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GM-402b Mems Methane Combustible Gas Sensor Gas Detectors CH4 C3h8

China GM-402b Mems Methane Combustible Gas Sensor Gas Detectors CH4 C3h8, Find details about China Gas Sensor, Gas Detector from GM-402b Mems Methane Combustible Gas Sensor Gas Detectors CH4 C3h8

Model NO.
GM-402B
Sensitivity
High
Certification
CE
Customized
Customized
Sensor Type
Mems
Detection Gas
CH4, C3h8
Detection Range
1-10000ppm
Trademark
DESON
Transport Package
Cartons
Specification
1ppm~10000ppm
Origin
China
Model NO.
GM-402B
Sensitivity
High
Certification
CE
Customized
Customized
Sensor Type
Mems
Detection Gas
CH4, C3h8
Detection Range
1-10000ppm
Trademark
DESON
Transport Package
Cartons
Specification
1ppm~10000ppm
Origin
China
Product description:
The MEMS combustible gas sensor utilizes a MEMS process to fabricate a micro-hot plate on a Si-based substrate using a gas-sensitive material that is a metal oxide semiconductor material having a lower conductivity in clean air. When there is a detected gas in the ambient air, the conductivity of the sensor changes. The higher the concentration of the gas, the higher the conductivity of the sensor. Change the conductivity with a simple circuit. The conversion is converted to an output signal corresponding to the gas concentration.
 
Sensor characteristics:
This product adopts MEMS technology, has strong structure and high sensitivity to flammable gas; it has the advantages of small size, low power consumption, high sensitivity, fast response recovery, simple drive circuit, good stability and long life.
 
Main application:
Applicable to the detection of gas leaks in consumer electronics applications such as mobile phones and computers; also applicable to flammable gas leak monitoring devices, gas leak detectors, fire/safety detection systems for household and commercial use.
 
Product parameters:
  • Product Type: MEMS combustible gas sensor
  • Detection gas: methane, propane, etc.
  • Detection concentration: 1 ~ 10000ppm (C3H8)
  • Loop voltage VC: ≤24V DC
  • Heating voltage VH : 2.8V ± 0.1V AC or DC
  • Load resistance RL: adjustable
  • Heating resistor RH : 80Ω ± 20Ω (room temperature)
  • Heating power consumption PH : ≤ 80mW
  • Sensitive body resistance RS: 1KΩ~30KΩ (in 5000ppmCH4)
  • Sensitivity S :R0(in air)/Rs(in 5000ppmCH4)≥2
  • Concentration slope α: ≤0.9 (R5000ppm/R1000ppmCH4)
  • Temperature, humidity: 20 °C ± 2 ° C; 55% ± 5% RH
  • Standard test circuit: VH: 2.8V ± 0.1V; VC: 5.0V ± 0.1V

GM-402b Mems Methane Combustible Gas Sensor Gas Detectors CH4 C3h8GM-402b Mems Methane Combustible Gas Sensor Gas Detectors CH4 C3h8
Instructions: The above fig is the basic test circuit of GM-402B.The sensor requires two voltage inputs: heater voltage (VH) and circuit voltage (VC). VH is used to supply specific working temperature to the sensor and it can adopt DC or AC power. Vout is the voltage of load resistance RL which is in series with sensor. Vc supplies the etect voltage to load resistance RL and it should adopt DC power

GM-402b Mems Methane Combustible Gas Sensor Gas Detectors CH4 C3h8

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