Product Model

WL8-N2231

Manufacturer

sick

Key Features

1High-Speed Object Detection: Detect objects moving at high speeds with the WL8-N2231's autocollimation technology.
2Adjustable Sensitivity: Fine-tune sensitivity using a 270° potentiometer for precise object detection.
3Compact Design: Miniature housing (11mm x 31mm x 20mm) with M3 threaded mounting holes for easy installation.
4Reliable Performance: Average service life of 100,000 hours at +25°C, ensuring long-term reliability.
5Versatile Connectivity: Compatible with 10-30V DC supply voltage and features an M8 4-pin connector for easy integration.

Detailed engineering parameters based on manufacturer documentation

Parameter	Value	Parameter	Value
Functional principle	Photoelectric retro-reflective sensor	Functional principle detail	Without reflector minimum distance (autocollimation/coaxial optics)
Dimensions (W x H x D)	11 mm x 31 mm x 20 mm	Housing design (light emission)	Rectangular
Sensing range max.	0 m ... 4 m	Sensing range	0 ... 3 m
Type of light	Visible red light	Light source	LED
Light spot size (distance)	Ø 30 mm (1 m)	Wave length	650 nm
Adjustment	Potentiometer, 270°	Special applications	Detection of objects moving at high speeds
Supply voltage UB	10 V DC ... 30 V DC	Ripple	± 10 %
Current consumption	30 mA	Switching output	NPN
Switching mode	Light/dark switching	Switching mode selector	Selectable via light/dark rotary switch
Signal voltage NPN HIGH/LOW	Approx. V#!#/ < 1.8 V	Output current Imax.	≤ 100 mA
Response time	≤ 0.25 ms	Switching frequency	2,000 Hz
Connection type	Male connector M8, 4-pin	Circuit protection	A6)#!#B7)#!#D8)
Weight	10 g	Polarisation filter	✔
Housing material	Plastic, ABS	Optics material	Plastic, PMMA
Enclosure rating	IP67	Items supplied	Stainless steel mounting bracket (1.4301/304) BEF-W100-A, Reflector P250
Ambient operating temperature	–25 °C ... +55 °C	Ambient temperature, storage	–40 °C ... +70 °C

Specifications may be subject to change without notice