HS35R2048847701 Danaher
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The HS35R2048847701 is an encoder produced by Danaher as part of the Dynapar Encoders series. It offers a resolution of 2048 PPR and supports axial shaft loads up to 30 pounds with a maximum shaft speed of 3600 RPM. The enclosure meets NEMA4 and IP66 ratings, and its maximum weight is 16 ounces.
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Product Description:
The HS35R2048847701 is an incremental hollow-shaft optical encoder manufactured by Danaher as part of the Dynapar Encoders series. It mounts directly on a shaft ranging from 3/8 inch to 1 inch in diameter and uses a flexible tether to prevent the housing from rotating. The encoder produces two square-wave channels and an index pulse for position and speed monitoring. When integrated with drives, PLCs, or tachometer cards, the device supplies precise feedback for closed-loop control of conveyors, pumps, and servo axes without relying on contact-based sensors. Its compact, sealed design is suitable for general industrial automation in areas exposed to moisture and airborne contaminants.
The encoder provides a resolution of 2048 PPR, producing 2,048 pulses per revolution for accurate feedback. Its hollow shaft can rotate safely at speeds up to 3600 rpm, permitting direct installation on moderate-speed spindles. The housing has a NEMA 4/IP66 rating, protecting internal components against dust, water jets, and washdown conditions. Internal optics track signal transitions at frequencies of at least 100 kHz, supporting full-resolution operation at the maximum rated speed while providing additional capacity for overspeed monitoring. The bearing assembly tolerates axial loads of 30 lb and radial loads of 40 lb. These load capacities help protect the code wheel when the encoder is installed near couplings, belts, or other rotating components.
During startup, the bearings produce no more than 5.0 oz-in of torque, limiting the initial load placed on the connected shaft. Once the encoder is running, bearing drag decreases to 4.5 oz-in, reducing resistance during continuous operation. Channel A and Channel B maintain quadrature spacing of 90° ± 22.5° electrical, while signal symmetry remains within 180° ± 18° to preserve balanced duty cycles. The electronics generate square waves with rise and fall times of less than 1 µs at a 1,000 pF load, helping maintain clear signal edges through shielded cables. The sealed encoder weighs less than 16 oz, allowing installation on shafts and mounting structures with limited load capacity.
