GVS 808
Absolute linear encoder for CNC machine tools
- Absolute optical encoder with glass measuring support.
- Serial interface SSI – BiSS C (unidirectional), with or without 1 Vpp analog signal, Siemens DRIVE-CLiQ, FANUC αi and MITSUBISHI High Speed.
- Resolutions up to 1 nm.
- Accuracy grade ± 5 μm in the standard version and ± 3 μm in the high accuracy version (± 2 μm for measuring lengths up to 640 mm).
- Option: Innovative Fixed Expansion Point (FEP), in the middle, positionable on the right (RT) or on the left (LT), for a linear expansion consistent with the type of application.
- Double pair of linear sealing lips for a very high protection of the grating.
- Metrological certificate provided with each scale.
- Linear thermal expansion coefficient λ = 8 x 10-6 °C-1.
- Direct reading of the absolute measure.
- Connector on the transducer (IP 67), easily disconnectable in case of need.
- Protected against inversion of power supply polarity and short circuits on output ports.
- Rugged and heavy profile of considerable section, made of anodized aluminum.
- Adjustable cable output, through double connector.
- Pressurization from both sides of the scale or from the transducer.
Request information
Discover the instrument's details
1
Cutting-edge optical/electronic circuit to withstand even high-pressure direct liquid jets.4
Compressed air directed inside the double sealing lips to prevent liquid intrusion even in case of obstructed
or faulty filtering systems.6
Moulded M12 connector (IP 67) with golden pins. Other models on request.8
High-accuracy optical glass grating for absolute measurements. 13
1 nm Max. resolution
± 2 μm Max. accuracy grade
2± 2 μm Max. accuracy grade
Absolute serial interface with all the
most used CNC protocols available.
3most used CNC protocols available.
Cutting-edge optical/electronic circuit to withstand even high-pressure direct liquid jets. Option: innovative FEP system. Flexibility to select the Fixed Expansion Point (FEP) position based on the application.
5
Compressed air directed inside the double sealing lips to prevent liquid intrusion even in case of obstructed
or faulty filtering systems.PUR cable, suitable for
continuous movements.
7continuous movements.
Moulded M12 connector (IP 67) with golden pins. Other models on request.Connector (IP 67) on the transducer,
easily disconnectable in case of need.
Adjustable cable output direction.
9easily disconnectable in case of need.
Adjustable cable output direction.
Circuit protection with gasket (IP 67).
10 Brackets for the correct positioning
and alignment of the transducer.
11and alignment of the transducer.
Measuring length up to 3240 mm.
12
High-accuracy optical glass grating for absolute measurements. Pressurization from both sides of the scale
or from the transducer. Integrated airflow regulation system.
or from the transducer. Integrated airflow regulation system.
