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MQ-4 Combustible Gas Sensor

MQ-4 Combustible Gas Sensor

Sensor de gases combustibles, principalmente sensible a metano, propano y butano.

COD: WINMQ4

Peso: 0.005 Kg

Disponibilidad: En Stock

Su correo electrónico:

ARS 73.00

Cantidad:

El producto no está disponible para la venta en este momento

Características

Sensitive material of MQ-4 gas sensor is SnO2, which with lower conductivity in clean air. When the target combustible gas exist, The sensor's conductivity is more higher along with the gas concentration rising. Please use simple electrocircuit, Convert change of conductivity to correspond output signal of gas concentration.
MQ-4 gas sensor has high sensitity to Methane, also to Propane and Butane. The sensor could be used to detect different combustible gas, especially Methane, it is with low cost and suitable for different application.

Character:

  • Good sensitivity to Combustible gas in wide range                   
  • High sensitivity to Natural gas                                       
  • Long life and low cost                                           
  • Simple drive circuit

Application:                       

  • Domestic gas leakage detector
  • Industrial Combustible gas detector
  • Portable gas detector
Model No.
MQ-4
Sensor Type
Semiconductor
Standard Encapsulation
Bakelite (Black Bakelite)
Detection Gas
Natural gas/ Methane
Concentration
300-10000ppm
( Natural gas / Methane)
Circuit
Loop Voltage
Vc
≤24V  DC
Heater Voltage
VH
5.0V±0.2V ACorDC
Load Resistance
RL
Adjustable
Character
Heater Resistance
RH
28.5Ω±3Ω(Room Tem.)
Heater consumption
PH
≤900mW
Sensing Resistance
Rs
2KΩ-20KΩ(in 5000ppm CH4 )
Sensitivity
S
Rs(in air)/Rs(5000ppm CH4)≥5
Slope
         α
≤0.6(R5000ppm/R3000ppm CH4)
Condition
Tem.  Humidity
20??±2???65%±5%RH
Standard test circuit
Vc:5.0V±0.1V,
           VH: 5.0V±0.1V
Preheat time
Over 48 hours

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