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Photoelectric Retro-Reflective Sensor WL34-B440 | Dual Lens System | IP67 Rated | 0.03m to 22m Sensing Range | by SICK
The Photoelectric Retro-Reflective Sensor WL34-B440 is designed for industrial automation, featuring a dual lens system for precise object detection at distances from 0.03m to 22m. With selectable light and dark switching modes, a high switching frequency of 1,000 Hz, and an IP67 enclosure rating, this sensor is perfect for safety monitoring in manufacturing and material handling applications.
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Alternatively Known As: Photoelectric sensor, Retro-reflective sensor, Optical sensor, Proximity sensor, Industrial photo sensor
Technical Specifications
- Functional principle: Photoelectric retro-reflective sensor with dual lens system
- Sensing range: 0.03 m to 22 m
- Light source: Visible red LED, wavelength 660 nm
- Supply voltage: 10 V DC to 30 V DC
- Current consumption: 50 mA
- Switching output: NPN and PNP selectable
- Switching mode: Light switching and dark switching selectable
- Output current max: ≤ 100 mA
- Response time: ≤ 500 µs
- Switching frequency: 1,000 Hz
- Time functions: Adjustable off delay and switch-on delay (0.5 s to 10 s)
- Connection type: Male M12, 4-pin connector
- Protection class: II
- Enclosure rating: IP67
- Operating temperature: –40 °C to +60 °C
- Housing material: Plastic, ABS
- Weight: 140 g
- Dimensions (H x L x W): 92mm x 70mm x 27mm
- Weight: 0.14 kg
Key Features
- Photoelectric retro-reflective sensor with dual lens system for minimum distance to reflector
- Visible red light LED with wavelength of 660 nm
- Sensing range from 0.03 m up to 22 m
- Selectable switching modes: light switching and dark switching
- Adjustable time delay functions with off delay and switch-on delay
- High switching frequency of 1,000 Hz and fast response time ≤ 500 µs
- Robust plastic ABS housing with IP67 enclosure rating for dust and water protection
- Wide ambient operating temperature range from –40 °C to +60 °C
- Polarisation filter included for improved detection reliability
Professional Installation Requirements
- Installation should be performed by a qualified electrician or technician familiar with photoelectric sensor systems to ensure proper setup and compliance with electrical standards.
Applications
- Industrial automation for object detection
- Safety and monitoring in manufacturing processes
- Material handling and conveyor systems
Standards & Compliance
- AS/NZS 3000 – Wiring Rules (Electrical Installation)
Environmental Benefits
- Energy-efficient LED light source reduces power consumption
- Long service life minimizes waste and replacement frequency
- Robust design reduces environmental impact through durability
Warranty Information
Standard manufacturer warranty applies; please refer to SICK's official warranty policy for details.
Available Now
The SICK WL34-B440 Photoelectric Retro-Reflective Sensor is available for immediate purchase, ideal for industrial automation and safety monitoring applications.
