MQ-5 gas sensor has high sensitity to Methane, Propane and Butane, and could be used to detect both Methane and Propane.
Character
1. MQ-5 gas sensor with good sensitivity to Combustible gas in wide range,
2. High sensitivity to Methane, Butane and Propane,
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-5 | ||
Sensor Type | Semiconductor | ||
Standard Encapsulation | Bakelite (Black Bakelite) | ||
Detection Gas | LPG, Methane, coal gas | ||
Concentration | 300-10000ppm( Methane, Propane, Butane, H2) | ||
Circuit | Loop Voltage | Vc | ≤24V DC |
Heater Voltage | VH | 5.0V±0.2V AC or DC | |
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 C3H8)≥5 | |
Slope | α | ≤0.6(R1000ppm/R500ppm H2) | |
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 | ||
