Every taught-in switching threshold can be retaught (overwritten) by pressing the SET button again.Pressing and holding the "SET" button for > 5 s completely deletes the taught-in value. The yellow and green LEDs go out simultaneously toindicate that this procedure has been completed.Minimum and maximum values for the analog output Q2 are taught in in the same way as those for the switching output:The following values apply: A = 4 mAB = 20 mAThis provides three different options for operation: