Product Introduction
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Hydrogen Sulfide Gas Sensor (H2S Gas Sensor) WSP7110 Product Description
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The WSP7110 hydrogen sulfide gas sensing element uses advanced planar production technology, forming a heater and metal oxide semiconductor gas sensing material on a miniature Al2O3 ceramic substrate, with electrode leads extending out, packaged in a metal base and cap. When the detected gas is present, the higher the concentration of the gas in the air, the higher the conductivity of the sensor. A simple circuit can convert this change in conductivity into an output signal corresponding to the gas concentration.
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Hydrogen Sulfide Gas Sensor (H2S Gas Sensor) WSP7110Sensor Features
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High sensitivity to hydrogen sulfide gas
Small element size
5V constant voltage, low power consumption
Fast response and recovery characteristics
Simple drive circuit
Excellent stability and long service life
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Hydrogen Sulfide Gas Sensor (H2S Gas Sensor) WSP7110Main Applications
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Used in household and environmental freon detection gas devices, etc.
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Hydrogen Sulfide Gas Sensor (H2S Gas Sensor) WSP7110Technical Specifications
| Product Model |
WSP7110 |
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| Product Type |
Planar semiconductor gas sensing element |
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| Standard Package |
Metal |
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| Detection Gas |
Hydrogen sulfide, acetylene, benzene, etc. |
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| Detection Concentration |
1-50ppm |
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| Standard Circuit Conditions |
Loop Voltage |
Vc |
≤24V DC |
| Heating Voltage |
VH |
5.0V±0.2V ACorDC |
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| Load Resistance |
RL |
Adjustable |
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| Gas Sensing Element Characteristics under Standard Test Conditions |
Heating Resistance |
RH |
90Ω±5Ω(Room Temperature) |
| Heating Power Consumption |
PH |
≤300mW |
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| Surface Resistance of Sensing Body |
Rs |
1KΩ-100KΩ(in 5ppmHydrogen Sulfide) |
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| Sensitivity |
S |
Rs(in air)/Rs(5ppmHydrogen Sulfide)≥3 |
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| Concentration Slope |
α |
≤0.65(R200ppm/R50ppmHydrogen Sulfide) |
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| Standard Test Conditions |
Temperature, Humidity |
20℃±2℃；65%±5%RH |
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| Standard Test Circuit |
Vc:5.0V±0.1V； VH: 5.0V±0.1V |
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| Preheating Time |
Not Less Than48Hours |
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