LK series

High-speed, High-accuracy CCD Laser Displacement Sensor

Model	Sensor head		LK-011	LK-031	LK-036	LK-081	LK-086	LK-503
	Controller		LK-3101	LK-2001	LK-2011	LK-2101	LK-2111	LK-2503
Type			Compact high-accuracy Sensor head	High-precision Sensor head		Standard Sensor head		Long-distance ^*4 Sensor head
Measurement mode			Normal,mirror surface	—				High-precision mode, Long-range mode
Reference distance			10 mm0.39"(Normal),7.0 mm0.28"(mirror surface)	30 mm 1.18"		80 mm 3.15"		350 mm 13.78"(High-precision mode), 500 mm 19.69"(Long-range mode)
Measuring range			±1 mm±0.04"(Normal),±0.9 mm±0.04"(mirror surface)	±5 mm ±0.20"		±15 mm ±0.59"		±100 mm ±3.94"(High-precision mode), ±250 mm ±9.84"(Long-range mode)
Light source	Type		Visible red semiconductor laser
	Wavelength		670 nm					690 nm
	Laser Class	FDA (CDRH) 21CFR Part 1040.10	Class II Laser Product
		IEC 60825-1	Class 2 Laser Product
	Output		0.95 mW
Spot diameter (at reference distance)			Approx. 20 μm 0.79 Mil	Approx. 30 μm 1.18 Mil	Approx. 30 x 850 μm 1.18 x 33.46 Mil	Approx. 70 μm 2.76 Mil	Approx. 70 x 1100 μm 2.76 x 43.3 Mil	Approx. 0.7 mm 0.03"(High-precision mode), Approx. 0.3 mm 0.01"(Long-range mode)
Linearity			±0.25% of F.S. ^*1	±0.1% of F.S. ^*1
Resolution			0.1 μm ^*2 0.004 Mil	1 μm ^*2 0.039 Mil		3 μm ^*2 0.12 Mil		10 μm ^2 0.39 Mil(High-precision mode), 50 μm ^2 1.97 Mil(Long-range mode)
Analog output	Voltage output		±10 V (±9 V) (0.1 μm 0.004 Mil/mV) ^*3	±5 V (1 μm 0.039 Mil/mV) ^*3		±5 V (3 μm 0.12 Mil/mV) ^*3		±10 V(10 μm 0.39 Mil/mV) ^3(High-precision mode), ±5 V(50 μm 1.97 Mil/mV) ^3(Long-range mode)
	Impedance		100 Ω
	Current output		4 to 20 mA (Applicable load: 350 Ωmax.)
Alarm output			NPN: 100 mA max. (40 V max.) (N.C.), Residual voltage: 1 V max.
Sampling cycle			128/256/512/2,048 μs selectable	512 μs		1024 μs
Other functions			AUTO ZERO, Response selection, Shift/Span adjustment, Holding output in alarm condition
Power supply			24 VDC ±10%, Ripple: 10% (P to P) or less
Current consumption			400 mA max.
Temperature fluctuation	Sensor head		0.04% of F.S./°C	0.01% of F.S./°C				0.02% of F.S./°C
	Controller		0.005% of F.S./°C	0.01% of F.S./°C
Enclosure rating			IP64	IP67
Ambient light			Incandescent or fl uorescent lamp: 10000 lux max.
Ambient temperature			0 to 50°C (32 to 122°F)
Relative humidity			35 to 85%, No condensation
Housing			Aluminum die-cast
Weight (including cable)	Sensor head		Approx. 80 g	Approx. 260 g		Approx. 385 g		Approx. 700 g
	Controller		Approx. 515 g
^1 Linearity was obtained using KEYENCE’s standard target (Zirconia block gauge: LK-031/036, LK-081/086, LK-011, White ceramic block gauge: LK-503). ^2 Repeatability 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. ^3 When measurement is impossible, 12 V (31.2 mA) is output. ^4 The LK-503 can both be used in High-precision mode or Long-range mode.