$ 841.11
Discover the SICK LUT1B-31325 luminescence sensor for precise, fast detection of invisible marks in labeling, packaging, and automation lines.
The SICK LUT1B-31325 Luminescence Sensor is built to detect fluorescent or invisible marks on a wide variety of materials with exceptional reliability. Using a blue LED light source and advanced optical filters, it identifies luminescent targets that ordinary sensors cannot detect. The sensor maintains stable performance across working distances of up to 60 mm, making it ideal for production and packaging environments. Its compact zinc die-cast body, quick installation, and IP67 protection rating ensure long-term durability and precise operation even in harsh industrial conditions.
Designed for precision and speed, the LUT1B-31325 offers a rapid 85 µs response and 6 kHz switching frequency, supporting high-speed automation lines. Its double teach-in function allows quick adjustment to different materials, minimizing setup time and ensuring accurate detection regardless of surface type or color. With both PNP and NPN outputs, it integrates easily into existing systems. The strong filtering system reduces interference from ambient light, improving consistency in applications such as label verification, adhesive bead control, and print mark detection. This combination of speed, adaptability, and stability enhances overall production efficiency and quality assurance.
Because precision matters where the human eye fails. The SICK LUT1B-31325 uses intelligent blue-light technology to uncover hidden luminescent marks with unmatched speed and stability. Compact, rugged, and ultra-fast, it’s the sensor that brings invisible quality control to light—perfect for modern automated lines demanding flawless detection accuracy.
Traditional sensors struggle with invisible markings, fluorescent adhesives, or transparent coatings. The LUT1B-31325 solves this challenge by detecting subtle luminescent cues with precision, even under variable lighting or complex backgrounds. It ensures every label, seal, or mark is identified correctly—preventing production errors, mislabels, and costly quality failures.
| Feature | Details | Benefit |
|---|---|---|
| Detection Principle | Luminescence sensing using blue LED (470 nm) | Accurately detects invisible fluorescent marks and coatings. |
| Sensing Distance | 15 mm – 60 mm (≤ 50 mm typical) | Flexible installation range for different production setups. |
| Response Time | 85 µs | Enables instant detection in high-speed lines. |
| Switching Frequency | 6 kHz | Handles rapid process changes without missing a mark. |
| Output Type | PNP/NPN, Light switching | Compatible with various PLC and automation systems. |
| Adjustment Method | Dual teach-in button | Simple calibration for fast setup and material changes. |
| Light Spot Size | 5 mm × 5 mm | Focused detection for small or detailed luminescent targets. |
| Housing Material | Zinc die-cast | Provides mechanical strength and vibration resistance. |
| Enclosure Rating | IP67 | Reliable performance in dusty or humid industrial environments. |
| Connection Type | M12, 5-pin male connector | Standard industrial connector ensures secure wiring. |
| Supply Voltage | 10 V DC – 30 V DC | Supports common control system power ranges. |
| Current Consumption | < 40 mA | Low energy usage reduces operating costs. |
| Output Current | Max. 200 mA | Strong signal output suitable for most controllers. |
| Operating Temperature | –20 °C … +60 °C | Wide ambient range for diverse industrial conditions. |
| Protection Class | Class III | Safe operation with protective circuit design. |
| Dimensions (W × H × D) | 23 × 70 × 47.5 mm | Compact size for easy installation in limited spaces. |
Download SICK LUT1B-31325 (1027593) Datasheet
In high-speed packaging environments, clear or lightly printed labels often go unnoticed by standard sensors. The SICK LUT1B-31325 overcomes this issue by detecting fluorescent traces within label adhesives or print marks. Its blue LED light source identifies subtle luminescent signals, ensuring accurate label placement and orientation. The compact body and fast 85 µs response time enable precise detection on rapidly moving bottles or containers, helping manufacturers maintain label accuracy, reduce waste, and improve production efficiency.
Many adhesives used in carton sealing and assembly are invisible once applied, making inspection difficult. By using luminescent additives and the LUT1B-31325’s fluorescence detection capability, production systems can instantly verify the presence and correct coverage of glue lines. Its double teach-in calibration quickly adapts to varying materials and lighting, ensuring consistent performance. The sensor’s IP67-rated metal housing allows operation in challenging environments, reducing rework and ensuring every package is securely sealed.
