GM-602B Hydrogen Sulfide Gas Sensor

The MEMS hydrogen sulfide gas sensor is composed of a Si-based micro-hot plate made of MEMS technology and a metal-oxide-semiconductor material with low conductivity in clean air. When the detected gas is present in the ambient air, the conductivity of the sensor changes. The higher the concentration of this gas, the higher the conductivity of the sensor. The change in conductivity can be converted into an output signal corresponding to the gas concentration using a simple circuit.

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Sensor Features
This product adopts MEMS technology, with solid structure and high sensitivity to hydrogen sulfide; it has the advantages of small size, low power consumption, high sensitivity, fast response and recovery, simple driving circuit, good stability and long life.

 

main application
Portable and stationary hydrogen sulfide monitors; hydrogen sulfide detectors.

 

Technical indicators

Product number

GM-602B

product type

MEMS hydrogen sulfide gas sensor

standard package

Ceramic package

detect gas

Hydrogen sulfide, benzene, etc.

Detection concentration

0.5ppm~50ppm(H2S)

Standard Circuit Conditions

loop voltage

VC

≤24V DC

heating voltage

VH

1.9V±0.1V AC or DC

Load Resistance

RL

adjustable

Gas sensor characteristics under standard test conditions

heating resistance

RH

80Ω±20Ω(room temperature)

Heating power consumption

PH

≤40mW

sensitive body
resistance

RS

1KΩ~30KΩ(in 50ppmH2S

Sensitivity

S

R0(in air)/Rs(in 50ppmH2S)≥3

Concentration slope

α

≤0.6(R200ppm/R50ppmH2S)

Standard Test Conditions

temperature humidity

20℃±2℃;55%RH±5%RH

Standard Test Circuit

VC:5.0V±0.1V;
  V:1.9V±0.1V


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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