Genuine Leuze HRTR 3B/2.71 Photoelectric Sensor Made in Germany

The Leuze HRTR 3B/2.71 is a high-performance miniature photoelectric sensor from Leuze electronic's renowned Series 3B, operating on the diffuse reflection principle with active background suppression. Engineered for high-precision object detection at close and medium ranges, this sensor reliably identifies target items regardless of color, surface texture, or interfering moving background elements.

KEY FEATURES AND OPERATIONAL ADVANTAGES:
1. Superior Background Suppression: Utilizing precision focused optics, the sensor effectively ignores bright backgrounds or highly reflective objects located beyond the scanning range. The minimal black-white error (< 10%) ensures uniform and dependable detection across matte black to shiny metallic targets.
2. A²LS Active Ambient Light Suppression: Equipped with proprietary optical filtering technology, the sensor is completely impervious to interference caused by ambient industrial lighting, LED fixtures, and direct sunlight.
3. High Switching Frequency & Fast Response: Operating at a fast switching rate of 1,000 Hz (1 kHz) with a 0.5 ms response time, it is ideally suited for ultra-high-speed production lines and detecting tiny, fast-moving items.
4. Quick Alignment via brightVision®: Features a visible red LED light spot (620 nm) for pinpoint accuracy, paired with an 8-turn potentiometer for precise scanning range customization.
5. Rugged Miniature Construction: Enclosed in a compact PC-ABS plastic housing rated IP67, providing robust resistance against dust, moisture ingress, and mechanical vibration in harsh industrial automation environments.

TYPICAL INDUSTRIAL APPLICATIONS:
• High-speed bottling, filling, and packaging lines in food & pharmaceutical industries.
• Material handling, automated parcel sorting, and conveyor systems in smart logistics.
• Presence checking of electronic parts, PCBs, and semiconductor wafers.
• Position verification of tooling, molding dies, and stamped metal parts in CNC automation.

• Manufacturer: Leuze electronic
• Part Number / Model: HRTR 3B/2.71
• Series: Series 3B
• Brand Origin: Germany
• Operating Principle: Diffuse reflection principle with background suppression
• Light Source: Visible Red Light LED (620 nm)
• Optical Alignment: brightVision® technology
• Operating Range Limit: 0.005 ... 0.4 m (5 mm – 400 mm)
• Operating Range: 0.005 ... 0.2 m (5 mm – 200 mm with black-white error < 10%)
• Adjustment: 8-turn potentiometer
• Ambient Light Rejection: A²LS (Active Ambient Light Suppression)
• Supply Voltage (UB): 10 ... 30 V DC (Residual ripple 0 ... 15%)
• Open-Circuit Current: 0 ... 15 mA
• Digital Switching Outputs: 1 output
• Switching Element: Transistor NPN
• Switching Principle: Light switching
• Switching Frequency: 1,000 Hz (1 kHz)
• Response Time: 0.5 ms
• Protective Circuits: Polarity reversal protection, short-circuit protection
• Connection Type: 2,000 mm 4-wire PVC cable (conductor cross section 0.2 mm²)
• Dimensions (W x H x L): 11 mm x 32 mm x 17 mm
• Net Weight: 10 g
• Housing Material: PC-ABS Plastic (Color: Red RAL 3000)
• Lens Cover Material: PMMA Plastic
• Ingress Protection: IP 67
• Protection Class: Class III
• Operating Temperature: -30 °C ... +55 °C
• Standards & Certifications: IEC 60947-5-2, cULus Listed