MP-4 combustible gas methane sensor
MP-4 combustible gas sensor (gas sensor, natural gas sensor) adopts multi-layer thick film manufacturing process. The heater and metal oxide semiconductor gas sensing layer are respectively made on both sides of the micro Al2O3 ceramic substrate, and are packaged in a metal shell. The conductivity of the sensor changes when the detected gas is present in the ambient air. The higher the concentration of this gas, the higher the conductivity of the sensor. This change in conductivity can be converted into an output signal corresponding to the gas concentration using a simple circuit.
Sensor Features
This product has good sensitivity to methane in a wide concentration range, and has the advantages of strong anti-interference ability, low power consumption, fast response recovery, good stability, long life, low cost, and simple driving circuit.
main application
1. Combustible gas leakage monitoring devices, fire/safety detection systems for homes, factories, and commercial use.
2. Combustible gas leak alarm, gas leak detector.
Technical indicators
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Product number |
MP-4 |
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product type |
Planar Semiconductor Gas Sensor |
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standard package |
metal package |
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detect gas |
Methane, Natural Gas, Biogas |
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Detection concentration |
300～10000ppm (methane, natural gas) |
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Standard Circuit Conditions |
loop voltage |
Vc |
≤24V DC |
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heating voltage |
VH |
5.0V±0.1V AC or DC |
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Load Resistance |
RL |
adjustable |
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Gas sensor characteristics under standard test conditions |
heating resistance |
RH |
85Ω±15Ω（room temperature） |
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Heating power consumption |
PH |
≤350mW |
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Sensitive body surface resistance |
Rs |
1KΩ～20KΩ(in 5000ppm Methane) |
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Sensitivity |
S |
Rs(in air)/Rs(in 500ppm Methane)≥5 |
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Concentration slope |
α |
≤0.6(R5000ppm/R1000ppm Methane) |
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Standard Test Conditions |
temperature humidity |
20℃±2℃；55%±5%RH |
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Standard Test Circuit |
Vc:5.0V±0.1V； VH: 5.0V±0.1V |
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Preheat time |
Not less than 48 hours |
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oxygen concentration |
21% (not less than 18%, (the oxygen concentration will affect the initial value, sensitivity and repeatability of the sensor, please consult when using it under low oxygen concentration) |
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life |
10 years |
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Note: Product parameters are subject to change without prior notice
production workshop
patent certificate
You can contact us through the online message and online customer service on the right, or you can call our national service hotline: 086-0371-60932951.
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