Rotational speed measurement for many applications:

The hydrotechnik's rotational speed sensor RS 110 uses pulsating red light (LED) refl ected by a special tag at the rotating target. By using a polarisation fi lter, only the refl ected light impulses are evaluated, disturbing refl ections (e.g. unevenness of the surface, bright metal parts, keyways or high-contrast areas) are not detected. This achieves a reliable rotational speed measurement from distances between 50 mm and 4 m*.25 refl ection tags are included. Enter the number of used reflection tags as calibration value into the measuring instrument.