Contrast Sensors – SICK
Description:
SICK Contrast Sensors are high-speed opto-electronic sensors designed for detecting printed or control marks in packaging and printing machines. They can sense minute grayscale or color contrasts on matte, shiny, or transparent surfaces, ensuring precise positioning, counting, and registration. Multiple device types with different contrast resolution methods and teach-in options are available for flexible industrial applications.
Key Features / Specifications
- Sensing Principle: Optical contrast detection
- Detection Target: Print marks, control marks, registration marks
- Surface Types: Matte, shiny, transparent, foils, paper, films
- Contrast Resolution: High, capable of detecting minimal grayscale differences
- Response Time: High-speed, suitable for fast-moving production lines
- Teach-In Options: Manual or automatic teach-in for target detection
- Output Type: PNP / NPN, NO / NC
- Power Supply: 10–30 V DC
- Housing Material: Plastic / Metal (model dependent)
- Protection Class: IP65 / IP67
- Mounting: Compact and flexible installation
- Operating Temperature: –10 °C to +55 °C (typical)
Applications
- Packaging machines – print mark detection
- Printing presses – registration mark monitoring
- Foil and film inspection
- Labeling machines – control mark detection
- High-speed automated production lines




