Main Features:
1. This product has a good sensitivity which can measure the concentration of hydrogen within a wide range.
2. Long working life, low cost.
3. This product is able to work under simple driver circuit.
4. Family use gas leak alarm apparatus. .
5. Industrial combustible gas alarm apparatus.
|
Parameters |
Description |
|
Detectable concentration |
100-1000ppm(hydrogen) |
|
Circuit voltage（ Vc） |
≤24V DC |
|
Heating voltage（ VH） |
5.0V±0.2V AcorDC |
|
Load resistance（ RL） |
adjustable |
|
Heating resistor（ RH） |
31Ω±3Ω（indoor temperature） |
|
Heating power consumption（ PH） |
≤900mW |
|
Surface resistance of Sensitive body（ Rs） |
2KΩ-20KΩ(in 1000ppm H2) |
|
Sensitivity （ S） |
Rs(in air)/Rs(1000ppm hydorgen)≥5 |
|
Concentration slope（α） |
≤0.6(R5000ppm/R3000ppm CH4) |
|
Temperature |
20℃±2℃ |
|
Humidity |
65%±5%RH |
|
Standard test circuit |
Vc:5.0V±0.1V； VH: 5.0V±0.1V； |
|
Warm up time |
No less than 48hours |
