Autonics FT-420-10 Fiber Optic Sensor
Autonics FT-420-10 Through-Beam Fiber Optic Sensor Unit
Autonics FT-420-10 is a through-beam type fiber optic sensor unit with 10 m of FREE-CUT plastic fiber, designed for long-distance, high-reliability object detection when paired with Autonics fiber amplifiers.
The Autonics FT-420-10 is a through-beam (opposed type) fiber optic sensor unit from the FT Series, optimized for applications requiring long sensing distance and high detection stability. Unlike diffuse reflective fibers, through-beam sensing provides maximum reliability for transparent, dark, or irregular objects.
It features a 10 m FREE-CUT plastic fiber cable, allowing installers to cut the fiber to the exact required length on-site. The FT-420-10 must be used with a compatible Autonics fiber optic amplifier (BF3RX, BF4R, BF5R series, etc.).
Key Features
Through-beam (emitter–receiver) fiber optic sensing
10 m FREE-CUT plastic fiber cable
Long sensing distance and high stability
Ideal for transparent, glossy, or small objects
Excellent immunity to electrical noise (EMI)
Flexible routing for large machines
Reliable performance with Autonics BF-series amplifiers
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | FT-420-10 |
| Fiber Type | Plastic fiber |
| Sensing Type | Through-beam (Opposed) |
| Cable Length | 10 m (FREE CUT) |
| Minimum Bend Radius | R15 |
| Sensing Principle | Light interruption |
| Ambient Temperature | −40 to +70 °C |
| Compatible Amplifiers | BF3RX, BF4R, BF5R, BFX, BFN |
| Head Type | Compact/threaded |
| Weight | Approx. 180 g |
Applications
Long-distance object detection
Transparent or semi-transparent object sensing
Packaging and bottling lines
Conveyor object counting
Electronics and precision assembly
Large automation machines
What’s in the Box?
Autonics FT-420-10 Fiber Optic Sensor Unit (Emitter & Receiver)
10 m FREE-CUT fiber cable
Instruction leaflet
FAQs
Q1. Can FT-420-10 work without an amplifier?
No. It must be used with a compatible Autonics fiber optic amplifier.
Q2. What is the advantage of through-beam sensing?
It offers longer sensing distance and higher reliability than diffuse sensing.
Q3. What does FREE-CUT mean?
The fiber cable can be cut to the required length on-site using a proper cutter.
Q4. Is this suitable for transparent objects?
Yes. Through-beam sensors are ideal for transparent and reflective objects.
Q5. Which amplifiers are compatible?
BF3RX, BF4R, BF5R, BFX, and BFN series.