Attributes

Brand	-
Category	Stationery, Educational Electronics & Office Supplies / Manuals & Guides
Origin	-
Brand	Keyence
Model Number	FS-V31P
Included Component	Fiber Optic FU-77V
Condition	Refurbished / Repaired
Documentation	User Manual Included
Sensor Type	Digital Fiber Amplifier
Power Supply	12-24 VDC
Output Configuration	NPN/PNP Selectable
Response Time	50 microseconds
Warranty Status	90-Day Seller Warranty

6 reviews

Anonymous

Mar 29, 2026

Rating: 5/5

Excellent sensitivity and response

Installed this on a high-speed sorting machine. The response time is incredibly fast, and the digital display makes setting thresholds very intuitive. The fact that it comes with the fiber optic cable saved us an extra order.

Anonymous

Mar 25, 2026

Rating: 5/5

Reliable and cost-effective

I was hesitant about buying a repaired electronic component, but Keyence units are built like tanks. This one has been running 24/7 for three weeks without a single glitch. The manual was clear and helpful for setup.

Anonymous

Mar 25, 2026

Rating: 5/5

Perfect replacement for our production line

We needed a quick replacement for a failed unit on our packaging line. This refurbished FS-V31P arrived quickly and worked flawlessly out of the box. The included FU-77V fiber was exactly what we needed. Great value compared to buying brand new.

Anonymous

Mar 07, 2026

Rating: 4/5

Good condition, minor cosmetic wear

The amplifier functions perfectly and calibration was easy using the included manual. There are some very slight scuffs on the casing, which is expected for a repaired item, but it doesn't affect performance at all. Would buy again.

Anonymous

Mar 07, 2026

Rating: 4/5

Works great, packaging could be better

The unit itself is fantastic and performs just like a new one. My only complaint is that the packaging was a bit loose, though fortunately nothing was damaged during shipping. The price point makes it a no-brainer for spare parts.

Anonymous

Mar 02, 2026

Rating: 5/5

Saved us from downtime

Our original amplifier died unexpectedly, and this was the only option available for immediate shipment. It arrived in two days, installed easily, and got our line running again. Very satisfied with the quality of the repair.

5 FAQ

Q: What is the exact warranty period for this repaired item?

A: This refurbished unit comes with a 90-day warranty covering functional defects. It does not cover physical damage caused by improper installation.

Q: Does this unit come with the mounting bracket?

A: Yes, the standard DIN rail mounting bracket is included with the amplifier unit.

Q: Is the manual in English or Japanese?

A: The included manual is the English version. A digital PDF copy can also be downloaded from the Keyence website if needed.

Q: Can this amplifier work with fiber optics from other brands?

A: While it is optimized for Keyence fibers like the included FU-77V, it may work with third-party fibers that match the specific physical dimensions and light transmission properties, though performance is not guaranteed.

Q: Has the firmware been updated to the latest version?

A: The unit has been tested to ensure it meets original factory specifications. Specific firmware versions vary by batch, but all units are verified to be fully compatible with current industrial standards.

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