Leuze KRTM 20M/C-20-6526-S12 Contrast sensor

Leuze KRTM 20M/C-20-6526-S12 Contrast sensor The KRTM 20M/C-20-6526-S12 is a compact optical contrast sensor designed for high-precision differentiation between light and dark features on moving or stationary parts. It offers digital switching output with programmable threshold and teach-in to accommodate varying surface colors and textures in manufacturing lines. The device supports standard DC supply operation and is suitable for integration into tight automation spaces, where reliable color/contrast detection enables accurate part presence, sorting, and alignment tasks. Typical applications include bottleneck inspection, quality control for printed materials, and color-sensitive material handling. Key electrical and mechanical characteristics: - Sensing method: optical contrast detection with programmable threshold; differential light/dark recognition. - Supply voltage: DC, common industrial range (e.g., 10–30 V DC). - Output: digital switching (NPN/PNP or similar) with secure response to contrast changes. - Teach-in: accessible via external or built-in setup for fast calibration to varying surfaces. - Housing and mounting: compact form factor designed for mounting on standard machine frames; compatible with common mounting accessories for precise alignment. - Conductor/ cable options: supports standard industrial conductors/sizes typical for Leuze 3-wire DC sensors (e.g., 3-wire harnesses or M8/M12 connectors depending on exact variant); field-adjustable sensitivity and debounce settings. - Environmental/approval notes: expected IP-rated housing suitable for manufacturing environments; standard industrial certifications applicable to optical sensors. Recommended applications: - Detecting contrast differences on labels, markings, or colored features in packaging and labeling lines. - Color/contrast based part locating and alignment in assembly processes. - Quality checks where surface contrast indicates pass/fail criteria. Documentation - Technical Datasheet - Installation Instructions - Approvals/Certifications Overview - Product Family Catalog Page - Technical Datasheet https://www.leuze.com/en-us/documentation/tech-datasheet-krtm-20m-c-20-6526-s12.pdf - Installation Instructions https://www.leuze.com/en-us/documentation/installations-instructions-krtm-20m-c-20-6526-s12.pdf - Approvals/Certifications Overview https://www.leuze.com/en-us/documentation/approvals-krtm-20m-c-20-6526-s12.pdf - Product Family Catalog Page https://www.leuze.com/en-us/products/krtm-series/krtm-20m-c-20-6526-s12