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

Sensor Head Spot Type



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Reference distance

8 mm

Measuring range

±0.8 mm

Light source


Red semiconductor laser


655nm (Visible light), Class 1 laser product (JIS C6802)


0.3 mW

Spot diameter (at reference distance)

Approx. ø20 µm


±0.05% of F.S. (F.S.= ±0.8 mm)*1


0.02 µm (0.01 µm)*2

Sampling frequency

20/50/100/200/500/1,000 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

0.02% of F.S./°C (F.S. = ±0.8 mm)

Environmental resistance

Enclosure rating


Ambient light

Incandescent lamp or Fluorescent lamp: 10,000 lux max.

Ambient temperature

+10 to +40 °C

Relative humidity

35 to 85 % RH (No condensation)

Vibration resistance

10 to 55 Hz, Double amplitude 0.75 mm, 2 hours in each of the X, Y, and Z directions




Approx. 245 g (including the cable)

*1 This value was taken when measuring a KEYENCE standard target (ceramic) in standard mode.
*2 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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