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Photoelectric linear encoder L18 is an incremental linear displacement measuring device that can have up to 2.040 mm measuring length, grating period of ±20 μm or ±40 μm and accuracy that can reach up to 3 μm.
Technical data
| MECHANICAL DATA | |
|---|---|
| Measuring lengths (ML), mm | 70, 120, 170, 220, 270, 320, 370, 420, 520, 620, 720, 820, 920, 1020, 1140, 1240 (the length from 70 up to 2040 mm with mounting spar on request) |
| Accuracy grades to any metre within the ML (at 20°C) | ±10; ±5; ±3 μm (optional) |
| Grating period | 20 μm; 40 μm (optional) |
| Reference marks (RI): -standard for ML ≤ 1020 mm -standard for ML > 1140 mm -optional | 35mm from both ends of ML 45mm from both ends of ML one RI at any location, or two or more RI's separated by distances of n x 50 mm or distance-coded |
| Max. traversing speed: -when interpolation factor is 1,2,5,10 -when interpolation factor is 25 -when interpolation factor is 50 | 1 m/s 0.5 m/s 0.4 m/s |
| Required moving force with sealing lips | <3 N |
| Protection (IEC 529) -without compressed air -with compressed air (optional) | IP53 IP64 |
| Weight | 0.4 kg + 0.8 kg/m |
| Operating temperature | 0 ... +50°C |
| Storage temperature | -20 ... +70°C |
| Permissible vibration (40 to 2000 Hz) | ≤ 30 m/s² |
| Permissible shock (11 ms) | ≤ 100 m/s² |