KEYENCE digital fiber optic sensing assembly consisting of an FS-N41C FS-N40 Series fiber amplifier and FU-57TZ through-beam fiber unit.

The FS-N41C is an M8 connector-type main amplifier with IO-Link support, dual control outputs, external input, digital display, and selectable high-speed response modes. The included FU-57TZ is a compact Tough-Flex through-beam fiber unit designed for precise detection applications.

FS-N41C Fiber Amplifier Specifications:

• Series: FS-N40
• Model: FS-N41C
• Type: Digital fiber optic sensor amplifier
• Unit type: Main unit
• Connection: M8 connector
• Communication: IO-Link V1.1, COM2
• Control outputs: 2
• External inputs: 1
• Light source: Red 4-element LED, 660 nm
• Output: Open collector
• Output rating: 30 VDC max., 100 mA max. per output
• Supply voltage: 10–30 VDC
• Normal power consumption: 910 mW max.
• Response modes: 23 µs / 50 µs / 250 µs / 500 µs / 1 ms / 4 ms / 16 ms / 64 ms
• Operating temperature: -20 to +55 °C
• Housing material: Polycarbonate
• Approximate amplifier weight: 25 g

FU-57TZ Fiber Unit Specifications:

• Model: FU-57TZ
• Type: Through-beam fiber unit
• Optical axis diameter: Ø0.5 mm
• Beam emitting direction: Side
• Fiber length: 1 m, free-cut
• Fiber diameter: Ø1.0 mm
• Minimum bend radius: R2 mm
• Fiber type: Tough-Flex
• Minimum detectable object: Ø0.005 mm under optimal conditions
• Operating temperature: -40 to +50 °C
• Approximate weight: 5 g

Includes the FS-N41C amplifier, FU-57TZ fiber unit with the pictured metal sensing heads/mounting hardware, and the pictured M8 connection cable.

Exact model/part number and length of the connection cable are not confirmed.

Used, fully functional.