I have a question regarding connecting a Standard magnetic float switch with a relay to control a waterpump.
Relay being used is RM22LG11MR from Schneider with datasheet here
Under normal conditions, the relay is in Normally Open (12) state. But when the water level in the tank goes down, the float sensor overrides the relay default setting by bringing it to Normally Closed (14) state, and this should start the pump to fill the tank.
The timing diagram of the relay is also shown below The relay has two modes, i.e., a fill mode and an empty mode. I am using it in fill mode, so that as long as water tank is not full, the magnetic flow sensor activates the pump.
My question, is that the sensor has only three cables, one is neutral, one is ground, there is only one cable left which i am connecting to "Max" as shown in the figure, i could connect to Min as well. My concern is that in either case on of MAx or Min would be left Open due to the sensor and relay setup i am using, and now i am wondering how to correctly setup this sensor and relay together to make it work for my usecase. Any help will be highly appreciated