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Leuze FT318BI.3/4P Diffuse Sensor
- Brand: Leuze
- Part No.: 50126609
- Operating Principle: Diffuse reflection principle
- Supply Voltage (UB): 10 ... 30 V, DC, Incl. residual ripple
- Switching Element: Transistor, PNP
- Connection Type: Cable
Note: All tax and custom duty should be pay by buyer only.
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Leuze FT318BI.3/4P Diffuse Sensor
The Leuze FT318BI.3/4P Diffuse Sensor (50126609) is a compact M18 diffuse photoelectric sensor designed for accurate object detection in industrial automation, packaging, and material handling applications. Operating on the diffuse reflection principle, it offers a guaranteed sensing range up to 215 mm on a 90% white target, with reliable detection across gray and black surfaces.Equipped with an 850 nm pulsed infrared LED, the sensor provides stable detection while minimizing interference from ambient light. The integrated Teach button enables quick sensitivity adjustment, simplifying installation and ensuring optimal performance for different target materials. Operating on a 10–30 VDC power supply, the sensor features two PNP transistor outputs, supporting both Light-ON and Dark-ON switching for flexible integration with PLCs and industrial control systems.
With a 500 Hz switching frequency and 1 ms response time, it delivers fast and dependable operation in dynamic production environments. The durable ABS plastic housing, PUR 2 m cable, and IP67 protection rating provide excellent resistance to dust, moisture, and industrial conditions. Additional features include reverse polarity protection, short-circuit protection, and a clear LED status indicator for easy diagnostics. Operating within a -40°C to +60°C temperature range, the FT318BI.3/4P offers reliable long-term performance in demanding industrial applications.
Applications
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Conveyor systems for accurate object presence detection.
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Packaging and assembly machines requiring reliable diffuse sensing.
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Material handling and warehouse automation for product positioning.
- Industrial production lines detecting components of varying surface colors.
Technical Precautions
- Operate only within the 10–30 VDC specified supply voltage range.
- Use the Teach button to optimize detection for different target materials.
- Keep the sensor lens clean to maintain accurate and stable sensing performance.
- Avoid mounting the sensor near highly reflective surfaces and ensure the IP67 housing and cable remain properly protected during operation.
While our engineers carefully upload product details based on official datasheets, occasional errors may still occur. We encourage users to verify specifications as needed for complete accuracy.
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Note : All tax and custom duty should be pay by buyer only.
Note: All trademarks and trade names used are the property of their respective owners.
| Brand | LEUZE |
| Product Number | FT318BI.3/4P |
| Part Number | 50126609 |
| Series | 318B |
| Operating principle | Diffuse reflection principle |
Operating range | Guaranteed operating range |
| Operating range, white 90% | 0.001 ... 0.215 m |
| Operating range, gray 50% | 0.001 ... 0.19 m |
| Operating range, gray 18% | 0.003 ... 0.15 m |
| Operating range, black 6% | 0.005 ... 0.125 m |
| Operating range limit, white 90% | 0.001 ... 0.28 m |
| Operating range limit, gray 50% | 0.001 ... 0.245 m |
| Operating range limit, gray 18% | 0.003 ... 0.19 m |
| Operating range limit, black 6% | 0.005 ... 0.16 m |
| Operating range limit | Typical operating range |
| Light source | LED, Infrared |
| Wavelength | 850 nm |
| Transmitted-signal shape | Pulsed |
| LED group | Exempt group (in acc. with EN 62471) |
Protective circuit | Polarity reversal protection Short circuit protected |
Supply voltage UB | 10 ... 30 V, DC, Incl. residual ripple |
| Residual ripple | 0 ... 15 %, From UB |
| Open-circuit current | 0 ... 20 mA |
Number of digital switching outputs | 2 Piece(s) |
Type | Digital switching output |
Switching element | Transistor, PNP |
| Switching principle | Light switching |
Switching element | Transistor, PNP |
| Switching principle | Dark switching |
Switching frequency | 500 Hz |
| Response time | 1 ms |
| Readiness delay | 300 ms |
Number of connections | 1 Piece(s) |
Function | Signal OUT Voltage supply |
| Type of connection | Cable |
| Cable length | 2,000 mm |
| Sheathing material | PUR |
| Cable color | Black |
| Number of conductors | 4 -wire |
| Wire cross section | 0.2 mm² |
Dimension (Ø x L) | 18 mm x 46 mm |
| Thread size | M18 x 1 mm |
| Housing material | Plastic |
| Plastic housing | ABS |
| Lens cover material | Plastic |
| Housing color | Black Red |
Type of display | LED |
| Number of LEDs | 1 Piece(s) |
| Operational controls | Teach button |
Ambient temperature, operation | -40 ... 60 °C |
| Ambient temperature, storage | -40 ... 70 °C |
Degree of protection | IP 67 |
| Country of origin | China |
Note : All tax and custom duty should be pay by buyer only.
Note: All trademarks and trade names used are the property of their respective owners.
Accuracy Disclaimer: Specifications provided are based on datasheet and are subject to change without notice. While every effort has been made to ensure accuracy, errors may occur. Users are encouraged to verify specifications with the manufacturer and consult for any specific questions or requirements.
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