My glider came with a PZL KI13 Compass - it turns fine but seems to be 90° out of alignment. I tried to adjust it and found I could choose between 90 or 180° of incorrectness!
It might be because of the Borgelt B40 vario I put next to it so I may not be able to keep this setup. I didn't notice if it was correct before changing the position of a couple of instruments.
Does anyone have a manual or instructions on how to adjust it?
I don't know if the (2) E-W & N-S screws should be turned 0-360 degrees (1 full turn) or multiple full turns etc.

thanks
Chris