The Skorpio X3 product line is quite dated, and had already been replaced a few years ago by the newSkoprio X4 series.
If you need support material for obsolete product lines such as Skoprio X3, you can find them on our Corporate Extranet at https://partnernet.datalogic.com/ .
I invite you to read also this answer for more information on how to find material for Skorpio X3