Firedamp Gas Sensor
Catalytic combustion principle
Fast responce for CH4,Butane and H2
Stable performance with RoHS
Firedamp Gas Sensor
1. Summary
MC203 operate on the catalytic combustion principle, and its two arms of electric bridge consists of a test element and a compensate element. The resistance of the test element rised when meeting the combustible gas, in the same time, the output voltage of the bridge changed, the voltage variable is rised in direct proportion as the gas concentration, the compensate element as a reference, and compensate of temperature and humidity.
2. Feature
*The bridge output in liner
*Fast response
*Good reproducibility and selectivity
*Working stable
*Excellent resistance of H2S,silicon poisoning
3. Application
Application in gas concentration detection in industrial field such as natural gas, LPG, coal gas, alkane ect combustible gas, and gasoline, Alcohol, ketone, benzene ect organic solvent;
Combustible gas leaking alarm or detectors;
Gas concentration meter
4. Specification.
Type | MC203 | |
Series | Catalytic | |
Working voltage(V) | 3.0±0.1 | |
Working current(mA) | 110±10 | |
Sensitivity(mV) | 1% Methane | 25~50 |
1% Butane | 30~50 | |
1% Hydrogen | 25~45 | |
Liner(%) | ≤5 | |
Test range(%LEL) | 0~100 | |
Response time (90%) | Less than 10s | |
Recovery time (90%) | Less than 30s | |
Working envirenment | -40-+70°C less than 95%RH | |
Storage | -20—+70°C less than 95%RH | |
Size(mm) | Φ20mm×21mm |