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 23-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

23-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

OD

90 mm
ID

50 mm
Height

10 mm
Weight

55 gr
Resolution

19-23 bit
Accuracy

±0.006˚

Technical Data

Technical Drawing

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General

Angular resolution 19-23 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 with optional shaft turn counter
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

Mini Encoder using absolute rotary encoder technology

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OD
- 16 mm (ID - 4 mm)
- 25 mm (ID - 6 mm)
- 37 mm (ID - 10 mm)
- 40 mm (ID - 10 mm)
- 58 mm (ID - 20 mm)
- 70 mm (ID - 30 mm)
- 90 mm (ID - 50 mm)
- 130 mm (ID - 90 mm)
Communication
- BiSS
- SSi
Resolution
- 16 bit
- 17 bit
- 18 bit
- 19 bit
- 20 bit
- 21 bit
- 22 bit
- 23 bit
BIT
- Disabled
- Enabled
Cable Type
- Jacket and shielded cable
- Shielded cable
- Wires only
Cable Length
- 250 mm Flying leads - 30AWG
- 500 mm Flying leads - 30AWG
- 750 mm Flying leads - 30AWG
- 1000 mm Flying leads - 30AWG
- 250 mm Flying leads - 28AWG
- 500 mm Flying leads - 28AWG
- 750 mm Flying leads - 28AWG
- 1000 mm Flying leads - 28AWG
Extended Accuracy
- Enabled
- Disabled