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Photoelectric Retro-Reflective Sensor | 4m Sensing Range | IP66/IP67/IP69K Rated | by SICK
The Photoelectric Retro-Reflective Sensor is designed for industrial automation, featuring a sensing range of up to 4 meters without a reflector and selectable light/dark switching modes. With robust IP66/IP67/IP69K protection, it excels in harsh environments, making it ideal for detecting transparent objects in manufacturing and ensuring reliable performance in challenging conditions.
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Alternatively Known As: Photoelectric sensor, Retro-reflective sensor, Optical sensor, SICK WL12G sensor
Technical Specifications
- Supply voltage: 10 V DC to 30 V DC
- Current consumption: 30 mA
- Output type: PNP and NPN digital outputs
- Switching modes: Light switching and dark switching selectable
- Response time: ≤ 330 µs
- Switching frequency: 1500 Hz
- Protection class: III
- Circuit protection types: A, C, D
- Light spot size: Ø 25 mm at 1.5 m distance
- Angle of dispersion: Approx. 1.5°
- MTTFD: 823 years
- Connection: M12, 5-pin plug
- 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 for improved detection
- Visible red LED light source with 640 nm wavelength
- Potentiometer adjustment with 11 turns
- Selectable light/dark switching modes via control cable
- High switching frequency of 1500 Hz
- Robust metal zinc diecast housing with plastic PMMA front screen
- IP66, IP67, and IP69K rated for harsh environments
- Operating temperature range from -40°C to +60°C
Professional Installation Requirements
- Installation by a qualified electrician or technician is recommended to ensure proper wiring and sensor alignment.
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
- Long service life reduces waste and replacement frequency
Warranty Information
Standard manufacturer warranty applies; please refer to SICK for specific warranty terms.
Available Now
The SICK WL12G-3B2531 Photoelectric Retro-Reflective Sensor is available for immediate purchase, ideal for industrial automation and object detection applications.
