Dimensions (W x H x D): 30.4 mm x 53 mm x 80 mm
Sensing distance: ≤ 50 mm 1)
Housing design: Large
Light source: LED, UV 2)
Wave length: 375 nm
Light spot size: 5 mm x 15 mm
High-sensitivity UV luminescence detection: Detects fluorescent or luminescent marks, adhesives, and labels even on challenging surfaces and backgrounds

High-sensitivity UV luminescence detection: Detects fluorescent or luminescent marks, adhesives, and labels even on challenging surfaces and backgrounds
Ultra-fast response performance: Switching frequency up to 6 kHz and response time ≤ 80 µs ensures accurate detection in high-speed production environments
Simple teach-in with fine adjustment: One-button teach-in and adjustable sensitivity allow quick setup and adaptation to different applications and materials
Compact and rugged IP67 housing: Durable construction with dust and water protection ensures reliable operation in tough industrial conditions

The SICK LUT3-851 (Part No. 1012870) is a powerful luminescence sensor designed for applications requiring precise detection of fluorescent or luminescent materials. By utilizing UV (ultraviolet) light technology, the sensor can identify marks, labels, adhesives, or coatings that may be invisible to the human eye or difficult to detect with conventional optical sensors. This makes it especially valuable in packaging, labeling, printing, and material-handling industries where accurate detection directly contributes to quality control and productivity.

One of the standout features of the LUT3-851 is its ability to detect even very faint luminescent signals. It works effectively across a variety of surfaces and materials, regardless of reflectivity, color, or texture. This ensures reliable performance when monitoring transparent adhesive strips, invisible registration marks on packaging film, or luminescent labels used in automated production processes.

The sensor’s speed and precision are equally impressive. With a switching frequency of up to 6 kHz and a response time of just 80 microseconds, the LUT3-851 is optimized for high-speed operations. Whether installed on a fast-moving conveyor system, a label applicator, or high-output printing equipment, it guarantees dependable detection without slowing down workflow. This helps minimize production errors, reduce waste, and maintain consistent throughput.

Ease of use is built into its design. The LUT3-851 features a simple one-button teach-in process that allows operators to configure the sensor quickly. Fine adjustment options further enhance adaptability, ensuring reliable detection across different luminescent intensities and production conditions. This user-friendly setup not only saves time during installation but also makes adjustments during product or material changes straightforward and efficient.

The sensor is also designed for ruggedness and durability. Its compact housing makes it easy to integrate into space-limited machinery, while the IP67 protection rating ensures resilience against dust, moisture, and industrial contaminants. Built for long-term reliability, the LUT3-851 delivers consistent performance even in demanding environments, making it a dependable solution for continuous-use applications.

In summary, the SICK LUT3-851 combines advanced UV-based detection, ultra-fast switching performance, easy teach-in operation, and durable housing design to deliver a superior solution for luminescence-based sensing tasks. It ensures accurate, repeatable detection where conventional sensors may fail, enabling manufacturers to achieve higher quality standards, reduce downtime, and optimize efficiency in complex industrial processes. Whether applied in packaging, labeling, or high-speed printing, the LUT3-851 provides the precision and robustness required for modern automation challenges.