Sick Retroreflective Photoelectric Sensor, Miniature Sensor, 5 m Detection Range IO-LINK

The WLG4S-3 is a retro-reflective sensor enclosed in a slim housing that reliably detects transparent objects. Even small gaps between objects, highly transparent thin films, and vials with flow marks and severe lens defects can be reliably detected. Setting the sensor requires a single press of the teach-in pushbutton. The sensor reliably adjusts for any changes to environmental conditions such as temperature, dust or dirt. The single-lens auto collimation system “sees” through even the smallest of openings.

The Pinpoint LED's small but intense light spot enables quick and easy alignment even when using the smallest reflectors. Plus, variants with IO-Link provide continuous diagnostics data.

Continuous threshold adaption of the switching threshold compensates for environmental changes
Single-lens auto collimation optics
Simple setting either via teach-in pushbutton, cable or IO-Link
Pinpoint LED technology with a small, highly visible, well-defined light spot enables high reserve levels when using small reflectors
Flexible sensor settings, monitoring, advanced diagnostics, and visualization thanks to IO-Link

Optimal detection of any kind of transparent object
Quick and easy operation via the push of a button – automatic setting of the correct switching threshold
Less downtime due to a Continuous Threshold Adaption which compensates for changing environmental conditions, including
temperature, dust and drift effects
The well-defined, highly visible intense light spot provides quick and reliable alignment
IO-Link provides easy data access from the PLC
Quick and easy configuration
Quick and easy integration using function blocks
Easy device replacement and identification

Tears in transparent films