Mechanical Encoder VLT-80 | Contactless Performance

VLT-80

The Netzer VLT-80 absolute rotary encoder delivers up to 23-bit resolution with 0.006 Degree accuracy, housed in an ultra-thin (<10 mm) and lightweight (<34g) design. Built with advanced capacitive sensing technology, it offers contactless, high-reliability performance without mechanical wear - perfect for aerospace, robotics, and precision automation applications.

Designed for seamless system integration, the VLT-80 features a hollow, low-inertia structure, optimizing motion system efficiency and responsiveness. Searching for cutting-edge rotary feedback in a compact package? The VLT-80 sets a new benchmark in precision engineering.

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Features

Hollow shaft with wide inner diameter for flexible mounting
Industry-leading precision under 0.006 degrees
Low power consumption, optimizing system efficiency
Contactless operation ensures wear-free performance
Ultra-lightweight design minimizes system inertia
Long-lasting design with high mean time between failures

Unique Values

Contact less
Low Profile
High precision

OD

80 mm
ID

35 mm
Height

6.6 mm
Weight

21 gr
Resolution

17-23 bit
Accuracy

±0.006°˚

Technical Data

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General

Angular resolution 17-23 bit
Nominal position accuracy ±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
Built 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 9,625 gr · mm²
Total weight 21 gr
Outer Ø / Inner Ø / Height 80 / 35 / 6.6 mm
Material (stator / rotor) FR4
Nominal air gap (stator, rotor) 0.6 mm

Electrical

Supply voltage 5V ± 5%
Current consumption ~90 mA
Interconnection Cable (standard 250mm)
Communication SSi / BiSS-C
Serial output Differential RS-422
Clock frequency 0.1-5.0 MHz
Position update rate 35 kHz (Optional - up to 375 kHz)

Environmental

EMC IEC 6100-6-2, IEC 6100-6-4
Operating temperature -55°C to +125°C
Storage temperature -55°C to +125°C
Relative humidity 98% Non condensing
Shock endurance / functional 100g 6msec saw-tooth per IEC 60068-2-27:2009 40g 11msec saw-tooth per MIL-810G
Vibration functional 7.7grms @ 20 to 2000 Hz per MIL-810G Category 24
Protection IP 40

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OD
- 59.7 mm (ID - 25 mm)
- 80 mm (ID - 35 mm)
- 100 mm (ID - 48 mm)
- 140 mm (ID - 90 mm)
- 170 mm (ID - 110 mm)
- 247.7 mm (ID - 171 mm)
Communication
- BiSS
- SSi
Resolution
- 17 bit
- 18 bit
- 19 bit
- 20 bit
- 21 bit
- 22 bit
- 23 bit
BIT
- Disabled
- Enabled
Shaft-turn Counter
- 2,048
- 4,096
- 8,192
- 16,384
- 32,768
- None
Cable Type
- Jacket and shielded cable
- Shielded cable
- Wires only
- ESA Space Cable
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
Rotor Type
- Hollow Shaft Encoder
- End Shaft - Single Screw VL25
- Shaft with Insert
Coating
- Standard Conformal
- Parylene

Part Number:

VLT

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Description
Complete test kit includes a converter and cable, rotating jig, and encoder with a cable and D-type connector.