Siemens, Valve Positioners, models:

0731-83059498	Manual
6DR55 Series	Manual
73N	Installation And Service Instructions Manual
760 Series	Installation Instruction
SIPART PS100	Compact Operating Instructions
SIPART PS2 6DR5 series	Compact Operating Instructions
SIPART PS2 6DR50 Series	Manual
SIPART PS2 6DR5xx0 series	Compact Operating Instructions
SIPART PS2 FF	Compact Operating Instructions
SIPART PS2 PA 6DR55 Series	Operating Instructions Manual
SITRANS VP300	Operating Instructions Manual