is a member of the 3570 family of pneumatic valve positioners. You can find the full technical specifications, installation, and maintenance guides in the Fisher 3570 Instruction Manual (Emerson) Legacy Data & Replacement : In many industrial applications, the has been superseded by the Fisher 3660
: Designed for single-acting actuators on sliding-stem valves. Instruction Manual D101402X012 (June 2022). Fisher 3560 Valve Positioner Manual Pdf