1140668

Overview

The SICK model 1140668 is a luminescence sensor belonging to the LUT9 series, designed for detecting fluorescent materials. It utilizes an ultraviolet LED light source with a central wavelength of 375 nm and incorporates receiving filters that block wavelengths below 420 nm to suppress background luminescence. The device features a vertical long-side light emission pattern producing a 12 mm x 12 mm light spot. It operates within a working range of 30 mm to 110 mm from the leading edge of the lens, with a maximum sensing distance of 90 mm. The housing dimensions are 30.4 mm in width, 53 mm in height, and 80 mm in depth.

Feature Summary

• Equipped with an ultraviolet LED light source optimized for fluorescence detection applications
• Features integrated receiving filters to effectively suppress background luminescence interference
• Supports static 2-point teach-in mode with manual fine adjustment for precise calibration
• Provides light switching output functionality controlled via the teach-in process

Applications

• Detection of fluorescent marking or labeling on packaging surfaces
• Quality control inspection for fluorescent ink verification in printing processes
• Identification of specific materials based on their luminescent properties in assembly lines

Procurement Notes

Verify the complete part number including any ordering suffixes against the official SICK catalog to ensure correct configuration. Confirm that the required cable length and connector type match your system integration needs, as these may be specified separately. Ensure the operating environment remains within the specified temperature limits for optimal UV LED lifespan.

Selection Notes

Select this component when application requirements involve identifying objects through their fluorescent characteristics rather than standard reflectivity. The vertical light emission direction and specific spectral filtering make it suitable for environments with high ambient light or competing luminescent sources. Consider the 90 mm sensing distance and 12 mm spot size for spatial resolution requirements.

Part Context

This sensor is part of the LUT9 series of luminescence sensors manufactured by SICK. The series is engineered for industrial automation tasks requiring reliable detection of fluorescent substances. The design emphasizes robust performance in factory settings where standard optical sensors may fail due to background noise or material similarity.

Replacement Considerations

Consult the official SICK replacement guide for direct equivalents. Verify compatibility of mounting dimensions and electrical interfaces before substituting with other models in the LUT series or alternative luminescence sensors.

FAQ

What is the average service life of the UV LED in this sensor?

The average service life is 100,000 hours at an ambient temperature of +25°C.

How does the sensor handle background luminescence?

It uses receiving filters that block wavelengths shorter than 420 nm to suppress background luminescence and isolate the target signal.