Originally Posted by
deepblue
i want to use 3 sensors to control my ro-di with 2 magnetic valves.
When the lowest sensor is on,it should open the 1st valve and start to fill ato tank untill is full (middle sensor).The 3rd sensor is for safety purpose and when is on,it should activate the 2nd valve and shut it in case that the 1st valve get malfuncioned-jammed.The second valve stays open untill it gets electricity.
How to program this?
PS.Now I am missing the 4th sensor for my sump level ,have you any suggestions?
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