| Specifications | LS 487 | LS 477 |
| Measuring standardCoefficient of linear expansion | Glass scale with DIADUR grating, grating period 20 µm?therm 8 x 10–6 K–1 (mounting type I/II); with mounting spar: ?therm 9 x 10–6 K–1 (mounting type III) |
| Accuracy grade* | ±5 µm; ±3 µm |
| Measuring length ML* in mm | Mounting spar* up to ML 1240 optional, necessary as of ML 1340 70 120 170 220 270 320 370 420 470 520 570 620 670 720770 820 920 1020 1140 1240 1340 1440 1540 1640 1740 1840 2040 |
Reference marks* LS 4x7
LS 4x7 C | • Selectable with magnets every 50 mm• One reference mark at midpoint of measuring length• Two reference marks, each 35 mm (for ML ? 1 020 mm) or 45 mm (for ML ? 1 140 mm) from the beginning and end of the measuring lengthDistance-coded |
| Interface | 1 VPP | ? TTL |
| Integrated interpolation*Signal period | –20 µm | 5-fold– | 10-fold– | 20-fold– |
| Diagnostics interface | Analog | – |
| Cutoff frequency –3 dB | ? 160 kHz | – | – | – |
| Scanning frequency*Edge separation a | – | 100 kHz? 0.5 µs | 50 kHz? 1 µs | 100 kHz? 0.25 µs | 50 kHz? 0.5 µs | 25 kHz? 1 µs | 50 kHz? 0.25 µs | 25 kHz? 0.5 µs |
| Measuring step | Depends on interpolation | 1 µm1) | 0.5 µm1) | 0.25 µm1) |
| Electrical connection | Separate adapter cable (1 m/3 m/6 m/9 m) connectible to mounting block |
| Cable length2) | ? 150 m | ? 100 m |
Voltage supply
without load | DC 5 V ±0.25 V/< 120 mA | DC 5 V ±0.25 V/< 140 mA |
| Traversing speed | ? 120 m/min | ? 120 m/min | ? 60 m/min | ? 120 m/min | ? 60 m/min | ? 30 m/min | ? 60 m/min | ? 30 m/min |
| Required moving force | ? 5 N |
| Vibration 55 Hz to 2000 HzShock 11 msAcceleration | Without mounting spar: ? 100 m/s2 (EN 60 068-2-6)
With mounting spar, cable outlet at right: ? 200 m/s2, links: 100 m/s2 (EN 60 068-2-6)? 300 m/s2 (EN 60 068-2-27)? 100 m/s2 in measuring direction |
| Operating temperature | 0 °C to 50 °C |
| Protection EN 60 529 | IP53 when installed according to mounting instructions and information;
IP64 with compressed air from DA 400 |
| Mass | 0.4 kg + 0.5 kg/m measuring length |
| * Please select when ordering1) After 4-fold evaluation in the subsequent electronics2) With HEIDENHAIN cable |
