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Principle Introduction
The sensing material of MEWOI-MIX1008 is tin dioxide SnO2, which has low conductivity in clean air. When the hydrogen(H2) gas exists, the conductivity of the sensor will be raise according to the gas concentration goes up. Through a simple circuit, to convert the changes of conductivity to correspond to the gas concentration. MEWOI-MIX1008 hydrogen(H2) gas has high sensitivity to hydrogen. The sensor can work in high temperature. It is low cost sensor and can be used in different applications. |
Features
High sensitivity to wide range of hydrogen High sensitivity Long life and low cost High anti-seismic |
Application
Domestic H2 gas leakage detectors Portable H2 gas detectors |
Technical Parameters
| Item | Specification |
| Target Gas | Hydrogen |
| Measurement Range | 100~1000ppm(H2) |
| Heater Voltage(Vh) | 5.0V±0.1V AC or DC |
| Loop Voltage | ≤24V DC |
| Heater Resistance(Rh) | 29Ω±3Ω(Room temperature) |
| Heater Power Consumption(Ph) | ≤950mW |
| Sensitivity | RS(in air)/RS(1000ppm H2)≥ 5 |
| Concentration Slope(α) | ≤0.6(R1000ppm/R400ppm H2) |
| Output In Target Gas | 2.5~4.0V(in 1000ppm H2) |
| Testing Condition | 20℃±2℃；55%±5%RH |
| Oxygen concentration in used place | 21%, no less than 18% If used in low oxygen concentration, pleasure contact for detail |
| Life Expectancy | 10 years |
Lable:
Hydrogen(H2) Sensor
