LDu Luminescence Sensor - DATALOGIC

LDu Luminescence Sensors from Datalogic represent a specialized class of photoelectric sensors designed to detect marks, labels, or targets that emit fluorescence under UV or blue light excitation. These sensors operate by emitting a modulated UV light beam and analyzing the visible light re-emitted by luminescent materials, offering immunity to background color changes and high contrast detection even on transparent or reflective surfaces. Key technical parameters include sensing distances typically ranging from 12 mm to 80 mm, response times as fast as 50 µs, and a focused spot size for precise detection. They are available in various housing styles, including cylindrical M18 and compact rectangular formats, with both NPN and PNP output configurations, and often feature teach-in programming for easy setup.

These sensors are critical in applications where traditional contrast or color sensors fail, such as detecting invisible UV-fluorescent marks on packaging, labels, or products. They are widely used in the packaging industry for registration mark detection on transparent films, in the pharmaceutical sector for verifying seal integrity, in the automotive industry for glue bead detection, and in woodworking for identifying coatings or treatments. Their ability to detect luminescent additives makes them ideal for quality control in high-speed production lines, ensuring accurate positioning and sorting.

Within the LDu series, key subcategories include the LDu-12 series with a 12 mm sensing distance and M18 threaded housing, the LDu-50 series for longer range up to 50 mm, and the LDu-80 series for extended detection. The article code structure typically follows the pattern LDu-xxxx-xx, where the first digits indicate the sensing distance (e.g., 12, 50, 80) and the suffix denotes output type (e.g., N for NPN, P for PNP) and connection type (e.g., M12 connector or cable). For example, LDu-12-N-M12 indicates a 12 mm sensor with NPN output and M12 connector.

At Electric Automation Network, we offer the LDu Luminescence Sensors with competitive pricing, up to 65% discount off list price, and fast express shipping worldwide. Our team of specialized electrical engineers provides personalized technical support to help you select the right sensor for your application, including assistance with wiring, configuration, and integration into existing control systems. We also provide detailed technical documentation for each article, ensuring you have all the information needed for a successful installation.