Inductive counting alarm device
An alarm device and alarm technology, applied in the direction of alarms, instruments, etc., can solve the problems of easy omission, affecting the working environment, hidden dangers, etc., and achieve the effect of simple structure and easy use.
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[0011] Specific embodiments of the present invention will be further described in detail below.
[0012] Such as figure 1 As shown, an induction counting alarm device of the present invention uses 220V mains as the power supply, and the power supply is first connected to the overcurrent protection switch, and then connected to other devices to enhance its safety. The power supply is connected to the alarm and the transformer, and the transformer provides 24V direct current for the counter and the sensor. The counter is connected to the alarm through the relay.
[0013] When the induction counting and alarming device of the present invention is working, the upper limit value of the counter alarming is manually set at first. After the sensor detects the alarm source, it sends a signal to the counter, and the counter counts. When the accumulated number of signals received by the counter reaches the upper limit of the alarm, the counter is turned on, and the alarm starts to alar...
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