Hi guys!
I have been challenged for a few days from which I have not yet found a satisfactory solution.

It would be very helpful if anyone could help.
Check out the circuit below. There are two adjustable power supplies and a single circuit that monitors any short circuit at the output of these power supplies (voltage below 1.2V).

I would like to keep each of the power supplies isolated so that I can use them independently, in series or in parallel.
However, I need the circuit ground that monitors short circuit to be on the same level as the ground of the power supplies, that is, equipotentialized (I don't know if this word makes sense in English, my native language is PT-BR); so that it can detect whether or not the output voltage is above 1.2V correctly.
Well, does anyone have any idea how I could keep them isolated but with equipotentialized ground?
Thanks in advance!