WL24-2B333

What type of sensor is this?

It is a compact retro-reflective photoelectric sensor designed to detect objects by sending visible red LED light to a reflector and monitoring the reflected beam.

How does the retro-reflective sensing principle work?

The sensor emits a beam towards a reflector. When an object interrupts the reflected light path, the sensor changes its switching output state, allowing machinery or control equipment to detect presence, absence or position.

What sensing range can it achieve?

When used with a PL80A reflector, the typical sensing range is 0 m to 15 m, with a maximum stated range of 0 m to 22 m under suitable conditions.

What voltage does it operate on?

The sensor operates from a 10 V DC to 30 V DC supply, making it suitable for common industrial DC control systems.

Does it provide PNP or NPN output?

It provides selectable NPN or PNP switching output, allowing the unit to be configured for different control input requirements.

Can the switching mode be changed?

Yes. The switching mode is selectable between light-on and dark-on operation, so the output behaviour can be matched to the application.

What connection type does it use?

The WL24-2B333 uses a 3-pin cubic connector. The connection diagram identifies brown as L+, blue as M, and black as the switching output.

Is it suitable for harsh industrial environments?

The sensor has an IP67 enclosure rating, a zinc die-cast metal housing and an operating temperature range of -40 °C to +60 °C, making it suitable for many demanding industrial settings.

What is the response time and switching frequency?

The response time is 500 microseconds or less, and the switching frequency is 1,000 Hz, which makes it suitable for fast object detection tasks.

What reflector is recommended for standard operation?

The PL80A reflector is referenced for the stated sensing range and is listed as a recommended reflector for this sensor.

What are the main mounting dimensions?

The sensor body measures 27 mm wide, 87.5 mm high and 65 mm deep. It includes M5 threaded mounting points, including a 6 mm deep mounting thread and a through-hole arrangement.

What materials are used in the construction?

The housing is made from zinc die-cast metal, while the optical components use PMMA plastic. This combination provides a robust body with suitable optical performance.

Does it include a polarisation filter?

Yes. A polarisation filter is included, helping the sensor distinguish reflected light from the intended reflector and improving reliability in retro-reflective applications.

What adjustment options are available?

The unit includes a potentiometer for sensitivity adjustment, along with selectors for light/dark operation and NPN/PNP output configuration.

What accessories are commonly used with it?

Common associated accessories include the PL80A reflector, BEF-WG-W24 mounting bracket, BEF-WN-REFX universal reflector bracket and DOS-0303-W angled female connector.