Compact, saltwater-resistant rotary encoder

Ideal for use on drive units in maritime applications: the ACURO 62 from Hengstler

The Hengstler ACURO AR62 absolute rotary encoder has a very compact and extremely robust design. These properties make the encoder ideal for maritime applications. It is also used as a redundant version with multiple sensors in one housing.

The ACURO AR62 absolute rotary encoder is used in deck cranes and winches, as well as in Azipod or Voith-Schneider drive units. Within one revolution the rotary encoder delivers a resolution of 12 bits in the single-turn version, and 12, 13 or 16 bit in the multi-turn variant. The position is measured with an absolute precision of ±1° and repeatability of ±0.2°.

To record the number of revolutions, the ACURO AR62 is equipped with a batteryless, zero-energy and non-wearing electronic multi-turn unit. Connection to a higher-level controller is achieved via CANopen interfaces – in the single-turn version also via an SSI interface and an analog interface (0 – 10 V or 4 – 20 mA).

Hengstler’s ACURO AR62 is an absolute rotary encoder that is designed to easily withstand all environmental conditions. The extremely robust construction of the encoder makes it insensitive to climate fluctuations, vibrations, shocks, chemical influences, high shaft loads and hard accelerations. In addition, the rotary encoder has a housing made of saltwater-resistant aluminum with IP67/IP69K protection and is therefore approved for maritime applications in accordance with the classification organization Det Norske Veritas (DNV GL). Optionally, the ACURO AR62 is also available with a stainless steel housing.

The ACURO AR62 has a very compact design, with a housing diameter of 58 mm and an overall depth of 32 mm. Versatile mounting of the rotary encoder for the particular application is assured by the integrated synchro flange.