Sensor Head: Ultra Long Distance, Small spot
Keyence LK-G502
High-speed, High-accuracy CCD Laser Displacement Sensor LK-G3000 series
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Specification
| 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. |
