Absolute Encoder for Extreme Environments
The Same Rugged Design is Now Available in Multi Turn!
AR62 Datasheet
Rugged Construction
Dynapar announces the introduction of the compact AcuroTM XR absolute encoder. The new encoder incorporates three important design elements that make it ideal for harsh applications. First, unlike traditional absolute encoders that utilize optical technology, the new encoder utilizes a magnetic engine. Second, it uses considerably oversized bearings to handle high axial and radial shaft loads. Third, it is tightly sealed around the shaft and housing to resist liquid ingress.
Using magnets instead of light to generate the electronic signal increases the encoder’s resistance to shock, vibration, and moisture tremendously; so much so that this absolute encoder can now be used in applications previously unsuitable for sensitive optical units. Ball bearing design and installation are significant factors in affecting the useable life of an encoder, so the bearings used in the Acuro XR were selected for operation at maximum loading to achieve three times the useful life of conventional designs. The result is a mechanical life of up to 109 revolutions under simultaneous axial and radial loads of 200N.
Extreme environmental conditions usually mean a considerable amount of moisture is present. Therefore, the new absolute encoder uses special labyrinth seals around the shaft to meet stringent IP69k ratings. In addition to being submersible, the protection rating of the encoder means it is compatible for use in hygienic food and beverage processing. For extremely caustic environments, the encoder is available with a stainless steel housing to resist corrosion. For those applications not requiring this high level of protection, a standard washdown IP67 version is also available.
Compact Dimensions
With an installed height of only 32mm, the new encoder is the most compact size in its class. This means saving valuable space when machine dimensions are critical. Although mounting height is considerably reduced, the mounting face is kept to an industry-standard 58mm diameter to be backward-compatible with existing designs in the field. The choice of a 10mm or 12mm shaft size is standard.
Multiple Communication Options
Customers wanting to upgrade from existing fragile optical encoders (which typically use glass discs) will benefit from the numerous communication options available on the Acuro XR encoder. A Synchronous Serial Interface (SSI) or BiSS (Bi-Directional Synchronous Serial) interface is available for high-speed data transmission and reduced wire count. The prolific CAN industrial bus is also available, a popular choice for many industrial automation applications. In addition, customers wanting to convert from potentiometers or transducers will appreciate the analog output option, available in voltage (0-10V) or current (4-20mA) format.