SICK Retroreflective Photoelectric Sensor Block, 3 m Detection Range, PNP Output, IP67, WL8G-P2231

SICK WL8G-P2231 Retroreflective Photoelectric Sensor Block is designed for industrial automation requiring compact, reliable object detection up to 3 meters. It features a PNP output and robust IP67-rated plastic housing suitable for harsh operating environments.

This sensor operates with a visible red LED light source and supports 10V to 30V DC power supply, enabling integration with a variety of DC control systems. The 4-pin M8 connector facilitates standardized cabling and easy installation, including bracket mounting.

The sensor offers high-speed response time of 500 microseconds, making it ideal for operations demanding fast switching such as machine vision, conveyor systems, and part presence inspections. Its robust electronics include reverse-polarity protection and output short-circuit safeguards to enhance reliability.

Adjustability is provided through a sensitivity potentiometer offering a wide 270° range and a rotary selector for choosing light/dark switching modes, enabling precise detection customization. The stainless-steel bracket and fine triple reflector supplied with the unit allow immediate setup for retroreflective sensing.

Performance includes detecting transparent objects using autocollimation techniques, making it suitable for challenging targets like clear bottles and packaging films. The device emits red light at 650 nm with a spot diameter of approximately 70 mm at 2 meters and a typical sensing range of 1.7 meters using the reflector.

Operates from 10V to 30V DC supply, compatible with common DC control systems. PNP output supports direct connection to PLC inputs for efficient control. Response time of 500 microseconds enables high-speed switching and throughput.

Durable IP67 rated enclosure suitable for washdown and dusty conditions. Includes stainless-steel mounting bracket and triple reflector for immediate operation. Adjustable sensitivity and light/dark switching for flexible configurations.

Reverse-polarity and short-circuit protection for reliable function. Detects transparent objects for clear bottle and packaging film applications.

This sensor is widely used in industrial, automation, manufacturing, conveyor, and packaging applications, offering precise, fast, and reliable object detection in compact form factor. Environmental specifications support operation between - 25°C and +55°C, with storage from - 40°C up to +70°C.

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