The Keyence FU-42 Reflective Fiber Unit is a high-precision sensing solution designed for applications requiring accurate detection of micro-sized targets in demanding industrial environments. Compact, lightweight, and reliable, it integrates seamlessly with Keyence fiber optic amplifiers to deliver consistent detection in inspection, positioning, and automation tasks.

One of the standout features of the FU-42 is its ability to detect ultra-fine objects, such as gold wire with a diameter as small as 0.01 mm. This exceptional sensitivity makes it ideal for industries such as electronics, semiconductor production, and fine component assembly, where micro-level inspection is essential. The FU-42 ensures that even the most delicate or minute targets can be detected with stability and reliability.

Its compact and flexible fiber design allows for easy installation in space-constrained machinery. With a 0.5-meter fiber unit length, it is well-suited for short-range connections, while its minimum bend radius of 25 mm provides sufficient flexibility for routing around corners or through equipment without compromising performance. This makes it practical for both new installations and retrofits in automated systems.

The FU-42 is also built for robust performance in varying environments. It can operate across a wide temperature range of -40 to +70 °C and in relative humidity levels from 35 to 85% RH without condensation. This environmental resistance ensures stable performance in challenging factory conditions, from low-temperature storage facilities to high-heat industrial processes.

Despite its durability, the FU-42 is exceptionally lightweight at only 3 g, which makes handling and installation straightforward. Its polyethylene covering provides reliable protection while keeping the unit compact and easy to integrate. The low weight also reduces strain on connected equipment, further enhancing reliability in long-term operation.

Another advantage is its low hysteresis value of 20% max., which ensures consistent and repeatable detection distances. This stability is particularly valuable in applications where measurement repeatability and process accuracy are critical.

In conclusion, the Keyence FU-42 Reflective Fiber Unit is a compact, precise, and durable fiber sensor designed to handle micro-object detection in a wide range of industrial applications. With its combination of ultra-fine sensitivity, flexible installation, environmental resistance, and lightweight build, it is an essential tool for manufacturers who demand precision and reliability in their quality control and automation processes.