L35

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Photoelectric Linear Encoder

Photoelectric linear encoder L35 is an incremental linear displacement measuring device that has up to 3.240 mm measuring length, up to ±3 μm accuracy grades to any meter within the ML depending on mea- suring length demanded. L35 series is more vibration resistant than L18 series of encoders.

 

Technical data

Mechanical Data 
Measuring lengths (ML), mm170; 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 intermediate lengths on request)
Accuracy grades to any metre within the ML (at 20°C):
- for ML from 170 up to 2040 mm
- for ML from 2040 up to 3240 mm


±5; ±3
±10 μm
Grating period20 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 distances 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
Weight0.4 kg + 2.8 kg/m
Operating temperature0 ... +50°C
Storage temperature-20 ... +70°C
Permissible vibration (40 to 2000 Hz)≤ 150 m/s²
Permissible shock (11 ms)≤ 300 m/s²
For other data, please see the attached data sheet