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Photoelectric Retro-Reflective Sensor WL12G-3O2431 | 4m Sensing Range | Polarisation Filter | Fast Response Time | by SICK
The Photoelectric Retro-Reflective Sensor WL12G-3O2431 is designed for industrial automation, featuring a sensing range of up to 4 meters without a reflector and a polarisation filter for improved detection of transparent objects. With a robust metal housing and IP66/IP67/IP69K protection, this sensor is built to perform in harsh environments, making it ideal for manufacturing and object detection applications.
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Alternatively Known As: Photoelectric sensor, Retro-reflective sensor, SICK WL12G sensor, Transparent object sensor, Industrial photo sensor
Technical Specifications
- Functional principle: Photoelectric retro-reflective sensor without reflector minimum distance
- Sensing range max.: 0 m to 4 m
- Polarisation filter: Yes
- Light source: LED, visible red light, wavelength 640 nm
- Light spot size: Ø 25 mm at 1.5 m distance
- Adjustment: Potentiometer with 11 turns
- Angle of dispersion: Approx. 1.5°
- Supply voltage: 10 V DC to 30 V DC
- Ripple: < 5 V pp
- Current consumption: 30 mA
- Protection class: III
- Output type: PNP digital output, light/dark switching selectable
- Output current max: ≤ 100 mA
- Response time: ≤ 330 µs
- Switching frequency: 1,500 Hz
- Circuit protection: Types A, C, D
- Housing material: Metal zinc diecast
- Front screen material: Plastic PMMA
- Connection: Male M12, 4-pin connector
- Enclosure rating: IP66, IP67, IP69K
- Operating temperature: -40 °C to +60 °C
- Storage temperature: -40 °C to +75 °C
- Dimensions (H x L x W): 49mm x 42mm x 16mm
- Weight: 0.12 kg
Key Features
- Photoelectric retro-reflective sensor with autocollimation/coaxial optics
- Sensing range up to 4 meters without reflector
- Polarisation filter included for improved detection
- Visible red LED light source with 640 nm wavelength
- Adjustable potentiometer with 11 turns for sensitivity tuning
- Detects transparent objects effectively
- High switching frequency of 1,500 Hz and fast response time ≤ 330 µs
- Robust metal zinc diecast housing with plastic PMMA front screen
- Protection class III with IP66, IP67, and IP69K enclosure ratings
- Includes 2 clamps BEF-KH-W12 with screws for mounting
Professional Installation Requirements
- Installation by a qualified electrician or trained technician is recommended to ensure proper wiring and sensor alignment for optimal performance.
Applications
- Industrial automation for object detection
- Detecting transparent objects in manufacturing
- Use in harsh environments requiring IP66/IP67/IP69K protection
Standards & Compliance
- AS/NZS 3000 – Wiring Rules (Electrical Installation)
Environmental Benefits
- Energy-efficient LED light source reduces power consumption
- Durable construction minimizes waste and replacement frequency
Warranty Information
Standard manufacturer warranty applies; please refer to SICK for specific warranty terms.
Available Now
The SICK WL12G-3O2431 Photoelectric Retro-Reflective Sensor is available for immediate purchase, ideal for industrial automation and object detection applications.
