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- Leuze FT318B.3/4P-M12 Diffuse Sensor Leuze FT318B.3/4P-M12 Diffuse Sensor












Leuze FT318B.3/4P-M12 Diffuse Sensor
- Brand : Leuze
- Supply Voltage : 10 – 30 V, DC
- Open-circuit current : 0 … 20 mA
- Switching element : Transistor, PNP
- Type of connection : Connector
- Warranty : 12 Months
- Description
- Specifications
- Shipping & Returns
- Reviews
Leuze FT318B.3/4P-M12 Diffuse Sensor
The Leuze FT318B.3/4P-M12 Diffuse Sensor, part number 50122554, belongs to the 318B series and operates on the diffuse reflection principle.Its guaranteed operating range is specified for various surface colors, ranging from 0.001 to 0.215 meters for white, 0.001 to 0.19 meters for gray at 50%, 0.003 to 0.15 meters for gray at 18%, and 0.003 to 0.125 meters for black.
The Leuze FT318B.3/4P-M12 Energetic Diffuse Sensor is equipped with a red LED light source emitting at a wavelength of 620 nm, the sensor ensures accurate detection.The sensor operates on a supply voltage range of 10 to 30 V DC, inclusive of residual ripple up to 15%. The switching elements are PNP transistors, utilizing both light and dark switching principles, with a switching frequency of 500 Hz.
The Leuze FT318B.3/4P-M12 Energetic Diffuse Sensor functions to provide signal output and voltage supply, featuring a 4-pin male connector with A-coded encoding and M12 thread size. The sensor's housing, made of ABS plastic, has a diameter of 18 mm and length of 46 mm. Operational controls include a teach button, and the sensor is equipped with an LED display. With an operational temperature range of -40 to 60 °C and a storage temperature range of -40 to 70 °C, it ensures reliable operation even in harsh environmental conditions.
Our engineers actively inputted all the required details of this item in accordance with the datasheet. Nevertheless, it’s imperative to recognize that errors may arise during this process. Despite our sincere efforts, it’s important to remain cautious. Nonetheless, inaccuracies can still occur. All trademarks and trade names used on our site are the property of their respective owners.
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Product Number | FT318B.3/4P-M12 |
Part Number | 50122554 |
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% | 0.003 ... 0.125 m |
Operating Range Limit | Typical operating range |
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% | 0.001 ... 0.16 m |
Light Source | LED, Red |
Wavelength | 620 nm |
LED Group | Exempt group (in acc. with EN 62471) |
Supply Voltage UB | 10 ... 30 V DC (Incl. residual ripple) |
Residual Ripple | 0 ... 15 % from UB |
Open-Circuit Current | 0 ... 20 mA |
Switching Element | Transistor, PNP |
Switching Principle | Light switching / Dark switching |
Switching Frequency | 500 Hz |
Response Time | 1 ms |
Readiness Delay | 300 ms |
Function | Signal OUT, Voltage supply |
Type of Connection | Connector |
Thread Size (Connector) | M12 |
Connector Type | Male |
No. of Pins | 4-pin |
Encoding | A-coded |
Thread Size (Housing) | M18 x 1 mm |
Dimension (Ø x L) | 18 mm x 46 mm |
Housing Material | Plastic |
Plastic Housing | ABS |
Lens Cover Material | Plastic |
Housing Color | Black / Red |
Type of Display | LED |
Operational Controls | Teach button |
Ambient Temperature, Operation | -40 ... 60 °C |
Ambient Temperature, Storage | -40 ... 70 °C |
Degree of Protection | IP 67 |
Protection Class | III |
Certifications | c UL US |
Standards Applied | IEC 60947-5-2 |
Shipping
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We ship across India through reliable courier partners such as BlueDart, DTDC, Delhivery, Shree Maruti, Anjani, Mahaveer, and Trackon.
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Based on our experience, BlueDart and DTDC provide the best service, ensuring faster and safer deliveries.
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Dispatch Time: Orders are usually processed and dispatched within 1–2 business days after confirmation.
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Delivery Time: Standard delivery within 3–5 business days, depending on your location. Remote areas may take slightly longer.
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Tracking: Once your order is shipped, a tracking ID will be shared via email/SMS so you can monitor your package in real-time.
Returns & Refunds
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We offer a 15-day return policy for eligible products.
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Items must be unused, in original packaging, and with all accessories/manuals intact.
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Returns are accepted only in cases of manufacturing defects, wrong product delivered, or transit damage.
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Refunds will be processed to your original payment method within 7–10 working days after inspection of the returned product.
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For international buyers, return shipping costs must be borne by the customer unless the product is faulty or wrongly supplied.