Still had one problem after another....
So i figured it out, the actual output was +/- 10V so i changed everything to 0-10V and the existing things on a separate
card on 4-20mA and i made a voltage divider a bit different than yours.
I measured everything and changed the values to 1,5K and 1,8K.
I know it's weird but i measured the voltage and it was 0-7,26V on your setup so i calculated the values to get to my 3,3V
fast. I'm going to look in to getting to 10V but that will have to wait now.
I must thank you for the values of resistors you gave me, it really put me in the right direction.