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 opposition of two transformers in such a way that When the two voltages are equal...
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...