High-speed, High-accuracy CCD Laser Displacement SensorLK-G3000 series


Sensor Head, Wide Type, Laser Class 2


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Reference distance

500 mm (Diffuse reflection),497.5 mm (Specular reflection)

Measuring range

-250 to +500 mm (Diffuse reflection),-249 to +498 mm (Specular reflection)

Light source


Red semiconductor laser


655 nm (visible light)

Laser Class

Class II (FDA (CDRH) 21CFR Part 1040.10), Class 2 (IEC 60825-1)

Control output

0.95 mW maximum

Spot diameter (at standard distance)

Approx. 300 x 9500 μm


±0.05% of F.S. (±250 µm)*1*2 -250 to +250 mm
high-accuracy range ±0.02% of F.S. (±100 µm)
-250 to -50 mm
long range ±0.1% of F.S. (±500 µm)
-250 to +500 mm (F.S. = ±250 mm)*3


2 μm*4

Sampling cycle

20/50/100/200/500/1000 μs (Selectable from 6 levels)

LED display

Near the centre of the measurement: Green lights
Within the measurement area: Orange lights
Outside the measurement area: Orange flashing

Temperature characteristics

0.01% of F.S./˚C (F.S.= ±250 mm)

Environmental resistance

Enclosure rating

IP67 (IEC60529)

Operating ambient temperature

0 to +50°C, No condensation

Operating ambient humidity

35 to 85% RH (No condensation)

Operating ambientluminance

Incandescent lamp or fluorescent lamp: 5000 lux max.


10 to 55 Hz, double amplitude 1.5 mm; two hours in each direction of X, Y, and Z


Aluminium die-cast


Approx 380 g (including the cable)

*1 All are calculated at F.S. = (250 mm±).
*2 "High accuracy range" and "long range" refer to the linearity when those ranges are used.
*3 This value was taken when measuring a KEYENCE standard target (ceramic) in standard mode.
*4 These values were taken when measuring a KEYENCE standard target (SUS) at a reference distance and with the number of averaging measurements set to 4,096

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