Functional principle Photoelectric retro-reflective sensor
Functional principle detail Dual lens
Dimensions (W x H x D) 17.6 mm x 75.5 mm x 33.5 mm
Housing design (light emission) Rectangular
Sensing range max. 0.15 m … 6 m 1)
Sensing range 0.15 m … 4 m 1)
Focus Approx. 2°
Type of light Visible red light
Light source LED 2)
Light spot size (distance) Ø 140 mm (4 m)
Angle of dispersion Approx. 2°
Wave length 645 nm
Adjustment None
1) Reflector PL80A.
2) Average service life: 100,000 h at TU = +25 °C.
Mechanics/electronics
Supply voltage 10 V DC … 30 V DC 1)
1) Limit values when operated in short-circuit protected network: max. 8 A.
2) May not exceed or fall below Uv
tolerances.
3) Without load.
4) Signal transit time with resistive load.
5) With light/dark ratio 1:1.
6) A = VS connections reverse-polarity protected.
7) C = interference suppression.
8) D = outputs overcurrent and short-circuit protected.
2 PHOTOELECTRIC SENSORS | SICK

Ripple < 5 Vpp
2)
Current consumption 35 mA 3)
Switching output PNP
Output function Complementary
Switching mode Light/dark switching
Output current Imax. ≤ 100 mA
Response time ≤ 2.5 ms 4)
Switching frequency 200 Hz 5)
Connection type Male connector M12, 4-pin
Circuit protection A 6)
C 7)
D 8)
Weight 40 g
Polarisation filter ✔
Housing material Plastic, ABS
Optics material Plastic, PMMA
Enclosure rating IP67
Ambient operating temperature –25 °C … +60 °C
Ambient temperature, storage –40 °C … +70 °C
UL File No. NRKH.E181493 & NRKH7.E181493Ripple < 5 Vpp
2)
Current consumption 35 mA 3)
Switching output PNP
Output function Complementary
Switching mode Light/dark switching
Output current Imax. ≤ 100 mA
Response time ≤ 2.5 ms 4)
Switching frequency 200 Hz 5)
Connection type Male connector M12, 4-pin
Circuit protection A 6)
C 7)
D 8)
Weight 40 g
Polarisation filter ✔
Housing material Plastic, ABS
Optics material Plastic, PMMA
Enclosure rating IP67
Ambient operating temperature –25 °C … +60 °C
Ambient temperature, storage –40 °C … +70 °C
UL File No. NRKH.E181493 & NRKH7.E181493

SICK WL18-2P430

SICK WL12-2P430

SICK WL12-P4381