SX135-40 Series

Draw wire sensor SX135 with snap back protection in measuring lengths of 10 meters up to 42.5 meters. By using the principle of an eddy current brake, the snapping protection increases safety by reducing the speed of retraction in the event of a sudden drop in pull-out force, thus preventing the snap effect. Cost-effective and flexible solution for a wide range of industrial applications. The dynamics of the draw wire transducer allows a high motion speed and acceleration of the measuring target. Its rugged design and high quality makes applications in harsh industrial environments possible. The key component of a SX135 draw wire sensor is a highly flexible steel wire rope that is winded single layered on an ultra-light capstan. This capstan is connected to the sensor housing by a prestressed spring. The end of the steel wire rope is equipped with a rope clip for connection to the target object. As soon as the distance between sensor and target object changes, the steel wire rope gets pulled out of the sensor and is rolled off the capstan (or vice versa). The shaft of the capstan is connected to a potentiometer (for analog output signals), or to an encoder (for digital output signals). If there is a rotation of the capstan due to a change in the distance to the target object, the sensor element will turn proportionally. This way the potentiometer, or the encoder converts a linear movement into a proportional electrical signal.