LEUZE HT25C/4P-200-M12 DIFFUSE PHOTOELECTRIC SENSOR WITH BACKGROUND SUPPRESSION (PART NUMBER: 50134218)

PRODUCT OVERVIEW
The Leuze HT25C/4P-200-M12 (Part Number: 50134218) is a high-performance diffuse photoelectric sensor equipped with premium Background Suppression (BGS) technology, belonging to the versatile 25C Series engineered by Leuze electronic. Featuring an integrated transmitter-and-receiver single-body layout, this device operates completely independently without requiring a separate optical reflector or receiver block. It serves as a highly specialized automation solution designed to eliminate false triggering caused by background objects, reflective machinery panels, or moving conveyor structures behind the target products.

SUPERIOR BACKGROUND SUPPRESSION (BGS) PRINCIPLE
Unlike standard diffuse reflection sensors that are easily deceived by high-reflectivity objects located further away, the HT25C/4P-200-M12 possesses the unique optical ability to strictly detect objects within a highly defined user-calibrated distance zone:
- The moment a target object enters the specified sensing range, the pulsed red LED light bounces back to the internal receiver array, instantly switching the sensor status to ON.
- Any background elements situated outside of the calibrated distance threshold (such as bright factory walls, glossy metal equipment frames, or passing conveyor flight chains) are completely ignored and suppressed by the internal optics, providing flawless detection data.

EXCELLENT COLOR INDEPENDENCE & MICRO-MINIMAL BLACK/WHITE ERROR
In standard industrial lines, tracking a stream of products with varying colors presents a significant challenge. This model addresses this issue with an impressive Black/White Error rating of less than 10% at distances up to 400 mm. This means whether the target object is brilliant white (90% reflectivity), neutral grey (18%), or light-absorbing matte black (6%), the sensor maintains a highly uniform detection threshold with near-zero positional deviation.

HIGH-SPEED SWITCHING PERFORMANCE & DUAL PNP OUTPUTS
- Powerful 1000 Hz Switching Frequency: Capable of executing up to 1000 state transitions per second combined with an ultra-short response time of just 0.5 ms. These characteristics make it a prime candidate for fast-moving conveyor item counting, high-speed label applicator verification, and responsive automated packaging machinery.
- Simultaneous Dual Independent PNP Outputs: Simplifies system configuration by providing Output 1 pre-configured for Light Switching mode (ON when object is detected) and Output 2 for Dark Switching mode (ON when no object is present). Controls engineers can route the preferred wire straight to the PLC input card without complex software inversion.

CONVENIENT PIGTAIL CONNECTION & RUGGEDIZED DESIGN
- Highly Flexible Pigtail Interface: Employs a durable 200 mm PUR pigtail cable terminated with a standard M12 4-pin A-coded male connector. This layout dampens mechanical joint stresses and enables rapid plug-and-play sensor replacement. The compact, lightweight 33 g ABS housing features secure M4 through-hole fastening options.
- Dual Washdown IP67 and IP69K Certification: Guarantees absolute hermetic insulation against fine particulate dust and intense high-pressure industrial hot-water spraydowns. Capable of continuous operation in severe deep-freeze environments down to -40°C up to high-ambient conditions of +60°C, rendering it ideal for cold chain logistics and food-grade clean rooms.

OPTICAL & MEASUREMENT SPECIFICATIONS
- Operating Principle: Diffuse reflection with background suppression (BGS)
- Light Source: Red LED (Pulsed Light for premium ambient illumination immunity)
- Light Wavelength: 640 nm
- Maximum Operating Sensing Range: 1.2 m
- Distance Configuration Dải cài đặt: 50 mm to 1200 mm
- Sensing Distance per Color Profile (Standard Object):
  + White Object (90% reflection): 0 m – 1.2 m
  + Grey Object (18% reflection): 5 mm – 750 mm
  + Black Object (6% reflection): 5 mm – 650 mm
- Color Sensitivity Deviation (Black/White Error): < 10% at a working distance of 400 mm

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: Light Switching (Triggers when an object is detected)
  + Output 2: Dark Switching (Triggers when the light path is clear/no object)
- Switching Frequency: 1000 Hz
- Response Time: 0.5 ms
- Delay Before System Availability: 300 ms

CONNECTION INTERFACE & FIELD ADJUSTMENT
- Electrical Connection Type: 200 mm PUR pigtail cable with an M12 Male standard connector, 4-pin layout, A-coded mechanical alignment.
- Distance Calibration Mechanism: Multiturn Potentiometer providing millimetric adjustment accuracy for background suppression zones on-site.
- Operational LED Indicators: Features 2 high-visibility LEDs including a green Power LED and a yellow Sensor Status LED.

MECHANICAL, ENVIRONMENTAL, & QUALITY RATINGS
- Physical Housing Dimensions (W × H × L): 15 mm × 42.7 mm × 30 mm
- Net Device Weight: 33 g
- Construction Materials: Durable ABS plastic body (Red), optical-grade plastic lens window
- Fixing Method: Secure through-hole mounting utilizing M4 structural bolts
- Ingress Protection Rating: IP67 and IP69K (Washdown certified)
- Ambient Operating Temperature: -40°C to +60°C
- Ambient Storage Temperature: -40°C to +70°C
- Circuit Protection Array: Polarity reversal protection, short-circuit output protection, transient overvoltage surge immunity.
- Compliance Certifications: cULus, IEC 60947-5-2, Protection Class III, ECOLAB Compatible (Sanitation agent safe).