Through-Beam Photoelectric Sensor for Discrete Object Detection
The SICK WE12-N1321 is a through-beam photoelectric sensor with a visible red LED light source, designed for reliable object detection across a defined gap between emitter and receiver. It operates on a 10-30 V DC supply and switches loads up to 100 mA. The metal zinc diecast housing (41.5 x 49 x 15 mm) provides mechanical robustness for industrial environments, and the 2-meter cable connection simplifies wiring in tight panel layouts.
Integration Notes
The through-beam design requires alignment of the emitter and receiver units across the detection gap; the visible red LED aids in optical alignment during commissioning. A potentiometer provides sensitivity adjustment, allowing fine-tuning for varying target sizes or environmental conditions like dust or mist. The 2-meter cable is pre-wired; verify polarity on the supply lines (10-30 V DC) before powering to avoid damage to the output stage.