L18

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Photoelectric Linear Encoder

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 period20 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
Weight0.4 kg + 0.8 kg/m
Operating temperature0 ... +50°C
Storage temperature-20 ... +70°C
Permissible vibration (40 to 2000 Hz)≤ 30 m/s²
Permissible shock (11 ms)≤ 100 m/s²
For other data, please see the attached data sheet