Brand :
KeyenceThe FU-67 is a reflective fiber unit manufactured by Keyence.
It is not a standalone sensor and requires the use of a fiber amplifier (such as the FS-V30 series).

| Brand | KEYENCE |
| Model / Part Number | FU-67 |
| Size | M6 |
| Detection arrangement | Parallel |
| Fibre unit length | 2 m free-cut |
| Fibre unit diameter | ø2.2×2 |
| Shape | Straight |
| Minimum bend radius | R2 mm Tough-Flex |
| Minimum detectable object | Gold wire with a diameter of 0.005 mm *2 |
|
Environmental resistance /Ambient temperature |
-40 to +50 °C |
| Weight | 21g |
Q: Why can't the object be detected?
A: The FU-67 was designed for close-range, high-precision inspection. Its optimal working distance is typically between 0 and 10 mm.
Q: Completely no signal; fiber optic cable head is visibly damaged.
A: If the installation space is too narrow, forcibly inserting the fiber optic head (φ2.2mm) may cause it to break due to lateral force; or the object being tested (such as a high-speed moving metal sheet) may directly impact the fiber optic head.
Q: What is the working principle of the FU-67 object detection system?
A: By utilizing a parallel optical axis design, the beam divergence is minimal and the energy is highly concentrated, thereby achieving a highly sensitive response to tiny obstructions.
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