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L18B

Incremental linear encoder

Optical linear encoder L18B is able to have the measuring length of up to 3.240 mm, maximum accuracy of ±5 µm to any meter within the ML, and grating periods of ±20 µm, ±40 µm.

Mechanical data

Measuring lengths (ML), mm 70; 120; 170; 220; 270; 320; 370; 420; 470; 520; 620; 720; 820; 920; 1020; 1140; 1240; 1340; 1440; 1540; 1640; 1740; 1840; 1940; 2040; 2140; 2240; 2340; 2440; 2540; 2640; 2740; 2840; 2940; 3040; 3140; 3240
(other intermenate lenghts on request)
Accuracy grades to any meter within the ML (at 20°C) for ML 70 to 2040: ±10; ±5 μm (optional)
for ML 2040 to 3240: ±10 μm
Grating period 20 μm; 40 μm (optional)
Reference marks (RI) standard for ML ≤ 1020 mm: 35 mm from both ends of ML
standard for ML ≥ 1140 mm: 45 mm from both ends of ML
optional: 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: 1 m/s
when interpolation factor is 25: 0.5 m/s
when interpolation factor is 50: 0.4 m/s
Required moving force with sealing lips < 3 N
Protection (IEC 529) with compressed air: IP64
Weight 0.4 kg + 1 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

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