a voltage intended to power a relay or any other organ that must relax when a determined deviation between the two voltages to be monitored is shown, these being produced in the secondaries placed in series in
This simple level circuit works by turning ON one relay & turn OFF another relay once the level of fluid exceeds the set limit. Whenever the water level contacts the probes then a positive supply is given to the base terminal of the Q1 transistor throughout the fluid. So this makes the Q...