Autonics BF4R Fiber Optic Sensor
Autonics BF4R Fiber Optic Amplifier Sensor (Red LED)
Autonics BF4R is a high-speed fiber optic amplifier sensor with auto sensitivity setting, mutual interference prevention, and self-diagnosis, designed for precise detection of small targets in compact and harsh industrial environments.
The Autonics BF4R is a fiber optic amplifier sensor using a red LED light source (660 nm, modulated). It is designed to work with Autonics fiber optic units to enable precise detection of very small objects, even in dusty, narrow, or complex installation areas.
The BF4R offers ultra-fast response time (≤ 0.5 ms), automatic Light ON / Dark ON selection, mutual interference prevention, and self-diagnosis output, making it a reliable choice for demanding industrial automation systems.
Key Features
Ultra-fast response time: ≤ 0.5 ms
Red LED light source (660 nm, modulated)
Auto sensitivity setting via button
Light ON / Dark ON automatically selectable
Mutual interference prevention (dual frequency)
Built-in self-diagnosis output
OFF-delay timer function (≈ 40 ms, fixed)
Reverse polarity & output overcurrent protection
DIN rail or panel mounting
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | BF4R |
| Sensor Type | Fiber Optic Amplifier |
| Light Source | Red LED (660 nm, modulated) |
| Response Time | ≤ 0.5 ms (frequency 1), ≤ 0.7 ms (frequency 2) |
| Sensitivity Setting | Button (Auto) |
| Operation Mode | Light ON / Dark ON (auto selectable) |
| Output Type | NPN / PNP open collector (model dependent) |
| Power Supply | 12–24 V DC ±10% |
| Current Consumption | ≤ 45 mA |
| Load Voltage | ≤ 30 V DC |
| Load Current | ≤ 100 mA |
| Residual Voltage | NPN: ≤ 1 V, PNP: ≤ 2.5 V |
| Protection Rating | IP40 |
| Ambient Temperature | −10 to +50 °C |
| Mounting | DIN rail / Panel |
| Weight (Packaged) | ≈ 120 g |
Applications
Small object detection
Electronics and PCB assembly
Packaging and labeling machines
Conveyor part detection
Semiconductor handling
High-speed automation equipment
What’s in the Box?
Autonics BF4R Fiber Optic Amplifier
Mounting bracket
Bolt & nut set (×2)
Instruction manual
FAQs
Q1. Does BF4R work without fiber optic units?
No. BF4R requires separate Autonics fiber optic units.
Q2. What is the response time of BF4R?
It supports high-speed detection up to 0.5 ms.
Q3. Can Light ON / Dark ON be selected manually?
No manual wiring is required; Light ON / Dark ON is automatically selectable.
Q4. Is this suitable for compact installation areas?
Yes. Fiber optic sensing allows use in tight or complex spaces.
Q5. Is BF4R suitable for industrial automation?
Yes. It is designed for continuous industrial operation.