LEUZE PRK15.XD1/4P-M12 POLARIZED RETRO-REFLECTIVE PHOTOELECTRIC SENSOR (PART NUMBER: 50137503)

PRODUCT OVERVIEW
The Leuze PRK15.XD1/4P-M12 (Part Number: 50137503) is an advanced polarized retro-reflective photoelectric sensor belonging to the compact Series 15 generation by Leuze electronic. Sporting an ultra-miniaturized housing combined with robust optical performance, this device acts as the ultimate sensing solution for restricted installation spaces and automation applications requiring highly reliable object detection.

SPECIALIZED POLARIZATION FILTER TECHNOLOGY
The PRK15.XD1/4P-M12 is equipped with a premium internal optical polarization filter. This crucial feature enables the sensor to clearly differentiate between valid polarized light returning from a designated reflector and false, scattered reflections bouncing off the target object itself.
- As a result, the sensor flawlessly detects highly glossy, shiny surfaces and highly reflective transparent materials—most notably cargo pallets wrapped in PE stretch film or shrink wraps—targets that commonly trigger false readings in standard photoelectric sensors.

HIGH-SPEED MEASUREMENT PERFORMANCE
- Lightning-Fast Responsiveness: Boasting a response time of just 1 ms and a switching frequency of 500 Hz (translating to 500 discrete detections per second), the sensor easily keeps pace with high-velocity conveyor belts, rapid logistics sorting mechanisms, and modern automated packaging machinery.
- Integrated Dual Outputs: The unit simultaneously provides two independent PNP Transistor outputs. Output 1 operates in Light Switching mode (energized when the light beam is received), while Output 2 functions in Dark Switching mode (energized when the light beam is interrupted). This dual-configuration grants control engineers maximum wiring flexibility for PLC integration.

OPTIMIZED MECHANICAL DESIGN & SEVERE ENVIRONMENT RATING
- Ultra-Compact Footprint: Housed in a miniaturized plastic casing measuring only 15 × 42.7 × 30 mm and weighing a mere 15 g, the sensor can be easily mounted via its standard through-hole design into the tightest mechanical compartments.
- Rugged Washdown Resistance: The device has passed rigorous testing to achieve dual IP67 and IP69K ingress protection certifications. It is totally dust-tight, survives temporary water immersion, and completely withstands high-pressure, high-temperature industrial washdown procedures. Capable of enduring harsh freezing temperatures down to -40°C and heat up to +60°C, it is highly recommended for cold storage, food processing, and pharmaceutical applications.

OPTICAL & MEASUREMENT SPECIFICATIONS
- Operating Principle: Polarized Retro-Reflective Principle
- Emitted Light Source: Red LED (Pulsed Light for strong ambient noise immunity)
- Light Wavelength: 640 nm
- Guaranteed Operating Sensing Range: 0.05 m – 7 m (When used with a standard reflector)
- Maximum Typical Sensing Limit: 0.05 m – 9 m
- Specialized Tracking: Superior detection of high-gloss surfaces, transparent foils, and PE stretch wrap.

ELECTRICAL DATA & OUTPUT CHARACTERISTICS
- Supply Operating Voltage: 10 ... 30 VDC
- Open-Circuit Current Consumption: ≤ 20 mA
- Number of Outputs: 2 Independent PNP Transistor outputs
- Output Switching Configuration:
  + Output 1: PNP Light Switching (Triggers when light reaches the receiver)
  + Output 2: PNP Dark Switching (Triggers when the optical beam is blocked)
- Switching Frequency: 500 Hz
- Response Time: 1 ms
- System Initialization Time (Delay before availability): 300 ms

CONNECTION INTERFACE & MOUNTING
- Electrical Connection Type: Standard M12 Male Connector, 4-pin arrangement, A-Coded mechanical alignment.
- Connector Material: High-grade engineering plastic
- Standard Pin Assignment Layout:
  + Pin 1: +24VDC
  + Pin 2: Output 2 (PNP Dark Switching)
  + Pin 3: 0V
  + Pin 4: Output 1 (PNP Light Switching)
- Mounting Mechanism: Standard through-hole mounting, fully compatible with various optional mounting brackets.

MECHANICAL, ENVIRONMENTAL, & QUALITY RATINGS
- Physical Dimensions (W × H × L): 15 mm × 42.7 mm × 30 mm
- Net Device Weight: 15 g
- Ingress Protection Rating: IP67 and IP69K (Heavy washdown certified)
- Ambient Operating Temperature: -40°C to +60°C
- Ambient Storage Temperature: -40°C to +70°C
- Electrical Safety Class: Class III
- Built-In Circuit Protections: Reverse polarity protection, output short-circuit protection.
- Compliance & Safety Certifications: cULus, IEC 60947-5-2, EN 62471 (Photobiological safety).