Wood processing lines often mark boards with fluorescent chalk or ink to guide cutting or defect identification. The LUT1B-31325 detects these markings regardless of surface color or grain pattern, enabling automated sorters to react accurately. With a 50 mm sensing distance and robust zinc die-cast design, it withstands vibration and dust common in timber facilities. Its rapid switching frequency allows seamless integration with high-speed conveyors, improving sorting precision and minimizing downtime.
For luxury goods and pharmaceutical packaging, tamper-proof seals and invisible authenticity markings are essential. The LUT1B-31325 identifies these hidden luminescent marks without altering product appearance. Its focused 5 × 5 mm light spot and advanced optical filtering detect even faint fluorescent coatings, confirming seal integrity and authenticity. Compact dimensions make it ideal for tight spaces on conveyor systems, ensuring consistent verification of each item before shipment and enhancing brand protection.
| Category | Product Name | Manufacturer Part Number | Article Number | Description | Compatibility & Benefit |
|---|---|---|---|---|---|
| Reflectors / Optical Aids | Fluorescent Writing Chalk | LUM-KLK | 1002959 | Red fluorescent calibration chalk for setup and verification. | Used to create luminescent reference marks for precise sensor alignment. |
| Fluorescent Chalk Set | Thick Fluorescent Chalk (12 pcs) | LUM-FT | 1004460 | Set of red fluorescent chalk sticks for consistent marking. | Helps operators test and teach sensors during installation or maintenance. |
| Angled Sensor Cable (2 m) | Sensor/Actuator Cable | YG2A15-020VB5XLEAX | 2096215 | M12 5-pin angled connector, PVC, 2 m unshielded. | Compact wiring option for nearby controllers or short-reach panels. |
| Angled Sensor Cable (5 m) | Sensor/Actuator Cable | YG2A15-050VB5XLEAX | 2096216 | M12 5-pin angled connector, PVC, 5 m unshielded. | Suitable for mid-length cable runs in packaging or assembly systems. |
| Angled Sensor Cable (10 m) | Sensor/Actuator Cable | YG2A15-100VB5XLEAX | 2096217 | M12 5-pin angled connector, PVC, 10 m unshielded. | Ideal for long conveyor lines or distant control cabinets. |
| Straight Sensor Cable (2 m) | Sensor/Actuator Cable | YF2A15-020VB5XLEAX | 2096239 | M12 5-pin straight connector, PVC, 2 m unshielded. | Compact solution for tight machine spaces or close-mounted sensors. |
| Straight Sensor Cable (5 m) | Sensor/Actuator Cable | YF2A15-050VB5XLEAX | 2096240 | M12 5-pin straight connector, PVC, 5 m unshielded. | Medium length for standard production setups. |
| Straight Sensor Cable (10 m) | Sensor/Actuator Cable | YF2A15-100VB5XLEAX | 2096241 | M12 5-pin straight connector, PVC, 10 m unshielded. | Provides reliable signal over long distances. |
| Compact Cable (Angled 0.6 m) | Short Sensor Cable | YG2A15-C60VB5XLEAX | 2145573 | M12 5-pin angled connector, PVC 0.6 m. | Perfect for compact machine interiors or test stations. |
| Compact Cable (Straight 0.6 m) | Short Sensor Cable | YF2A15-C60VB5XLEAX | 2145570 | M12 5-pin straight connector, PVC 0.6 m. | Enables direct connection between modules with minimal slack. |
| Angled Cable (1 m) | Sensor/Actuator Cable | YG2A15-010VB5XLEAX | 2145574 | M12 5-pin angled connector, PVC 1 m. | Good balance between flexibility and reach. |
| Angled Cable (3 m) | Sensor/Actuator Cable | YG2A15-030VB5XLEAX | 2145575 | M12 5-pin angled connector, PVC 3 m. | Ideal for robotic arms and moving mechanisms. |
| Straight Cable (3 m) | Sensor/Actuator Cable | YF2A15-030VB5XLEAX | 2145572 | M12 5-pin straight connector, PVC 3 m. | Clean routing for fixed sensor applications. |
| Female Connector (Straight) | M12 5-Pin Connector | DOS-1205-G | 6009719 | Straight female connector with screw-type terminals. | Ensures easy wiring and quick replacement during servicing. |
| Female Connector (Angled) | M12 5-Pin Connector | DOS-1205-W | 6009720 | Angled female connector with screw-type terminals. | Saves space and reduces strain in tight control boxes. |
For expert guidance before placing your order.
Warranty – 1-year warranty for your peace of mind.
Global Shipping – We ship worldwide with secure packaging and reliable delivery.
Technical Support – Contact us for professional after-sales technical assistance.
