I need the design of a water level control system involving two tanks (an upper tank and a lower tank).
I have a float switch to control the level of the upper tank. But I have a floatless switch (Omron 61F-GP) with a 3-prongs sensor probe for the lower tank. I have a water pump in-between the two tanks. The pump should be automatically turned on when the upper tank reaches the lower level (as indicated by the float switches). It pumps water from the lower tank and only switches off when lowest level of lower tank is reached is reached. The pump should also switch off if the upper level of the upper tank is reached, though with a little delay of some 30 seconds to enable water reach the top of the tank. kindly assist in designing the circuit for this pictorially. The components to include contactor, MCB (as isolator switch), auto/manual override switch, on/off indicator lamp(s), power source, etc.

 

This post is way to similar to another post asking for help with the same system. So please examine that other post for the solution.

 

One thread on the same topic, please.

Continue here:
https://forum.allaboutcircuits.com/...trol-involving-two-tanks.204429/#post-1953866