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
OPTODUR graduation on glass± 0,9'' to ± 4''23000 to 63000ERP 1000
ERP 1000 scale drumERP 1000 scanning head
SUPRADUR phase grating on glass± 8''4096ERO 2000
ERO 2000 scale drumERO 2000 scanning head

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
ECA 4000 scale drumECA 4000 scanning head
Scale drum with centering collar; screwed onto front of shaft± 5'' to ± 2'' 12000 to 52000
6000 to 44000
3000 to 13000
ERA 4000

ERA 4000 scale drumERA 4000 scanning head

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
Ausführung und MontageGenauigkeit der TeilungSignalperioden/UTyp
Stahlmaßband für Innenmontage, Vollkreisausführung 1); Maßband wird am Umfang gespannt± 3,9'' bis ± 1,6'' 36000 bis 90000ERA 7480C
Stahlmaßband für Außenmontage, Vollkreisausführung 1); Maßband wird am Umfang gespannt± 4,7'' bis ± 1,9''36000 bis 90000ERA 8480C

1) Segmentlösungen auf Anfrage