2-dimentional Laser Displacement SensorsLS Series


Line beam for fast, accurate measuring of height and width

  • Linearity of ±0.1% F.S.
  • Sampling period of 0.5 ms (max. speed)
  • 2-dimensional measurements at a significantly low cost
LS Series


Type Shape Measurement distance Width of view Spot size Model
NPN type PNP type
2D reflective
17 to 27 mm 0.3 × 32 mm LS-100CN LS-100CP


Type Parallel line emitting reflective type
Model NPN LS-100CN
Measurement distance 100 ±25 mm
Width of view (at measuring distance) 17 mm (at 75 mm) to 27 mm (at 125 mm)
Light source Red semiconductor laser, wavelength: 655 nm,
max. output: 1 mW
Laser class IEC/JIS Class 2
FDA Class 2*1
Spot size*2 Approx. 0.3 × 32 mm
Linearity Z axis ±0.1% of F.S.
Repeat accuracy*3 Z axis 2 μm
Resolution*4 X axis 25 μm
Sampling period Typical value: 5 ms
(when measuring the whole view in “Hi-res” mode),
max. speed: 0.5 ms
Display Dot matrix display
Indicators Power indicator (green), laser emission indicator (green)
External input Selectable from bank, trigger, hold, reset, laser OFF, and offset
Control output 3 NPN/PNP open collector outputs, max. 100 mA/30 VDC (max. residual voltage: 1.8 V)
Analog output 4 to 20 mA, out of measurement range: 24 mA
(max. load impedance: 300 Ω)
Communication I/F RS-485 half duplex (9.6 kbps to 4.0 Mbps)
Temperature drift (typical example) 0.05% of F.S./℃
Supply voltage 12 to 24 VDC (±10%, including -5% ripple)
Current consumption*5 Max. 180 mA
Environmental resistance Degree of protection IP67
Ambient temperature/humidity -10 to +40℃/35 to 85% RH (no condensation or freezing)
Storage temperature/humidity -20 to +60℃/35 to 85% RH (no condensation or freezing)
Ambient illuminance Sunlight: 10000 lx or less, high-frequency lamp: 3000 lx or less
Vibration resistance 10 to 55 Hz; double amplitude 1.5 mm;
2 hours in each of the X, Y, and Z directions
Shock resistance Approx. 50 G (500 m/s2),
3 times in each of the X, Y, and Z directions
Applicable regulations EMC directive (2004/108/EC) /
FDA regulations (21 CFR 1040.10)
Applicable standards EN 60947-5-7
Warm-up time Approx. 30 minutes
Material Main unit: Zinc die-casting,
PC/emitting and receiving parts: Glass
Weight Approx. 300 g

*1 In accordance with the FDA provisions of Laser Notice No. 50, the laser is classified as Class 2 per the IEC 60825-1 standard.
*2 Defined with center strength 1/e2 (13.5%) at the center of measurement range. There may be leak light other than the specified spot size. The sensor may be affected when there is a highly reflective object close to the detection area.
*3 With an average height measurement of a white workpiece with a center width of 5 mm, smoothing performed 8 times, moving average performed 32 times (with the default settings)
*4 With a measurement distance of 75 mm
*5 Supply voltage: 24 VDC not including the control output load current and including the analog output