The Leuze HRTR 55/66,200-S12 (Global Part Number: 50107492) diffuse reflection sensor with background suppression belongs to the premium Series 55 engineered by Leuze (Germany) – a world-renowned pioneer in high-precision optoelectronic sensing and industrial safety automation. Specifically developed according to rigorous Wash-Down sanitary criteria, this sensor is tailor-made for applications requiring the highest hygienic standards, such as food & beverage processing, pharmaceuticals, chemical manufacturing, and sterile cleanrooms.

A major architectural highlight of the Leuze HRTR 55/66,200-S12 is its robust, all-metal housing constructed entirely from AISI 316L (V4A) stainless steel with smooth, gap-free surfaces that prevent bacterial retention and fluid accumulation. The optical window is made of durable engineering plastic coated with a scratch-resistant Indium protective layer to prevent diffuse light scattering. Rated to dual IP67 and IP69K ingress protection classes and rigorously tested under ECOLAB and CleanProof+ standards, the device reliably withstands heavy-duty high-pressure washdown procedures using hot water steam and aggressive chemical disinfectants.

In terms of optical excellence, the sensor utilizes the diffuse reflection triangulation principle with powerful background suppression (BGS), backed by a 660 nm visible red LED and Active Ambient Light Suppression technology. It ensures pinpoint object recognition across shiny, high-gloss materials, complex textured surfaces, and dark workpieces, entirely unaffected by adjacent reflective backgrounds. The guaranteed operating range spans from 5 mm to 400 mm, with precise scanning range calibration achieved via an integrated 8-turn multiturn potentiometer.

The electronic architecture of the HRTR 55/66,200-S12 delivers an exceptional 1,000 Hz switching frequency with a rapid 0.5 ms response time, making it ideal for ultra-high-speed bottling, sorting, and packaging machines. It features two independent Push-Pull transistor switching outputs (fully adaptable to both PNP and NPN control architectures) and incorporates full short-circuit and polarity reversal protection. Its 200 mm flexible PUR cable equipped with a 4-pin M12 stainless steel connector ensures seamless, leak-tight integration into automated machine frames.

• Brand: Leuze (Germany)
• Product Series: Series 55 (Wash-Down Design)
• Part Number: HRTR 55/66,200-S12 (50107492)
• Operating Principle: Diffuse reflection principle with background suppression (BGS)
• Special Design: All stainless steel housing, Wash-Down hygienic design
• Light Source: Visible Red LED, pulsed transmission
• Wavelength: 660 nm
• LED Group: Group 1 (acc. to EN 62471)
• Light Spot Geometry: Round
• Operating Range (White 90%): 0.005 ... 0.4 m (5 ... 400 mm)
• Operating Range (Gray 18%): 0.01 ... 0.3 m (10 ... 300 mm)
• Operating Range (Black 6%): 0.015 ... 0.2 m (15 ... 200 mm)
• Operating Range Limit: 0.005 ... 0.4 m
• Operating Supply Voltage (UB): 10 ... 30 V DC (incl. residual ripple 0 ... 15%)
• Open-Circuit Current: 0 ... 18 mA
• Number of Digital Outputs: 2 outputs
• Switching Element: Push-Pull Transistors
• Switching Principles:
  - Output 1: Light switching (PNP) / Dark switching (NPN)
  - Output 2: Dark switching (PNP) / Light switching (NPN)
• Maximum Output Load Current: 100 mA
• Switching Frequency: 1,000 Hz
• Response Time: 0.5 ms
• Readiness Delay: 300 ms
• Protective Circuits: Short-circuit protection & Polarity reversal protection
• Sensitivity Adjustment: 8-turn multiturn potentiometer
• Display Indicators: 2 status LEDs
• Electrical Connection: 200 mm PUR cable with M12 4-pin male stainless steel connector (A-coded)
• Housing Design: Miniature Cubic
• Housing Dimensions (W x H x L): 14 mm x 35.5 mm x 25 mm
• Housing Material: Stainless steel AISI 316L (V4A)
• Lens Cover Material: Plastic with scratch-resistant Indium protective coating
• Net Weight: 60 g
• Degree of Protection: IP67, IP69K
• Material Compatibility: ECOLAB, CleanProof+ certified
• Protection Class: Class III
• Standards & Certifications: cULus, IEC 60947-5-2
• Ambient Operating Temperature: -30 °C to +55 °C
• Storage Temperature: -30 °C to +55 °C