The Sick LUT9U-11326 luminescence sensor (part number 1047053) is a compact and reliable device engineered to detect fluorescent and luminescent materials with high precision. Designed around a UV-LED light source operating near 375 nm, it excites luminescent properties that cannot be detected by conventional visible-light sensors. This makes the LUT9U-11326 particularly valuable in industries where subtle markings, adhesives, or security features must be identified quickly and reliably.

This model distinguishes itself with a sensing range of 90 mm, allowing greater installation flexibility compared to shorter-range sensors. The optical design produces a focused spot, ensuring precise detection even when dealing with small or irregularly placed targets. By concentrating on a defined detection area, the sensor minimizes false triggers from surrounding surfaces or environmental light, which is critical in high-speed production environments.

Integration into existing control systems is made simple with its dual NPN/PNP outputs. The LUT9U-11326 operates in Light-ON mode, meaning the output is triggered when luminescent material is detected. This dual compatibility eliminates the need to choose between output types during system design, making the device versatile for a wide range of automation platforms.

Reliability in demanding applications is supported by the sensor’s IP67-rated housing. This robust protection ensures resistance to dust, moisture, and industrial contaminants, enabling deployment in tough operating conditions without sacrificing performance. In addition, the standard 5-pin M12 connector provides a secure and widely adopted connection method, making wiring straightforward while ensuring long-term stability in operation.

Practical uses for the LUT9U-11326 span across multiple industries. In packaging, the sensor is ideal for verifying invisible luminescent security marks applied to labels or cartons. In electronics manufacturing, it can identify UV-sensitive adhesives or coatings applied during assembly processes. In pharmaceuticals, the device ensures accurate detection of luminescent codes on packaging for compliance and traceability. Its fast response times, ranging from approximately 75 µs to 1 ms, allow seamless integration into rapid conveyor or assembly line operations, where delays or missed detections are not acceptable.

Ultimately, the Sick LUT9U-11326 delivers a powerful combination of extended sensing range, precision optical design, flexible outputs, and rugged durability. It ensures reliable detection of luminescent materials in applications where conventional sensors fall short. Whether used for quality assurance, product verification, or security marking detection, this sensor enhances process reliability and production efficiency. With its compact design and industry-standard connectivity, it provides engineers and integrators with a dependable, long-lasting solution tailored for modern automation challenges.