Product introduction
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Catalytic element MJC4/3.0L product description
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The MJC4/3.0L catalytic element operates on the principle of catalytic combustion effect. It consists of a detection element and a compensation element paired to form two arms of a Wheatstone bridge. When exposed to combustible gas, the resistance of the detection element increases, causing a change in the bridge output voltage. This voltage change increases proportionally with gas concentration. The compensation element serves as a reference and provides temperature and humidity compensation.
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Catalytic element MJC4/3.0LSensor features
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Bridge output voltage is linear
Fast response speed
Good repeatability and selectivity
Stable and reliable operation
Excellent resistance to H2S and organic silicon poisoning
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Catalytic element MJC4/3.0LMain applications
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Detection of concentration of combustible gases such as natural gas, liquefied petroleum gas, coal gas, alkanes, and organic solvent vapors such as gasoline, alcohols, ketones, benzene in industrial sites.
Combustible gas leak alarms; combustible gas detectors; gas concentration meters
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Catalytic element MJC4/3.0LTechnical specifications
| Operating voltage (V) | 3.0±0.1 | ||
| Operating current (mA) | 110±10 | ||
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Sensitivity (mV) |
1% methane | 20~40 | |
| 1% butane | 30~50 | ||
| 1% hydrogen | 25~45 | ||
| Linearity (%) | ≤5 | ||
| Measurement range (%LEL) | 0~100 | ||
| Response time (90%) | Less than 10 seconds | ||
| Recovery time (90%) | Less than 30 seconds | ||
| Operating environment | -40 to +70°C, below 95% RH | ||
| Storage environment | -20 to +70°C, below 95% RH | ||
| Dimensions (mm) | Large: 9.5×14×19, Small: 8×10×14 | ||
