The Leuze HT25C/4P-200-M12 (Part Number: 50134218) is a premium long-range diffuse reflection photoelectric sensor with active background suppression from Leuze electronic's advanced Series 25C (Germany). Housed in a rugged cubic enclosure, this sensor delivers exceptional optical detection reliability with an extended scanning range of up to 1,200 mm (1.2 m), serving as a direct and enhanced successor to legacy models such as the HRTR 25B series.

KEY PRODUCT FEATURES AND OPERATIONAL ADVANTAGES:
1. Superior Long-Range Background Suppression (Up to 1.2 m):
Utilizing high-precision optical triangulation, the sensor provides reliable detection of distant objects across the 0 to 1.2 m span while effectively suppressing interference from bright reflective metallic surfaces, machine structures, or moving background elements.
2. Low Black-White Optical Deviation:
Maintains a minimal black-white error (< 10% up to 400 mm), ensuring consistent and stable detection across objects with varying surface reflectivities—from matte black rubber (6%) and gray surfaces (18%) to high-gloss white targets (90%)—without requiring sensitivity re-calibration.
3. Active Ambient Light Suppression (A²LS):
Equipped with Leuze's proprietary A²LS technology, the optical receiver is entirely immune to extraneous interference caused by factory ambient illumination, high-frequency LED shop lights, and direct solar exposure.
4. High-Speed Dual PNP Antivalent Outputs (/4P):
Features two complementary PNP transistor outputs (1x Light-switching and 1x Dark-switching). With an ultra-fast switching frequency of 1,000 Hz and a response time of just 0.33 ms, it easily manages high-speed automated sorting and tracking applications.
5. Oil-Resistant PUR Pigtail with M12 Connector:
Equipped with a 200 mm flexible PUR cable terminating in a standard 4-pin M12 male connector (A-coded), ensuring vibration-proof mechanical connection, clean cable management, and quick plug-and-play installation.
6. Heavy-Duty Industrial Construction – IP67, IP69K & ECOLAB Certified:
Constructed with durable ABS engineering plastics and reinforced metal threaded M4 sleeves, achieving IP66, IP67, and IP69K ingress protection ratings (resisting high-pressure and high-temperature steam washdowns). ECOLAB certified for chemical resistance in food and beverage processing plants.

TYPICAL INDUSTRIAL APPLICATIONS:
• Smart Logistics & Material Handling: Wooden pallet detection, corrugated carton box tracking, and parcel positioning on automated high-speed conveyor systems.
• Packaging & Bottling Lines: Shrink-wrap roll monitoring, carton packaging presence verification, and palletizer infeed detection.
• Automotive & Metal Fabrication: Presence verification of car chassis components, stamped sheet metals, engine blocks, and large tooling fixtures.
• Food & Beverage Processing: Reliable operation at end-of-line packaging areas subjected to regular high-pressure CIP washdowns.

• Manufacturer: Leuze electronic
• Part Number / Model: HT25C/4P-200-M12
• Order Number (Part no.): 50134218
• Series: Series 25C (Cubic design)
• Brand Origin: Germany
• Operating Principle: Diffuse reflection principle with background suppression
• Light Source: Visible Red LED (640 nm)
• Black-White Optical Error: < 10% (up to 400 mm)
• Guaranteed Operating Range (White 90%): 0 ... 1.2 m (0 – 1,200 mm)
• Guaranteed Operating Range (Gray 18%): 0.005 ... 0.75 m (5 mm – 750 mm)
• Guaranteed Operating Range (Black 6%): 0.005 ... 0.65 m (5 mm – 650 mm)
• Operating Range Limit: 0 ... 1.2 m
• Adjustment Range: 50 ... 1,200 mm (via Rotary Potentiometer)
• Ambient Light Protection: A²LS (Active Ambient Light Suppression)
• Supply Voltage (UB): 10 ... 30 V DC (Residual ripple 0 ... 15%)
• Open-Circuit Current: 0 ... 20 mA
• Digital Switching Outputs: 2 independent outputs (Antivalent)
• Switching Output 1: Transistor PNP, Light switching
• Switching Output 2: Transistor PNP, Dark switching
• Max Switching Frequency: 1,000 Hz (1 kHz)
• Response Time: 0.33 ms
• Readiness Delay: 300 ms
• Protective Circuits: Polarity reversal protection, short-circuit protection
• Status Indicators: All-round visible LEDs (Power and Switching Status)
• Connection: 200 mm PUR cable with M12 connector, 4-pin male (A-coded)
• Housing Dimensions (W x H x L): 15 mm x 42.7 mm x 30 mm
• Net Weight: 36 g
• Mounting Type: Through-hole mounting with integrated M4 thread (Recommended torque: 1.4 N·m)
• Housing Material: ABS Plastic / Diecast zinc reinforced
• Lens Cover Material: Optical PMMA Plastic
• Ingress Protection: IP 66, IP 67, IP 69K
• Protection Class: Class III
• Chemical Resistance Certification: ECOLAB
• Operating Temperature Range: -40 °C ... +60 °C
• Storage Temperature Range: -40 °C ... +70 °C
• Standards & Certifications: IEC 60947-5-2, cULus Listed