The Sick LUT9U-12306 luminescence sensor (part number 1047055) is a specialized UV-based sensor designed to detect fluorescent or luminescent markings that are invisible to conventional sensors. Built with a UV-LED emitter operating at around 375 nm, it reliably excites luminescent materials, enabling precise detection of security markings, adhesives, coatings, and invisible inks used across multiple industries.

A key advantage of the LUT9U-12306 is its extended sensing range of 200 mm, which provides greater flexibility in installation. This longer detection capability is ideal for setups where the sensor must be positioned further away from the target, such as wide conveyors, larger components, or systems with physical spacing requirements. Despite the greater distance, the device maintains a well-defined and focused detection area, ensuring accuracy even when luminescent markings are small or applied irregularly.

To support seamless integration, the sensor includes both NPN and PNP switching outputs. Operating in Light-ON mode, it delivers a clear output signal when luminescence is detected. This dual compatibility with control systems makes it adaptable to a wide range of industrial automation platforms, minimizing installation challenges and ensuring versatile use.

The rugged IP67 housing allows the LUT9U-12306 to withstand tough industrial conditions. Its protection against dust and water ingress makes it dependable in environments where moisture, dirt, or debris might otherwise compromise performance. Combined with the standard 5-pin M12 male connector, it ensures secure wiring, quick setup, and reliable long-term operation.

Applications for this sensor are diverse. In packaging and labeling, it verifies invisible luminescent security marks that ensure authenticity and traceability. In the pharmaceutical sector, it can confirm the presence of luminescent codes on bottles or blister packs, supporting regulatory compliance and reducing errors. In electronics and automotive assembly, the sensor detects UV-sensitive adhesives or coatings applied during production, ensuring proper alignment and quality control. Its fast response time, typically between 75 µs and 1 ms, supports high-speed processes, making it a reliable choice for fast-moving production lines.

Overall, the Sick LUT9U-12306 is a powerful solution for industries requiring dependable luminescence detection at greater distances. Combining long-range capability, precise UV-based sensing, dual output flexibility, and rugged industrial construction, it enhances process reliability and ensures accurate detection even in the most demanding environments. Its design reflects Sick’s commitment to providing sensors that not only improve efficiency but also safeguard quality and consistency in modern automation systems.