Photoelectric Contrast sensors TL46 Series

Datasensing TL46 Series

The TL46 Series provides a premium family of contrast sensors, engineered for high-precision registration mark detection, high-speed switching, and industrial robustness. With a nominal sensing distance of ~12 mm (typical) and spot dimensions as small as ~1.5 × 5 mm, the series supports switching frequencies from ~10 kHz up to ~70 kHz and jitter times down to ~3 μs — delivering exceptional detection reliability, minimal delay, and superior repeatability.

Design & Functionality

• The sensors feature a rugged metal/aluminium housing (approx. 32 × 60 × 82 mm) with M12 connector, rotatable to 5 positions — making mechanical integration and alignment easier. 
• Optical and performance highlights include:
  • Wide-spectrum RGB or white LED emission enabling improved detection of colored registration marks and contrast changes. 
  • Ultra-fast switching: models up to ~70 kHz switching frequency for the highest throughput applications. 
  • Ultra-low jitter: certain low-jitter versions offer response times down to ~3 µs for extremely precise mark detection. 
  • Spot dimension as small as ~1.5 × 5 mm on standard models, enabling precise detection of fine marks. 
• Logic & outputs: Selectable NPN/PNP or analog output (0–5 V) depending on model; Dark/Light selectable; some models include IO-Link connectivity for smart sensor functions. 
• Protection & environment: Rated IP67, robust against dust and splash in industrial printing and packaging environments. Operating temperature typically from -10 °C up to +55 °C. 

Total Crossed Beams

(Interpreted here as ensuring full detection reliability across the sensing field rather than literal crossed optical beams.)

• The TL46 ensures a stable detection zone even at very high speeds and minimal signal variance — resulting in fewer missed mark detections, higher repeatability, and improved process reliability.
• Its combination of small-spot optics, wide-spectrum LED emission, ultra-fast switching and low jitter make it particularly suitable for high-precision printing, label registration, film tracking, packaging lines and other applications where accuracy, speed, and repeatability are critical.

Beam Pitch Options

(Here interpreted as variant options regarding switching frequency / optics rather than literal beam spacing.)

• Example variant: Standard switching up to ~15-20 kHz for general contrast detection tasks.
• Example variant: High-speed/low-jitter models offering up to ~70 kHz switching and jitter down to ~3 µs for ultra-high-speed processes. 
• These variant options allow you to select a TL46 model that matches your mark size, mounting distance, speed requirements and control logic — providing design flexibility.

Intrinsic Synchronism

• The optics, electronics and output logic are fully integrated within the robust housing — no external synchronisation modules required — simplifying wiring and reducing installation complexity.
• With built-in push-buttons or trimmers, status indicators (output LED, bar-graph or 4-digit display in enhanced models) the TL46 series supports fast commissioning, easy adjustment, and enhanced diagnostics.

Operational Advantages

• High-speed registration mark detection: With switching frequencies up to ~70 kHz and jitter down to ~3 µs, the TL46 handles demanding printing and packaging speeds.
• Small-spot precision & color-spectrum emission: Spot sizes ~1.5 × 5 mm combined with RGB/white LED emission deliver superior mark contrast detection and tolerance to target variation.
• Flexible logic integration: Selectable NPN/PNP/analog outputs, IO-Link options (depending on model) and rotatable M12 connector simplify integration into control systems.
• Industrial robustness: Metal housing, IP67 protection, durable optics and standard mounting ensure reliability in challenging environments.
• Applications: Ideal for colored registration mark detection, label and film tracking, packaging registration on high-speed machines, printing press cut-mark detection, web-handling mark verification — where precision, speed, and compact integration are required.