What should the CT Ratio be? How do I change between using CTs or Rogowski Coils?

If you are using CTs then use the ratio specified on the CT, however, if you are using Rogowski coils then there is no ratio to be set. You can set the option to use CTs or the Rogowski coils under “Wire settings” in the menu, then “iCon” (Current Connection). So use “CTCon” for CTs and “RCoilCon” for Rogowski coils.