MP-4 Methane Sensor
High sensitity to Alcohol, good resistance to disturb of gasoline, smoke and vapor & Low price, small size
MP-4 Methane Sensor
MP4 flat surfaced sensor is used for flammable gas detection, which adopts advanced flat production
technology. The heater and metal oxide semiconductor material on the ceramic substrate of
subminiature Al2O3 are fetched out by electrode down-lead, encapsulated in metal socket and
cap. When the target gas exists, the higher the concentration of target gas in the air, the higher
conductivity of sensor is. Use simple electro circuit to convert the variation of conductivity to output signal corresponds to gas concentration.
Features
* High selectivity
* High sensitivity to Methane
* Small size
* 5V rated voltage, low consumption
* Fast response and resume
* Good stability and long life
* Simple drive circuit
Application
Widely used for household harmful gas detection and
automatic exhaust, living air device.
Performance parameters
Model | MP-4 | ||
Type | Semiconductor flat surfaced gas sensor | ||
Standard encapsulation | Metal | ||
Target gas | CH4, Natural gas | ||
Detection concentration | 300-10000ppm(CH4,Natural gas) | ||
Standard circuit | Loop voltage | Vc | ≤24V DC |
Heating voltage | VH | 5.0V±0.2V ACorDC | |
Load resistance | RL | Adjustable | |
Standard features of sensor | Heating resistance | RH | 80Ω±10Ω(Room Tem.) |
Heating consumption | PH | ≤300mW | |
Surface resistance | Rs | 2KΩ-20KΩ(in 5000ppm CH4) | |
Sensitivity | S | Rs(in air)/Rs(5000ppmCH4)≥5 | |
Concentration slope | α | ≤0.6(R5000ppm/R3000ppmCH4) | |
Standard condition of test | Temperature, humidity | 20°C±2°C;65%±5%RH | |
Standard testing circuit | Vc:5.0V±0.1V; VH: 5.0V±0.1V | ||
Warm-up time | More than 48 hours | ||
