Sensor Head, Small Spot, Laser Class 2
Keyence LK-502
CCD Laser Displacement Sensor LK series
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Specification
| Model | LK-502 | |
| Type | Sensor head Long-distance *1 Sensor head | |
| Measurement mode | High-precision mode,Long-range mode | |
| Reference distance | 350 mm (High-precision mode),500 mm (Long-range mode) | |
| Measuring range | ±100 mm (High-precision mode),±250 mm (Long-range mode) | |
| Light source | Type | Red semiconductor laser |
| Wavelength | 690 nm (visible light), Class 2 | |
| Output | 0.95 mW maximum | |
| Spot diameter (at standard distance) | Approx. 0.7 mm (high-precision mode), approx. 0.3 mm (long mode) | |
| Linearity | ±0.1% of F.S. | |
| Repeatability | 10 µm*2 (High-precision mode), 50 µm*2 (Long-range mode) | |
| Analogue output | Output voltage | ±10 V (10 µm/mV)*3 (High-precision mode), ±5 V (50 µm/mV)*3 (Long-range mode) |
| Impedance | 100 ? | |
| Output current | 4 to 20 mA (350 ? maximum)*4 | |
| Alarm output | NPN: 100 mA max. (40 V max.) (N.C.), Residual voltage: 1 V max. | |
| Sampling cycle | 1,024 µs | |
| Other functions | Auto-zero, analog output holding when an alarm occurs, gain switching, response switching, span and shift adjustment | |
| Temperature characteristics | 0.02% of F.S./°C | |
| Rating | Power voltage | 24 VDC ±10 %, Ripple (P-P) 10 % or less |
| Maximum current consumption | 400 mA max. | |
| Environmental resistance | Enclosure rating | IP67 |
| Ambient light | Incandescent or fl uorescent lamp: 10,000 lux max. | |
| Ambient temperature | 0 to +50 °C (No condensation) | |
| 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. 700 g (including cable) | |
| *1 The LK-503 can both be used in High-precision mode or Long-range mode. *2 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 co mmon mode noise when observed with an oscilloscope or a high-speed A/D conversion board. *3 When measurement is impossible, 12 V (31.2 mA) is output. *4 The ±5 V analog voltage output range (the ±10 V range on the LK-010) becomes the 4 to 20 mA analog current output. |
