Revovery time TH | ≤30S | ||
| Standard test conditions | Temp. Humidity | 20±2℃,65±5%RH | |
| Standard test circuit | VH= VC=5V±0.1VDC; RL=4.7K±1% | ||
| Preheat time | ≧ 12 hours | ||
Calculation method of the sensor power:Ps= VC* VC* RS／(RS+ RL)* (RS+ RL)
