I've got an off-grid home and am exploring how to use the Victron system to automatically manage the hydro generation based on the battery charge level and the available head level. The head sensor installed is a 4-20mA device so I think I can connect it to a GX Tank 140 and monitor it from the Cerbo GX, and use one of the relay outputs to open and close the turbine valve based upon available water levels as it's seasonal. My question is whether I can operate the relay based on two parameters - eg enable turbine when head level is above 90% and battery below 50%, disable turbine when battery above 90% or head level below 50%, or something like that?
