Specifications – KEYENCE LK-3100 User Manual
Page 21

21
SPECIFICATIONS
1. Linearity was obtained using KEYENCE’s standard target (zirconia block gauge) with the sampling cycle set to 2048
µs.
2. Repeatability was obtained using KEYENCE’s analog sensor controller RD-50 with the sampling cycle set to 2048
µs and the number of measurements to be averaged 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 (21 mA) is output.
Model
Sensor head
LK-011
Controller
LK-3101
Measurement mode
Normal
Mirror-surface measurement
Reference distance
10 mm
7.2 mm
Measuring range
±1 mm
±0.9 mm
Light source
Red semiconductor laser
Wavelength
670 nm (visible beam)
Output
0.95mW
Spot diameter
Approx. 20
µm (at the reference distance)
Linearity
1.
±0.25% of F.S.
±0.25% of F.S.
Repeatability
2.
0.1
µm
Analog output
3.
Voltage output
±10 V (0.1 µm/mV)
±9 V (0.1 µm/mV)
Output impedance
100
Ω
Current output
4 to 20 mA (350
Ω max.)
Alarm output
NPN open-collector (N.C.), 100 mA max. (40 V max.), Residual voltage 1 V max.
Sampling cycle
128/256/512/2048
µs selectable
Other functions
AUTO ZERO, Analog output hold during alarm, GAIN selection, Response speed selection,
Mirror-surface measurement mode, Span/Shift adjustment, Sampling cycle selection
Power supply
24 VDC
±10%, Ripple (p-p): 10% max.
Current consumption
400 mA max.
Temperature fluctuation
Sensor head
0.04% of F.S. /
°C (+20 to +30°C (68 to 86°F))
Controller
0.05% of F.S. /
°C (0 to +50°C (32 to 122°F))
Enclosure rating
IP64
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
Material
Sensor head
Aluminum die-cast
Controller
Polycarbonate
Weight
Sensor head
Approx. 80 g
Controller
Approx. 515 g