Autonics BF4R Fiber Optic Sensor
The Autonics BF4R Fiber Optic Sensor offers Red LED(660nm) light source, Frequency 1: Max. 0.5ms, Frequency 2: Max. 0.7ms response time, 12-24VDC power supply, Light ON/Dark ON(set by ON/OFF button) operation mode, NPN open collector control output. Manufactured by Autonics under the Autonics Fiber Optic Sensor category, this model belongs to the Autonics BF3 Series.
| Brand | Autonics |
| Product Type | Digital Display Fiber Optic Amplifiers |
| Model Number | BF4R |
Autonics BF4R Fiber Optic Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Type | Standard type |
| Light source | Red LED(660nm) |
| Response time | Frequency 1: Max. 0.5ms, Frequency 2: Max. 0.7ms |
| Power supply | 12-24VDC |
| Current consumption | Max. 45mA |
| Operation mode | Light ON/Dark ON(set by ON/OFF button) |
| Control output | NPN open collector |
| Timer function | OFF Delay(40ms) |
| Self-diagnosis output | ON state under unstable sensing(when the target stays for 300ms in unstable level),ON state when control output is short-circuited•Load voltage: Max. 30VDC @(=)•Load current: Max. 50mA•Residual voltage - Max. 1V(load current: 50mA), Ma |
| Cable specification | Ø4mm, 4-wire, 2m(AWG22, core diameter: 0.08mm, number of cores: 60, insulator out diameter: Ø1.25mm) |
| Input of stop transmission function | - |
| External synchronization function | - |
| Sensitivity adjustment | Manual |
| Environment_Ambient illumination | Sunlight: Max. 11,000lx, Incandescent lamp: Max. 3,000lx (received illumination) |
| Environment_Ambient temperature | -10 to 50℃, storage: -20 to 70℃ |
| Environment_Ambient humidity | 35 to 85% RH, storage: 35 to 85% RH |
| Material | Case: Heat-resistance acrylonitrile butadiene styrene, Cover: Polycarbonate |
| Accessories | Fixing bracket, Bolts, Nuts |
| Weight | Approx. 120g(approx. 65g) |
The Autonics BF4R Digital Display Fiber Optic Amplifiers use a Red LED (660nm) light source and provide two ultra-fast response modes — 0.5 ms and 0.7 ms — ensuring accurate detection for precision automation tasks. Operating on 12–24 VDC ±10% with just 45 mA consumption, it delivers stable, energy-efficient performance for continuous use.
This model supports Light ON/Dark ON operation via a simple ON/OFF button and features an NPN open collector output for seamless integration with PLCs and automation systems. A manual sensitivity adjustment dial allows engineers to fine-tune detection on-site, while a built-in self-diagnosis output alerts users to unstable sensing or short-circuit conditions — reducing troubleshooting time and minimizing downtime.
Housed in a heat-resistant ABS and polycarbonate enclosure, the Autonics BF4R Digital Display Fiber Optic Amplifiers operate reliably in temperatures from -10°C to 50°C and ambient light up to 11,000 lx. With an IP-rated, rugged build and included mounting accessories, it offers long service life and dependable performance, backed by the quality of Autonics Fiber Optic Sensors and the trusted Autonics Sensors & Controllers range.
The Autonics BF4R Digital Display Fiber Optic Amplifiers are ideal for small-part detection, label alignment, and position verification in electronics assembly, packaging, and pharmaceutical automation. The digital display provides real-time feedback, enabling quick setup and fine adjustments. Its fast response time makes it suitable for high-speed conveyors, robotic pick-and-place systems, and inspection equipment. Maintenance teams value its easy installation and stability under varying lighting conditions, while OEMs rely on its accuracy and reliability for long-term, high-cycle operations.
