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Laser Displacement Sensors from KEYENCE

LK / LK-2500 Series

Laser Displacement Sensor
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Specifications

Best in Class Performance with the Specifications to Prove it



Long Range Laser Displacement Sensor Head Specifications
Type Long-distance (2)
Model Sensor head LK-501/503
Controller LK-2501/2503
Measurement mode High-precision mode Long-range mode
Light source Visible red semiconductor laser
Wavelength 690 nm
Pulse duration FDA 3 to 994 µs
IEC 3 to 994 µs
FDA class Class IIIb (LK-501), Class II (LK-503)
IEC class Class 3B (LK-501), Class 2 (LK-503)
Reference distance 350 mm 13.78" 500 mm 19.69"
Measuring range ± 100 mm 3.94" ± 250 mm 9.84"
Minimum spot diameter (at reference distance) Approx. 0.7 mm
0.03"
Approx. 0.3 mm
0.01"
Resolution 10 µm 0.39 Mil 50 µm 1.95 Mil
Linearity ±0.1% of F.S. (1)
Sampling frequency 1024 µs
Power supply 24 VDC±10%
Current consumption 400 mA max.
Ambient light Incandescent or fluorescent lamp: 10,000 lux max.
Ambient temperature 0 to +50°C (32 to 122°F), No condensation
Relative humidity 35 to 85%, No condensation
Materials Sensor head: Aluminum die-cast, Controller: Polycarbonate
1. Linearity was obtained using KEYENCE's standard target (Zirconia block gauge).
2. The LK-501 and LK-503 can both be used in High-precision mode or long-range mode.

High Accuracy Laser Displacement Sensor Head Specifications
Type Compact high-accuracy High-precision Standard
Model Sensor head LK-011 NEW LK-031/036 LK-081/086
Controller LK-3101 LK-2001/2011 LK-2101/2111
Measurement mode Normal (mirror surface) -
Light source Visible red semiconductor laser
Wavelength 670 nm
Pulse duration FDA 3 to 482 µs 3 to 994 µs
IEC 3 to 482 µs 3 to 994 µs
FDA class Class II
IEC class Class 2
Reference distance 10 mm (7.0 mm) 30 mm 80 mm
Measuring range ± 1 mm (±0.9 mm) ± 5 mm ± 15 mm
Minimum spot diameter (at reference distance) Approx. 20 µm
0.78 Mil
Approx. 30 µm 1.71 Mil (LK-031)
Approx. 30 × 850 µm
1.17 ×33.2 Mil (LK-036)
Approx. 70 µm 2.73 Mil (LK-081)
Approx. 70 × 1100 µm
2.73 × 42.9 Mil (LK-086)
Resolution 0.1 µm 0.004 Mil (1) 1 µm 0.04 Mil (1) 3 µm 0.12 Mil (1)
Linearity ±0.25% of F.S. (2) ± 0.1% of F.S (2)
Sampling frequency 128 µs 512 µs 1024 µs
Power supply 24 VDC±10%
Current consumption 400 mA max.
Ambient light Incandescent or fluorescent lamp: 10,000 lux max.
Ambient temperature Sensor head: Aluminum die-cast, Controller: Polycarbonate
Relative humidity 35 to 85%, No condensation
Materials Sensor head: Aluminum die-cast, Controller: Polycarbonate
1. Resolution was obtained using KEYENCE's analog sensor controller (RD-50) with the number of averaging measurements set to 64.Note: The ripple of the analog 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. Linearity was obtained using KEYENCE's standard target (Zirconia block gauge).

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