| 摘要 |
<p>An integrated gas detector integrating audible and visual alarms, comprising: an explosion-proof housing, a gas detection unit disposed in the explosion-proof housing and used for detecting gas concentration, and a signal transmission unit disposed in the explosion-proof housing and used for receiving and processing a gas concentration signal from the gas detection unit; the explosion-proof housing comprises a cylinder shaped upper cover (23) having an annular inward flange (231); the signal transmission unit and the gas detection unit are located at the two sides of the annular inward flange (231), and lean respectively against the upper surface and the lower surface of the annular inward flange (231), and are detachably and fixedly connected to each other by a fastening device. The integrated gas detector integrating audible and visual alarms also comprises a visual alarm unit and an audible alarm unit; the visual alarm unit is disposed at the side of the signal transmission unit; the audible alarm unit is disposed at the side of the gas detection unit; and when the signal transmission unit judges, according to the gas concentration signal, that the gas concentration exceeds a preset alarm value, the visual alarm unit and the audible alarm unit will be triggered. The gas detector has such advantages as small size, low cost, corrosion-resistance and full functionality.</p> |
