CCD Laser Displacement SensorLK series


Sensor Head, Small Spot

[Discontinued model]

This model has been discontinued.

Recommended Replaceable Products
To contact us:


Select Language




Sensor head Compact high-accuracy Sensor head

Measurement mode

Normal,mirror surface

Reference distance

10 mm (Normal),7.0 mm (mirror surface)

Measuring range

±1 mm (Normal),±0.9 mm (mirror surface)

Light source


Red semiconductor laser


670nm (Visible light), Class 2 laser product (JIS C6802)


0.95 mW maximum

Spot diameter (at standard distance)

Approx. 20 μm


±0.25% of F.S.


0.1 μm *1

Analogue output

Output voltage

±10 V (±9 V)
(0.1 μm/mV) *2


100 Ω

Output current

4 to 20 mA (350 Ω maximum)*3*4

Alarm output

NPN: 100 mA max. (40 V max.) (N.C.), Residual voltage: 1 V max.

Sampling cycle

128, 256, 512, 2,048 μs (selectable)

Other functions

Auto-zero, analog output holding when an alarm occurs, gain switching, response switching, span and shift adjustment of mirror surface measurement mode, changing the sampling cycle

Temperature characteristics

0.04% of F.S./°C


Power voltage

24 VDC ±10%, Ripple: 10% (P to P) or less

Maximum current consumption

400 mA max.

Environmental resistance

Enclosure rating


Operating ambientluminance

Incandescent or fl uorescent lamp: 10000 lux max.

Operating ambient temperature

0 to +50°C (No condensation)

Operating ambient humidity

35 to 85% RH (No condensation)


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


Aluminium die-cast


Approx 85 g (including cable)

*1 Repeatability was obtained using KEYENCE's analogue sensor controller (RD-50) with the number of averaging measurements set to 64.
Note: The ripple of the analogue output may be 1 mV or more due to common mode noise when observed with an oscilloscope or a high-speed A/D conversion board.
*2 When measurement is impossible, 12 V (31.2 mA) is output.
*3 LK-010: When measurements cannot be performed, this is 12 V (21 mA). LK-035/030, LK-085/080, and LK-500: When measurements cannot be performed, this is 12 V (31.2 mA).
*4 The ±5 V analog voltage output range (the ±

For visitors who viewed this page

    Measurement Library

    Latest / Most Downloaded

      • Trade Shows and Exhibitions
      • eNews Subscribe

      Measurement Sensors