Automatic Water Level Controller Circuit With Dry Run Protection | For Sump & Overhead Tank | Transistor Based
Author : Manikandan K J Circuit Sponsor : kjmindia.in Water level controller is necessary for many reasons. Water level can be monitored and controlled automatically without any human intervention. Thus, it saves water wastage, electricity and time. This can be used both in industries and houses. The circuit I am going to share in this post controls water level in the overhead tank or any tank. Can be used in tanks of any liquids (eg. oil) provided it should not be hot. The cost of making this circuit is very low and can be assembled on a general purpose board if you are using it for your personal use. For commercial purposes, you can buy one from here . Working of the circuit: This circuit is controlled by a single NPN transistor with the help of two cable float switches. It will constantly monitor both the levels of sump and overhead tank and protects the motor pump from dry run. The unregulated DC voltage from the transformer is regulated by the volta...