Here I am uploading a manual of Sokkia Total Station 20k Series SET 220k SET 320k SET 520k & SET620k). So just simply click on link bellow and download User Guide or operating manual
Operation Guide or Manual for Sokkia Total Station 20K Series(SET 220k, Set 320k, SET 520k & SET 620K)in English
Aamir Shahzad 