Colour temperature

I have S1931 and I want to set colour temperature approximately to 8000K

How to do that ? There are 5000,6000 and 9300

On my old CRT I was used to 8000K and I do not have calibration sond. S1931 allows RGB regulation per basis. How to set this - pure approximation is enough.

Thanks.

Thanks, that's exactly what I needed to know