Okay
I have read this post like 10 times, and I don't see the solution for this problem anywhere specific, everybody comes up with about 2-3 solutions, but the author (as always on a forum) never gives the thumps up for what he/she did, that actually works.
So please dear author of this post, please elaborate, what did you end up doing, that made it work for you?
I might also be the stupid guy for asking, but I'm really missing the point here, as I don't see how I implement a working solution, as much in the thread seems to be done by guessing and not actual testing. (No working sketch/schematic/pictures)
I have read my way around the 4-20mA sensor loop (both 2- and 3-way loops) and I know it is complicated, however I just need something that works for a prototype of mine, the real pain in the ass of my project is not suppose to be how to send four milliamps or 20mA on a sensor line, but how to make/read the sensor data in the first place from my own home build liquid level sensor.