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

          LK-G502

          Sensor Head: Ultra Long Distance, Small spot

          SPECIFICATIONS

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          Model

          LK-G502

          Reference distance

          Diffused reflection: 500 mm, Specular reflection: 497.5 mm

          Measuring range

          Diffused reflection: -250 to +500 mm, Specular reflection: -249 to +498 mm*1*2

          Light source

          Type

          Red semiconductor laser

          Wavelength

          650 nm (visible light)

          Laser Class

          Class II (FDA CDRH 21CFR Part 1040.10), Class 2 (IEC60825-1)

          Output

          0.95 mW

          Spot diameter (at reference distance)

          Approx. ø300 µm

          Linearity

          ±0.05 % of F.S. (±250 µm)*3 -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)*4

          Repeatability

          2 µm*5

          Sampling frequency

          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)

          Ambient light

          Incandescent lamp or Fluorescent lamp: 5,000 lux max.

          Ambient temperature

          0 to +50 °C

          Relative humidity

          35 to 85 % RH (No condensation)

          Vibration resistance

          10 to 55 Hz, Double amplitude 1.5 mm, 2 hours in each of the X, Y, and Z directions

          Material

          Aluminium die-cast

          Weight

          Approx. 380 g (including the cable)

          *1 The range is obtained by measuring KEYENCE's standard target (ceramic).
          *2 When the sampling rate is 20 µs, the range becomes -230 (NEAR side) to -250 mm (NEAR side) for diffuse reflection.
          When the sampling rate is 20 µs, the range becomes -230 (NEAR side) to -249 mm (NEAR side) for specular reflection.
          When the sampling rate is 50 µs, the range becomes -125 (NEAR side) to -250 mm (NEAR side) for diffuse reflection.
          When the sampling rate is 50 µs, the range becomes -125 (NEAR side) to -249 mm (NEAR side) for specular reflection.
          *3 All are calculated at F.S. = ±250 mm.
          "High accuracy range" and "long range" refer to the linearity when those ranges are used.
          *4 The range is obtained by measuring KEYENCE's standard target (ceramic) with the Standard mode.
          *5 The range is obtained by measuring KEYENCE's standard (SUS) with 4,096 times of averaging at the reference distance.

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