Mini Encoder : High-Precision Encapsulated Rotary Encoder

DS-90

The Netzer DS-90 Absolute Rotary Encoder is engineered for high-performance applications that require precision, durability, and reliability. Featuring 21-bit resolution and an accuracy of 0.006 degrees, this contactless encoder delivers exceptional long-term stability for aerospace, robotics, and industrial automation. Its hollow, low-mass design optimizes integration while enhancing dynamic response, providing best-in-class rotary feedback for high-end motion control.

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Features

21-bit resolution for high-precision applications
Robust EMI and RFI shielding for interference-free operation
Contactless sensing ensures zero mechanical wear
Hollow shaft architecture for optimized integration
Extended durability with temperature-stable design

Unique Values

High precision
Durability
Low Profile
Repeatability

Accuracy

±0.006˚
Resolution

19-21 bit
OD

90 mm
ID

50 mm
Height

10 mm
Weight

55 gr

Technical Data

Technical Drawing

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General

Angular resolution 19-21 bit
Nominal position accuracy ±0.010°
Nominal position extended accuracy (EA) ±0.006°
Repeatability 0.7 mdeg / 2.5 Arcsec
Maximum operational speed 2,000 rpm
Measurement range Single turn absolute position
Build In test BIT Optional
Rotation direction Adjustable CW/CCW (Default same direction from bottom side of the encoder)

Mechanical

Allowable mounting eccentricity ±0.1 mm
Allowable axial mounting tolerance ±0.1 mm
Rotor inertia 4,242 gr · mm²
Total weight 55 gr
Outer Ø /Inner Ø/ Height 90 / 50 / 10 mm
Material (stator / rotor) Ultem™ polymer / TRVX-50

Electrical

Supply voltage
Current consumption
Interconnection
Communication
Output code
Serial output
Clock frequency
Position update rate

Environmental

EMC IEC 6100-6-2, IEC 6100-6-4
Operating temperature range -40°C to +85°C
Storage temperature -50°C to +85°C
Relative humidity 98% Non condensing
Shock endurance / functional 100 g for 11 ms
Vibration functional 20 g 10 - 2000 Hz (per MIL-STD-810G)
Protection IP 40

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OD
Output
Resolution
Bit
Cable Options
Interconnection
Rotor Type
Custom

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Meet our users

DS-90 | ABSOLUTE ROTARY ENCODER DS | Encapsulated | Shaft Encoder

DS-90

Features