Product introduction
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Hot-wire alcohol sensor MR513 product description
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The MR513 hot-wire alcohol sensor operates on the principle that gas adsorption on the surface of a metal oxide semiconductor causes changes in thermal and electrical conductivity, with gas concentration determined by the change in resistance of a platinum coil. The MR513 consists of a detection element and a compensation element paired to form two arms of a Wheatstone bridge. When exposed to alcohol, the resistance of the detection element decreases, causing a change in the bridge output voltage, which increases proportionally with gas concentration. The compensation element provides reference and temperature compensation.
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Hot-wire alcohol sensor MR513Sensor features
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High sensitivity, large signal output
Short initial stabilization time, fast response
Good repeatability, stable and reliable operation
Low power consumption, miniaturized design
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Hot-wire alcohol sensor MR513Main applications
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Suitable for portable alcohol detectors in civil and industrial fields, and automotive ignition control systems, etc.
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Hot-wire alcohol sensor MR513Technical specifications
| Model |
MR513 |
| Product type |
Hot-wire gas sensing element |
| Standard package |
Plastic package |
| Operating voltage(V) |
2.5±0.1 |
| Operating current(mA) |
≤100 |
| Sensitivity(mV) |
≥60 (Ethanol100ppm) |
| Linearity (%） |
0~5 |
| Response time (90%) |
≤20 |
| Recovery time (90%) |
≤40 |
| Operating environment |
-20－+50°C below95%RH |
| Storage environment |
-20—+70℃ Below70%RH |
| Dimensions (mm） |
Φ12mm×10mm |
