Photoelectric Sensors – WL9M4G-3P2234

The WL9M4G-3P2234 is a photoelectric retro-reflective sensor from the W9 series, engineered for precision detection of objects—including transparent materials—using advanced autocollimation (coaxial optics). Housed in a slim, rectangular body with M4 mounting, this sensor is a versatile choice for compact installations in packaging, bottling, and materials handling.

It offers a sensing range up to 5 meters (3 meters typical) and emits a visible red light via a PinPoint LED, delivering a sharp and focused beam with a 45 mm light spot at 1.5 m for accurate alignment. A built-in AutoAdapt feature ensures dynamic response to changing environmental conditions, while the single teach-in button on the cable allows for quick and easy configuration.

Optimized for detecting transparent objects, the WL9M4G-3P2234 is a powerful, high-performance sensor suited for modern automation lines.

Specifications:

• Model: WL9M4G-3P2234 | W9

• Sensor Type: Photoelectric retro-reflective sensor

• Functional Principle Detail: Without reflector minimum distance (autocollimation/coaxial optics)

• Dimensions (W x H x D): 12.2 mm x 49.8 mm x 23.6 mm

• Mounting Hole: M4

• Sensing Range (typical): 0 m to 3 m

• Sensing Range (max): 0 m to 5 m

• Light Source: PinPoint LED

• Type of Light: Visible red light

• Wavelength: 650 nm

• Light Spot Size (at 1.5 m): Ø 45 mm

• Adjustment: Single teach-in button on cable

• Special Features:

  • AutoAdapt for real-time ambient compensation

  • Optimized for detecting transparent objects

• Reflector: PL80A (required for operation)

• Average LED Life: 100,000 hours at 25 °C