粮仓料位的显示与报警装置是粮食处理工厂化中的必要装置。现介绍一种简单可靠的声光报警电路,此电路在多座粮食处理中心使用,性能可靠,且造价低。当某一粮仓已装满粮时,装在仓内的薄膜式料位开关(LB)因受压而闭合,接通报警电路,使相应的指示灯发光,同时报警电铃发出讯响,表明粮仓已装满粮食。为了不使报警电铃(DL)长 Grain silo level display and alarm device is the necessary equipment in food processing factory. Now introduce a simple and reliable sound and light alarm circuit, the circuit used in more than food processing center, reliable performance, and low cost. When a silo has been filled with food, the film-type level switch (LB) installed in the silo closed due to pressure, the alarm circuit is turned on, the corresponding indicator light is glowed, and an alarm bells ring to indicate that the granary Filled with food. In order not to make alarm bells (DL) long