Water Level Controller Circuit Diagram With Dry Run Protection. Circuit for sms based pump control. Top bottom flow indicator.
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Before 4 years i made your circuit using ic 4049 and it was working perfectly except dry run and i contacted you and get some instructions. Automatic water level controller circuit with dry run protection for sump and overhead tank using single npn transistor and ball type float switch. Top bottom flow indicator.
Turns off the motor when there is no flow of water into the overhead tank.
It also prevents dry run of the pump in case water level in underground tank goes below suction level. Now i am requesting you to design a water level controller with dry run protection using aurdiuno uno 328p because i saw one circuit with 328p and excellent working with minimum components. Circuit diagram of the water pump dry run guard is shown in fig. High and low voltage protection circuit diagram using lm358.
