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Photoelectric Retro-Reflective Sensor WL9M4 | IP66/IP67/IP69K Rated | 5m Sensing Range | 1000 Hz Switching Frequency | by SICK
The Photoelectric Retro-Reflective Sensor WL9M4 is designed for industrial automation, featuring a sensing range of up to 5 meters and a high switching frequency of 1,000 Hz. With its robust IP66/IP67/IP69K enclosure rating, this sensor is perfect for harsh environments, ensuring reliable object detection and minimal false triggers. Ideal for manufacturing lines and object detection applications, it combines durability with advanced performance.
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Alternatively Known As: Photoelectric sensor, Retro-reflective sensor, Optical sensor, SICK sensor WL9M4, Industrial photo sensor
Technical Specifications
- Supply voltage: 10 V DC to 30 V DC
- Current consumption: 30 mA
- Switching output: NPN complementary
- Output current max: ≤ 100 mA
- Switching mode: Light/dark switching
- Response time: < 0.5 ms
- Switching frequency: 1,000 Hz
- Connection type: Male M8 connector, 4-pin
- Circuit protection: Types A, B, C
- Protection class: III
- Enclosure rating: IP66, IP67, IP69K
- Operating temperature: -40°C to +60°C
- Storage temperature: -40°C to +75°C
- Light source: PinPoint LED
- Light spot size at 1.5 m: Ø 45 mm
- Wave length: 650 nm
- Dimensions (H x L x W): 49.8mm x 23.6mm x 12.2mm
- Weight: 0.1 kg
Key Features
- Photoelectric retro-reflective sensor with autocollimation/coaxial optics
- Visible red light with 650 nm wavelength using PinPoint LED
- Sensing range up to 5 meters without reflector
- Single teach-in button for easy adjustment
- Rectangular housing with M4 mounting hole
- High switching frequency of 1,000 Hz and response time under 0.5 ms
- Protection class III with IP66, IP67, and IP69K enclosure rating
- Polarizing filter included to reduce false triggers
- Wide ambient operating temperature range from -40°C to +60°C
Professional Installation Requirements
- Installation should be performed by qualified personnel familiar with photoelectric sensor wiring and safety standards to ensure proper operation and compliance.
Applications
- Industrial automation for object detection
- Small object detection in manufacturing lines
- Use in harsh environments requiring IP66/IP67/IP69K protection
Standards & Compliance
- AS/NZS 4801 – Occupational Health & Safety Management Systems
Environmental Benefits
- Low power consumption with 30 mA current draw
- Durable housing materials (VISTAL® plastic and PMMA optics) extend product life and reduce waste
- High reliability with MTTFD of 1,530 years reduces replacement frequency
Warranty Information
Standard manufacturer warranty applies; please refer to SICK for specific warranty terms.
Available Now
The SICK WL9M4-3N2232 Photoelectric Retro-Reflective Sensor is available for immediate purchase, ideal for industrial automation and object detection applications.
