Thank you Dieter for your quick answer but I think that I was not so precise in my previous posts.
I left it today for 30 minutes to warm up, the pitch is jumpin around the tuned frequency 1-2 cents.
The main problem is still the octave switch, which still is not doubling the frequency or half double it.
Lets say I tune in C@130Hz,
I turn the knob one octave up, the pitch is around C#@280Hz
I turn the knob one octave down. from the initial position the pitch is around B@61Hz
Also I run a sequence with Dark time, it has similar results, not exactly doubling the pitch with octave range
switch at dark time at 1V
Sorry for the misconception...
Best regrads
Miltos