KEYENCE LK-2000 Series - Manual (Page 21)

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Model
Sensor head LK-031/036 LK-081/086 LK-501/LK-503
Controller LK-2001/2011 LK-2101/2111 LK-2501/LK-2503
Measurement mode — — Long-range High-precision
Reference distance 30 mm 80 mm 500 mm 350 mm
Measuring range ±5 mm ±15 mm ±250 mm ±100 mm
Light source Visible red semiconductor laser
Maximum output 0.95mW LK-501: 15 mW, LK-503: 0.95mW
Pulse duration 3 to 482 µs 3 to 994 µs 3 to 994 µs
Wavelength 655nm 690 nm
FDA(CDRH) 21CFR Part 1040.10 Class II Class IIIb (LK-501), Class II (LK-503)
Laser
IEC/EN 60825-1 Class 2 Class 3B (LK-501), Class 2 (LK-503)
Class
DIN EN 60825-1 Class 2 Class 3B (LK-501), Class 2 (LK-503)
Spot diameter (at reference distance) Approx. 30 µm (LK-031) Approx. 70 µm (LK-081) Approx. 0.3 mm dia. Approx. 0.7 mm dia.
Approx. 30 x 850 µm (LK-036) Approx. 70 x 1100 µm (LK-086)
Linearity ±0.1% of F.S. 1.
Repeatability 1 µm 2. 3 µm 2. 50 µm 2. 10 µm 2.
Analog output
Voltage ±5 V (1 mm/V) ±5 V (3 mm/V) ±5 V (50 µm/mV) ±10 V (10 µm/mV) 3.
Impedance 100 Ω
Current 4 to 20 mA (350 Ω max.) 3. 4.
Alarm output NPN open-collector 100 mA (40 V) max. (N.C.) Residual voltage 1 V max. 3.
Sampling cycle 512 µs 1024 µs
Other functions AUTO ZERO, Alarm hold, GAIN selection, Response speed selection, Span/Shift adjustment
Power supply 24 VDC ±10% Ripple (p-p): 10 % max.
Current consumption 400 mA max.
Temperature Sensor head 0.01% of F.S./°C 0.02% of F.S./°C
fluctuation Controller 0.01% of F.S./°C
Enclosure rating IP67
Ambient light Incandescent or fluorescent lamp: 10,000 lux max. 5.
Ambient Sensor head 0 to 50 °C (32 to 122 °F), No condensation
temperature Controller 0 to 50 °C (32 to 122 °F), No condensation
Relative humidity 35 to 85%, No condensation
Vibration 10 to 55 Hz, 1.5 mm double amplitude in X, Y, and Z directions, 2 hours respectively
Material
Sensor head Aluminum die-cast
Controller Polycarbonate
Weight Sensor head Approx. 260 g Approx. 385 g Approx. 700 g
(including cable) Controller Approx. 515 g
SPECIFICATIONS
1. Linearity was obtained using KEYENCE’s standard target (white ceramic block gauge).
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 high-speed A/D conversion board.
3. When measurement is impossible, 12 V (31.2 mA) is output.
4. The analog current output is 4 to 20 mA over the measurement range with an analog voltage output of ±5 V.
5. 5,000 lux max. with LK-503/2503.