KEYENCE LB-70(W) Series - Manual (Page 15)

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Model Sensor head LB-11(W)
Controller LB-70(W)
Reference distance 1. 100 mm
Measuring range ± 40 mm
Light source Invisible infrared semiconductor laser,
Output: 3 mW (FDA), 2.5 mW (IEC), Pulse duration: 70 µ s
Wavelength 785 nm
Laser FDA(CDRH) 21CFR Part 1040.10 Class IIIb
Class IEC60825-1 Class 3R
Spot diameter 2. 1.0 x 2.0 mm
Linearity 3. 1.6% of F.S. (80 to 120 mm)
Resolution 4. 10 µ m (at 500 ms)/40 µ m (at 20 ms)/180 µ m (at 0.7 ms)
STABILITY indicator LED (RED, GREEN, YELLOW)
Output Analog Voltage 5. -4 V to +4 V (0.1 V/mm)
Impedance 100 Ω
Alarm NPN open-collector: 50 mA (40 V) max. Residual voltage: 1 V max. (N.C.)
Zero-point adjustment range 60 mm to 140 mm
Span adjustment range 0.1 V/mm ± 30%
Response frequency DC to 700 Hz (at 0.7 ms)(-3dB)/DC to 18 Hz (at 20 ms) (-3dB)/
DC to 0.6 Hz (at 500 ms) (-3 dB)
Sensitivity WHITE, BLACK, and AUTO (switch-selectable)
Temperature fluctuation 3. Sensor head 0.02% of F.S./ ° C
Controller 0.04% of F.S./ ° C
Laser control input NPN open-collector or non-voltage contact
Ambient light 6. 4,000 lux. max.
Ambient temperature 0 to +50 ° C (32 to 122 ° F), No condensation
Relative humidity 35 to 85%, No condensation
Power supply 12 to 24 VDC ± 10% Ripple (p-p): 10% max.
Power consumption 120 mA max.
Housing Sensor head Die-cast zinc-based alloy
Controller Polycarbonate
Weight (including cable) Sensor head Approx. 200 g
Controller Approx. 200 g
SPECIFICATIONS: LB-70(W)
1 . Distance from the surface of the laser-
emitting portion of the sensor head.
2. The beam spot is visible when the object
(white paper) is placed at a distance of
100 mm from the laser-emitting portion
of the sensor head.
3. F.S. stands for a measuring range of 80
mm.
4. The value when the object (white paper)
is measured distance of 100 mm from
the laser-emitting portion of the sensor
head.
5. The range can be expanded to “-5 V to
+5 V” by using the 0-ADJ and SPAN
adjuster trimmers. The alarm output is
approx. 7 V.
6. Incandescent lamp or fluorescent lamp