DS-90

DS-90

DS-90

Product catalog summary
Overview: The DS-90 is a rotary electric encoder designed for harsh environments, offering high precision and reliability. It features a low profile, hollow shaft, and is free from bearings, making it highly durable and suitable for critical applications such as medical equipment and aerospace.
Mechanical Specifications: The encoder has a low profile of 10 mm, with a hollow, floating shaft. It is made from Ultem™ polymer and TRVX-50 materials, with a total weight of 55 grams. It allows for mounting eccentricity and axial tolerance of ±0.1 mm.
Electrical Specifications: Operates at a supply voltage of 5V ± 5% with a current consumption of 90 mA. It uses a shielded cable with a maximum length of 1,500 mm.
Environmental Specifications: The encoder can operate in temperatures ranging from -40°C to +85°C and can be stored between -50°C to +100°C. It has a relative humidity tolerance of 98% non-condensing and can endure shocks of 100 g for 11 ms and vibrations of 20 g from 10 to 2000 Hz.
General Performance: The encoder offers an angular resolution of 19-21 bits, with a maximum operational speed of 2000 rpm and unlimited rotation measurement range. It features adjustable rotation direction and optional built-in test capabilities.
Interface and Communication: Supports Synchronous Serial Interface (SSI) and BiSS-C Interface for digital data transmission. The encoder uses RS-422 standards for differential serial output and clock signals, with a clock frequency range of 0.1 to 5.0 MHz.
Recommendations: For installation, avoid using glues containing Cyanoacrylate; instead, use 3M Scotch-Weld™ Epoxy Adhesive EC-2216 B/A. Ensure proper packing to prevent physical damage during storage and shipment.
Optional Accessories: Demonstration kits are available for both SSI and BiSS interfaces, including mounted encoders and RS-422 to USB converters.
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Catalog excerpts

DS-90-1

Precision Position Sensors ABSOLUTE POSITION ROTARY ELECTRIC ENCODER1" HARSH ENVIRONMENT icore DATA SHEET The DS-90 is a member of the DS series of Electric Encoders™, based on Netzer Precision proprietary technology. The Electric Encoder™ offers many advantages - some unparalleled • Low profile (10 mm) • Hollow, floating shaft • No bearings or other contacting elements • High resolution and precision • High tolerance to temperature extremes, shock, moisture, EMI, RFI and Magnetic fields • Very low weight • Holistic signal generation • Analog or Digital interfaces

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DS-90-2

Precision Position Sensors ABSOLUTE POSITION ROTARY ELECTRIC ENCODER1" HARSH ENVIRONMENT icore DATA SHEET Digital SSi Interface Synchronous Serial Interface (SSI) is a point to point serial interface standard between a master (e.g. controller) and a slave (e.g. sensor) for digital data transmission.

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DS-90-3

ABSOLUTE POSITION ROTARY ELECTRIC ENCODER HARSH ENVIRONMENT Ordering Code Outer Diameter Extended Accuracy Cable: 30 AWG twisted pair (3) :2 (30 AWG 25/44 finned copper, 0.15 PFE to Ø0.6 ± 0.05 OD). Temperature rating: -60 to +150 Deg C. Braided shield: Thinned copper braided 95% min. coverage. Jacket: 0.45 silicon rubber jacket Ø3.45 ±0.2 OD Braided shield 0 250mm Flying leads (default) Gray / Blue Red / Black Green / Yellow DATA SHEET Cable Information 30 AWG single insulated wire 2 750mm Flying leads 3 1000mm Flying leads Resolution Code * SSi only BIT (Build In Test): optional [] Related documents...

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DS-90-4

ABSOLUTE POSITION ROTARY ELECTRIC ENCODER HARSH ENVIRONMENT DATA SHEET Unless Otherwise Specified UNLESS OTHERWISE SPECIFIED Dimensions are in: mm Linear tolerances Dimentions aremm mm5-30: ±0.1 mm 0.5-4.9: ±0.05 in: Surface Finish: N6 31-120: ±0.15 mm 121-400: ±0.2 mm Linear Tolerances: ±0.5 deg All Chamfer: 0.1 mm x 45° DS-90-V02 WARNING Do not use Loctite or other glues containing Cyanoacrylate. We recommend to use 3M glue - Scotch-WeldTM Epoxy Adhesive EC-2216 B/A.

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DS-90-5

Precision Position Sensors ABSOLUTE POSITION ROTARY ELECTRIC ENCODER™ HARSH ENVIRONMENT DS-90 @ core DATA SHEET FREE AREA FOR CLAMP INSTALLATION 3 PLACES EQ.SP Unless Otherwise Specified WARNING Do not use Loctite or other glues containing Cyanoacrylate. We recommend to use 3M glue - Scotch-Weld™ Epoxy Adhesive EC-2216 B/A. Critical dimensions marked with

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DS-90-6

Netzer Precision Position Sensors ABSOLUTE POSITION ROTARY ELECTRIC ENCODER1" HARSH ENVIRONMENT icore DATA SHEET Shaft - End installation (Retaining ring) Unless Otherwise Specified Critical dimensions marked with “*”

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.