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Photoelectric linear encoder L37 is an incremental encoder that fea- tures reproducible thermal behavior and has a reversible reading head. It can have up to 3.240 mm measuring length and accuracy grades to any meter within the ML of up to ±3 μm.
Technical Data
| Mechanical Data | ||
|---|---|---|
| Measuring lengths (ML), mm | 140, 240, 340, 440, 540, 640, 740, 840, 940, 1040, 1140, 1240, 1340, 1440,1540, 1640, 1740, 1840, 2040, 2240, 2440, 2640, 2840, 3040, 3240 | |
| Accuracy grades to any metre within the ML (at 20OC): - for ML from 170 up to 2040 mm - for ML from 2040 up to 3240 mm | ±5; ±3 (optional) ±10 μm | |
| Grating period | 20 μm; 40 μm | |
| Reference marks (RI): -standard for ML < 1020 mm -standard for ML > 1140 mm -optional - distance-coded - selection by magnets | 35mm from both ends of ML 45mm from both ends of ML one RI at any location, two or more RI's separated by distanc- es of (n x 50 mm) see drawing standard - one magnet (RI) in ML middle | |
| Max. traversing speed: -when interpolation factor is 1,2,5,10 -when interpolation factor is 25 -when interpolation factor is 50 | 1 m/s (shortly 2 m/s) 0.5 m/s 0.4 m/s | |
| Required moving force with sealing lips | <5 N | |
| Protection (IEC 529): -without compressed air -with compressed air (optional) | IP54 IP64 | |
| Weight | 0.4 kg + 2.8 kg/m | |
| Operating temperature | 0 ... +50°C | |
| Storage temperature | -20 ... +70°C | |
| Permissible vibration (40 to 2000 Hz) | ≤ 150 m/s² | |
| Permissible shock (11 ms) | ≤ 300 m/s² |