Product Description

​The FU-68 is a high-precision reflective fiber optic sensor head from KEYENCE's FU series, designed for applications requiring compact size and exceptional sensitivity. With an M4 thread size and a 2-meter free-cut fiber unit, it offers flexibility in installation. The sensor head features a 1.0 mm diameter fiber unit and a minimum bend radius of 4 mm, ensuring durability and adaptability in tight spaces. Its robust construction allows it to operate effectively in ambient temperatures ranging from -40°C to +70°C, making it suitable for various industrial environments. Weighing approximately 8 grams, the FU-68 provides reliable performance for detecting minute objects, such as gold wires with a diameter of 0.005 mm.​

Technical Specifications

• Model: FU-68
• Thread Size: M4
• Fiber Unit Length: 2 meters (free-cut)
• Fiber Unit Diameter: ø1.0×2 mm
• Minimum Bend Radius: 4 mm (high-flex)
• Minimum Detectable Object: Gold wire with a diameter of 0.005 mm
• Ambient Temperature Range: -40 to +70°C
• Weight: Approximately 8 g