MQ-2 gas sensor for flammable gas
High sensitity to LPG,Propane and Hydrogen,Methane and other combutible gas.Good performance
MQ-2 gas sensor for flammable gas
Character
1. MQ-2 gas sensor with good sensitivity to Combustible gas in wide range,
2. High sensitivity to LPG, Propane and Hydrogen,
3. Long life and low cost,
4. Simple drive circuit.
Application
1. Domestic gas leakage detector,
2. Industrial Combustible gas detector,
3. Portable gas detector,
Technical Data
Model No. | MQ-2 | ||
Sensor Type | Semiconductor | ||
Standard Encapsulation | Bakelite (Black Bakelite) | ||
Detection Gas | Combustible gas and smoke | ||
Concentration | 300-10000ppm | ||
Circuit | Loop Voltage | Vc | ≤24V DC |
Heater Voltage | VH | 5.0V±0.2V ACorDC | |
Load Resistance | RL | Adjustable | |
Character | Heater Resistance | RH | 31Ω±3Ω(Room Tem.) |
Heater consumption | PH | ≤900mW | |
Sensing Resistance | Rs | 2KΩ-20KΩ(in 2000ppm C3H8 ) | |
Sensitivity | S | Rs(in air)/Rs(1000ppm isobutane)≥5 | |
Slope | α | ≤0.6(R5000ppm/R3000ppm CH4) | |
Condition | Tem. Humidity | 20°C±2°C, 65%±5%RH | |
Standard test circuit | Vc:5.0V±0.1V VH: 5.0V±0.1V | ||
Preheat time | Over 48 hours | ||
