Product Introduction
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MC119 Catalytic Element Product Description
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The MC119 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 flammable gas is present, the resistance of the detection element increases, causing a change in the bridge output voltage. This voltage change is directly proportional to the gas concentration. The compensation element provides reference and temperature/humidity compensation.
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MC119 Catalytic Element Sensor 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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MC119 Catalytic Element Main Applications
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Detection of concentration of flammable gases such as natural gas, liquefied gas, coal gas, alkanes, and organic solvent vapors like gasoline, alcohols, ketones, benzene at industrial sites.
Flammable gas leak alarms; flammable gas detectors; gas concentration meters.
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MC119 Catalytic Element Technical Specifications
| Product Model |
MC119/ MC119C |
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| Product Type |
Carrier catalytic gas sensing element |
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| Standard Package |
Metal package, metallurgical powder mesh |
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| Operating Voltage (V) |
2.5±0.1 |
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| Operating Current (mA) |
100±10 |
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| Sensitivity (mV) |
0.3% Acetylene |
15~35 |
| Linearity (%) |
≤5 |
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| Measurement Range (%LEL) |
0~100 |
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| Response Time (90%) |
Less than 10 seconds |
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| Recovery Time (90%) |
Less than 30 seconds |
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| Operating Environment |
-40 to +70°C, below 95% RH |
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| Storage Environment |
-20 to +70°C, below 95% RH |
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| Dimensions (mm) |
MC119:9.5×14×19 MC119C: 8×10×14 |
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