1. Plug your main unit into the red main socket and switch it on.
2. Slowly and carefully turn the control knob of the switching threshold until you find a position at which the follow sockets are switched on and off. Make a note of this control position 1. (For loads with large current draw, the Follow sockets will always stay on).
3. Now switch off your main unit again, but leave it plugged in.
4. Turn the control knob of the switching threshold slowly and carefully until you find a position at which the follow sockets are switched on and off. Make a note of this control position 2 (for consumers without or with low standby current consumption, the follow sockets always remain off).
5. Now place the setting control centrally between control position 1 and control position 2. (In cases where you were unable to determine control positions 1 or 2, please place the setting control centrally between the control stops).