he SICK WTB9-3N1161P02 is a compact photoelectric fork sensor designed for high-precision object detection and counting in automated systems. This through-beam sensor features a precise U-shaped design and provides reliable detection of small objects passing through the fork. The "3N1161P02" suffix indicates specific electrical characteristics and output configuration.
Technical Specifications
Parameter Specification
Sensor Type Photoelectric Fork Sensor
Sensing Principle Through-beam
Gap Width Model-specific (e.g., 9 mm)
Light Source Infrared LED
Output Type NPN
Supply Voltage 10-30 V DC
Switching Frequency High-speed operation
Response Time <1 ms
Housing Material Industrial plastic
Protection Rating IP67
Connection Pre-wired cable
Operating Temperature -25°C to +55°C
Typical Applications
Object Counting: Parts counting on conveyor belts
Label Detection: Missing label detection in packaging
Cap Sensing: Bottle cap presence verification
Small Parts Detection: Electronic component detection
Web Break Detection: Material break monitoring
Print Registration: Mark detection in printing applications