Overview & Technology:
The Leuze PRK46C.D/48-M12 Polarized Retro-Reflective Photoelectric Sensor (Part no. 50127029) belongs to the new-generation Series 46C product line engineered by Leuze electronic GmbH + Co. KG (Germany). Specifically tailored with specialized optical algorithms, this sensor reliably detects shiny stretch-wrapped pallets and depolarizing transparent foils—overcoming typical sensing challenges where standard optical sensors suffer from false triggers or optical beam penetration.

Key Features & Highlights:
• Dedicated Stretch-Wrap Detection (.D Version): Eliminates false switching caused by chaotic multi-directional reflections and optical scattering off glossy stretch films.
• Extended Operating Envelope: Provides a guaranteed operating distance of 0.1 m to 16 m with an operating range limit up to 20 m (using standard Leuze TK/TKS 100x100 reflectors), effortlessly covering wide roller conveyor spans.
• Integrated Activation Input: Enables the host PLC system to perform automated diagnostic self-tests on the sensor prior to starting conveyor cycles.
• 500 Hz Switching Frequency (1 ms Response Time): Ensures real-time part capture on high-speed automated packaging and conveying lines.
• Dual Diagnostic LED Display: 2 high-visibility LEDs indicate power status, alignment reserve, and output switching state for intuitive setup and rapid troubleshooting.

Durability & Heavy-Duty Construction:
Encased in a robust red PC-PBT plastic housing with scratch-resistant PMMA optics, the unit is certified to IP67 and IP69K ingress protection ratings and conforms to ECOLAB chemical washdown standards. With an ambient operating temperature range from -40°C to +60°C, it performs reliably in heavy washdown zones and cold-storage logistics facilities.

Practical Value for QA/QC:
Deploying the Leuze PRK46C.D/48-M12 sensor prevents costly pallet conveying interruptions, ensures seamless operation for robotic palletizers and automated storage systems (AS/RS), and minimizes overall plant maintenance overhead.

• Manufacturer: Leuze electronic GmbH + Co. KG
• Product Category: Polarized Retro-Reflective Photoelectric Sensor for Stretch-Wrapped Objects
• Model Code: PRK46C.D/48-M12
• Part Number: 50127029
• Series: Series 46C
• Country of Origin: Germany
• Operating Principle: Retro-reflective reflection principle with specialized polarization
• Special Application: Detection of stretch-wrapped pallets and depolarizing foils
• Light Source: Visible Red LED (~630 nm, pulsed)
• Guaranteed Operating Range: 0.1 ... 16 m (with TKS 100x100 reflector)
• Operating Range Limit: 0.1 ... 20 m
• Supply Voltage: 10 ... 30 V DC (including residual ripple)
• Open-Circuit Current: 0 ... 20 mA
• Special Function: 1 Activation input for self-diagnostics
• Digital Output Type: Transistor PNP (Light switching)
• Maximum Output Current: 100 mA
• Switching Frequency: 500 Hz
• Response Time: 1 ms
• Connection Interface: M12 circular connector, 4-pin (A-coded)
• Ingress Protection: IP67 / IP69K (High-pressure washdown resistant)
• Certifications: cULus, IEC 60947-5-2, ECOLAB chemical compatibility
• Housing Material: Heavy-duty PC-PBT plastic with PMMA optical window
• Operating Temperature Range: -40°C to +60°C
• Storage Temperature Range: -40°C to +70°C