The Keyence FU-38K is a heat-resistant fiber optic unit engineered to provide reliable detection in environments where extreme temperatures are present. With its ability to withstand conditions up to 250 °C (482 °F) and a robust design optimised for stability, the FU-38K is the ideal solution for industries that demand durability, precision, and long-term performance in challenging environments.

A defining feature of the FU-38K is its exceptional heat resistance. Rated for continuous use at temperatures as high as 250 °C, it is capable of maintaining stable detection in applications where conventional fiber units would fail. This makes it particularly valuable in industries such as metalworking, glass production, and food processing, where elevated temperatures are common.

The FU-38K comes with a fixed fiber length of 1 m (39.37″), which cannot be cut. This design ensures that the fiber maintains its structural integrity and heat resistance throughout its service life. The stable, non-modifiable length also contributes to consistent performance by preserving the protective materials and construction used to achieve high heat endurance.

Installation flexibility is enhanced by the unit‚Äö√Ñ√¥s minimum bend radius of R25 mm (0.984″). This allows the fiber to be routed around machine components or within equipment while maintaining reliable transmission performance. By accommodating moderate bends without degradation, the FU-38K provides engineers with versatility in setup while still ensuring long-term durability.

The fiber’s broad operating temperature range of -40 to +250 °C (-40 to 482 °F) highlights its ability to withstand not only extreme heat but also very low temperatures. This versatility ensures dependable operation in both hot production zones and cold storage environments, making it suitable for a diverse range of industrial processes.

Despite its rugged construction, the FU-38K is lightweight, with a total weight of approximately 45 g. This makes it easy to handle during installation and reduces mechanical stress on connected sensor units. The lightweight build combined with its compact design ensures ease of integration, even in space-constrained or complex machinery layouts.

Applications for the FU-38K are widespread. In automotive and aerospace manufacturing, it can be used for monitoring processes involving high-heat curing or metal treatment. In glass or ceramics industries, it ensures stable detection near furnaces or kilns. In food and beverage processing, it provides reliable sensing in environments subject to heat sterilisation or high-temperature cleaning.

In summary, the Keyence FU-38K is a durable, high-performance heat-resistant fiber optic unit that delivers reliable detection in extreme environments. With its 250 °C resistance, fixed 1 m length, flexible bend radius, and wide operating range, it offers a dependable solution for industries where temperature stability and durability are paramount. For manufacturers seeking consistent detection in harsh conditions, the FU-38K is a proven and robust choice.