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PDF MQ307A Data sheet ( Hoja de datos )
| Número de pieza | MQ307A | |
| Descripción | CO GAS SENSOR | |
| Fabricantes | HANWEI | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de MQ307A (archivo pdf) en la parte inferior de esta página. Total 2 Páginas | ||
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HANWEI ELETRONICS CO.,LTD
MQ-307A
http://www.hwsensor.com
MQ307A CO GAS SENSOR
The MQ307A is a tin dioxide semiconductor gas sensor
which has an excellent performance in CO detection. Using a
mini-bead type sensing element with a periodic temperature
change operation method, high sensitivity, selectively,
small effect from humidity and other remarkable
characteristics have been achieved. The MQ307A realizes
the development of reliable CO detection devices.
Structure
Gas sensitive semiconductor material is a mini bead type and a heater coil
and electrode wire are embedded in the element. The sensing element is
installed in the metal housing which uses double stainless steel mesh
(100mesh) in the path of gas flow.
Operating conditions
When the sensor is operated with high/low periodic operation (Fig 2), sensor
signal changes according to the temperature dependencycharacteristics. By
detecting the sensor signal at sufficient timings (at a high temperature for
methane and at a low temperature for CO), selective detection of both
methane and CO has been achieved. Fig 3 shows the standard operation
circuit and FIg 4 shows the sensitivity characteristics of the MQ307A at low
temperature.
TEL: 86-371-67169070 67169080
FAX: 86-371-67169090
E-mail: [email protected]
Free Datasheet http://www.Datasheet4U.com
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| Páginas | Total 2 Páginas | |
| PDF Descargar | [ Datasheet MQ307A.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| MQ307A | CO GAS SENSOR | HANWEI |
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