My setting is at about 5.5 or 6 to get a 10 ppm. I can't tell if it shuts itself off or not, but I'm hoping it does, and its the other light, the red one, that doesn't go on when it stops, which it should, according to the instructions that came with the generator. If the generator does go off, then maybe completely, which would explain why the red light does not go on. *grin*
Aldi O
