Angle encoders with graduation on glass disk

Field of application: High-resolution rotary axes with high reproducibility 
- Very high number of signal periods
- Small mounting space
- Small interpolation error and low signal noise

Version and mountingSystem-
accuracy
Signal periods per revolutionModel
Phase-grating graduation on glass disk with hub; screwed onto front of shaft± 0,9''180000ERP 880
Phase-grating graduation on glass disk with hub; screwed onto front of shaft± 2''131072ERP 4080
Phase-grating graduation on glass disk with hub± 1''360000ERP 8080
SUPRADUR phase grating on glass± 1''2500ERO 2000
METALLUR graduation on glass disk with hub; screwed onto front of shaft± 3''/
± 2''
9000/
18000

45000 to
900000

ERO 6080

ERO 6070

Chrome graduation on glass; screwed onto front of shaft± 10''4096ERO 6180

Angle encoders with graduation on steel scale drum

Field of application: Rotary tables, Swivel heads, Accurate, highly dynamic motors
- Large diameter range
- High permissible shaft speeds
- High accuracy
- Various shapes of drum
- Various line counts per diameter
- Protective cover for increased resistance to contamination

Version and mountingSystem 
accuracy
Signal periods per revolutionModel
Steel scale drum with high accuracy, three-point centering
± 3'' to ± 1,5''
8195 to 44000ECA 4000
Scale drum with centering collar; screwed onto front of shaft± 5'' to ± 2'' 12000 to 52000
6000 to 44000
3000 to 13000
ERA 4280C

ERA 4480C

ERA 4880C
Scale drum for increased accuracy; screwed onto front of shaft± 4'' to ± 1,7''12000 to 52000ERA 4282C

Angle encoders with graduation on steel tape

Field of application: Large rotary tables, Telescopes, Special applications 
- Very large diameter range
- Full-circle and segment versions
- High variability of diameter
- High accuracy
- Inward or outward scale tape

Version and mountingSystem
accuracy
Signal periods per revolutionModel
Steel scale tape for internal mounting, full circle version; scale tape is tensioned on the outside circumference± 3,9'' to ± 1,6'' 36000 to 90000ERA 7480C
Steel scale tape for external mounting, full circle version; scale tape is tensioned on the outside circumference± 4,7'' to ± 1,9''36000 to 90000ERA 8480C