Purchase now: Schneider Electric XURK1KSMM12 Contrast Sensor
Purchase now: Atlantech Drives provides you the Schneider Electric XURK1KSMM12 (Brand: Telemecanique Sensors), a high-speed Photoelectric Contrast Sensor (also known as a Print Mark Reader). Designed for the packaging, labeling, and printing industry, this sensor detects registration marks on moving webs of material (paper, plastic, foil). Unlike standard photocells, the XURK uses an **RGB Transmission LED** (Red, Green, Blue) technology to automatically select the best light color for maximizing the contrast between the mark and the background.
Technical Specifications and High-Speed Detection
The XURK1KSMM12 is housed in a rugged **Zinc Die-Cast Metal** case, making it immune to electrical noise and mechanical impact typical of packaging machines. It features a switching frequency of **10 kHz**, allowing it to detect marks on production lines running at extremely high speeds. The «MM12» suffix indicates a rotatable **M12 Connector** (4-pin), which simplifies cable routing. It operates on 10-30 V DC and provides a programmable PNP/NPN output (configurable via the teach function).
- Part Number: XURK1KSMM12.
- Series: XU (Application Specific).
- Sensing Mode: Diffuse (Contrast).
- Sensing Distance: 9 mm (± 3 mm).
- Light Source: Auto-selectable RGB LED.
- Spot Size: 2 x 7 mm (Rectangular).
- Output: 1 x PNP/NPN (Configurable).
- Setting: Teach Button (Static or Dynamic).
- Protection: IP 67.
Expert Installation Advice: The «Teach» Process
Setting up a color sensor can be tricky if the background changes. Expert Tip: The XURK supports **Dynamic Teach**. Instead of stopping the line to teach the «Mark» and then the «Background», you can simply hold the Teach button while the web is moving (passing both mark and background under the spot). The sensor automatically calculates the optimal switching threshold. Ensure the light spot is focused sharply (at ~9mm distance) for reliable detection of low-contrast colors like yellow on white.
Frequently Asked Questions (FAQs)
Q: Does it detect transparent films?
A: It detects marks on film, but if the background is completely transparent, you might need a reflector or a specific ultrasonic sensor. For opaque marks on clear film, it works fine if the background contrast is sufficient.
Q: What is the response time?
A: Less than 50 microseconds (µs), which is critical for registering cut points on flow wrappers running at hundreds of packs per minute.
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