I have disconnected my VE Net Tank Monitor and need to reconnect to the new Cerbo GX. Each tank monitor has two red wires and one black. I found that when I connect the two red wires to the Cerbo it shows Disconnected. When I connect the black wire and one of the red wires it shows connected but with a 0% level. What connections do I need to make for the device to work? It worked fine before with the VE Tank Monitor connected to the old VE Net Blue Power.