The vast majority of industrial water used in coal mines is provided by the design pool of the ground purification 2 2 water level signal comparison circuit. Only a manhole is left on the purification pond as an outlet for removing mud. In this way, the pump driver cannot see the actual water level of the pond. When the pond is empty, it will force the underground to stop production, and when the water overflows, it will waste Bao water resources. In order to solve this problem, an automatic monitoring and control circuit is designed to perform real-time monitoring and control of the water level of the purified pool to achieve the purpose of automatic water level monitoring.
