HELP! I'm looking for advice or parts to problem solve a prototype.
The goal is to fill a clear cylinder closed top vessel (such as a clear pickle jar with a lid on top) with liquid through a valve in the bottom of the vessel; filled with an electrical pump. Pump and valve not the problem.
Vessel could be coupled with the pumping station either empty, or any amount of liquid other than full level; pump actuates when seated together....
Problems to solve are:
1.) Turning on the pump when the two are coupled
2.) HOW to immediately and automatically shut the pump off when vessel has reached maximum fill level.
Possible solutions #2 are: retro reflective sensor, direct infrared optical sensor or, most useful, would be a pressure type switch that is connected to the fuel flow line that immediately detects that the vessel is at full capacity and therefore shuts off the pump.
Thanks for your help.