Overview & Technology:
The Leuze PRK3CL1.A3/4T-200-M12 Polarized Laser Retro-Reflective Photoelectric Sensor belongs to the miniature Series 3C family engineered by Leuze electronic GmbH + Co. KG (Germany). Combining an eye-safe Laser Class 1 emitter with advanced coaxial Autocollimation optics (.A3 designation), the sensor achieves zero-deadzone detection (starting directly from 0 m at the lens face) and reliably senses sub-millimeter components with extreme repeatability.

Key Features & Highlights:
• Microscopic Laser Class 1 Light Spot: Generates a finely focused red laser beam, allowing high-precision detection of small gaps, electronic semiconductor pins, threads, medical needles, and thin sheet edges.
• Coaxial Autocollimation Optics (.A3): Transmitting and receiving channels share the identical optical axis, completely eliminating near-field blind zones from 0 m up to the maximum operating range.
• Intuitive Teach-in Configuration (/4T): Enables rapid and precise sensitivity calibration via a simple teach button, with selectable Light-on/Dark-on switching modes.
• Ultra-Fast 3000 Hz Switching Frequency (Response Time ≤ 0.17 ms): Effortlessly captures high-speed moving targets on automated packaging machines, blister pack checkers, and robotic assembly arms.
• Flexible Pigtail Connection (-200-M12): 200 mm cable pigtail with integrated M12 4-pin connector reduces bending stress in tight spaces and on moving robotic arms.

Durability & Heavy-Duty Construction:
Encased in a robust, compact PC-ABS housing with scratch-resistant PMMA optics, the sensor is certified to IP67 and IP69K ingress protection ratings and conforms to ECOLAB chemical washdown standards. It operates reliably across ambient temperatures from -40°C to +55°C.

Practical Value for QA/QC:
Deploying the Leuze PRK3CL1.A3/4T-200-M12 sensor prevents component miss-picks in micro-electronic assembly, ensures sub-millimeter edge alignment precision, reduces defect rates, and accelerates automated machine cycle times.

• Manufacturer: Leuze electronic GmbH + Co. KG
• Product Category: Polarized Laser Retro-Reflective Sensor with Autocollimation
• Model Code: PRK3CL1.A3/4T-200-M12 (PRK 3C L1.A3/4T-200-M12)
• Series: Series 3C (Miniature)
• Country of Origin: Germany
• Light Source: Visible Red Laser (~655 nm, pulsed)
• Laser Class: Laser Class 1 (in accordance with IEC 60825-1)
• Optical Principle: Polarized retro-reflective with single-lens Autocollimation (zero blind zone)
• Operating Range (Sensing Distance): 0 ... 3 m (when paired with standard Leuze micro-reflectors)
• Beam Spot Dimension: Highly focused microscopic spot
• Supply Voltage: 10 ... 30 V DC (including residual ripple)
• Open-Circuit Current: ≤ 20 mA
• Configuration Method: Integrated Teach-in pushbutton
• Digital Output Type: Transistor PNP (Light-on / Dark-on selectable)
• Switching Frequency: 3000 Hz
• Response Time: ≤ 0.17 ms
• Connection Interface: 200 mm cable with 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-ABS plastic with PMMA optical window
• Operating Temperature Range: -40°C to +55°C
• Storage Temperature Range: -40°C to +70°C