An easy mounting possibility is made possible by using clamp discs. By using these clamp discs for mounting and adjustments, the zero-point setting can be carried out in a simple way. After loosening the clamp discs the rotary encoder is rotatable along its own axis. The coupling will be fixed during this adjustment. The zero point can be easily adjusted within one revolution. It is generally recommended to do a rough adjustment, especially for multi-turn encoders before starting the mounting procedure.