Application of Photoelectric Liquid Level Sensor in Pressure Tank
The use of pressure tanks to supply water to urban residents means that tap water is first put into the ground pool, and then lifted to the pressure tank by the pool submersible pump, and then transported to each user. Although the pressure tank solves the problem of water supply for urban residents, the current water supply from the pool to the pressure tank mostly uses a contact pressure gauge to directly control the AC contactor to make the pool submersible pump close. The disadvantage of this control method is that when the water in the pool is insufficient, the submersible pump motor will also run idly, which will easily cause insulation damage, and the pressure gauge contacts are directly connected to the 380V voltage, which is prone to sparks and burn out.
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