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Photoelectric Proximity Sensor | Background Suppression | Adjustable Sensing Range | IO-Link Interface | by SICK
The Photoelectric Proximity Sensor WTB4SP-84161A20A00 is designed for precise object detection in industrial automation. With a sensing range from 4 mm to 500 mm and an adjustable switching threshold, it excels in environments requiring background suppression. Featuring a robust IP66/IP67 rated housing and a long LED service life of 100,000 hours, this sensor is perfect for reliable performance in challenging conditions.
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Technical Specifications
- Functional principle: Photoelectric proximity sensor with background suppression
- Sensing range: 4 mm to 500 mm, adjustable switching threshold 10 mm to 500 mm
- Recommended sensing range: 50 mm to 200 mm
- Light source: PinPoint LED, visible red light, wavelength 635 nm
- Light spot size: 4 mm at 150 mm distance
- Maximum beam dispersion: ±1.5° at 23 °C
- LED risk group: Free group according to EN 62471
- Average LED service life: 100,000 hours at 25 °C
- Smallest detectable object: 0.1 mm at 180 mm distance
- Supply voltage: 10 V DC to 30 V DC
- Current consumption: ≤ 20 mA without load at 24 V
- Digital outputs: 2 push-pull (PNP/NPN), light/dark switching
- Output current max: ≤ 100 mA
- Response time: ≤ 1000 µs
- Switching frequency: 30 Hz
- Protection class: III
- Enclosure rating: IP66 and IP67
- Operating temperature: -40 °C to +60 °C
- Storage temperature: -40 °C to +75 °C
- Shock resistance: 30 g, 11 ms
- Vibration resistance: 10 Hz to 1000 Hz, amplitude 1 mm
- Communication interface: IO-Link V1.1, COM2 (38.4 kBaud), cycle time 2.3 ms
- Material: Plastic VISTAL® housing, PMMA front screen, PVC cable
- Dimensions (H x L x W): 42mm x 19mm x 12mm
- Weight: 0.1 kg
Key Features
- Photoelectric proximity sensor with background suppression
- Sensing range from 4 mm to 500 mm, adjustable switching threshold
- PinPoint LED visible red light with 635 nm wavelength
- High precision with smallest detectable object size of 0.1 mm at 180 mm distance
- BluePilot for easy sensing range adjustment
- IO-Link V1.1 interface for sensor parameter configuration and Smart Task functions
- Dual push-pull digital outputs (PNP/NPN) with light/dark switching
- Robust plastic VISTAL® housing with IP66/IP67 protection rating
- Wide ambient operating temperature range from -40 °C to +60 °C
- Shock resistance of 30 g and vibration resistance from 10 Hz to 1000 Hz
- LED indicators for sensing range, power, IO-Link mode, and object detection status
Professional Installation Requirements
- Installation by qualified personnel is recommended to ensure proper sensor configuration and secure electrical connections, especially for IO-Link integration.
Applications
- Industrial automation for object detection
- Detection of poorly remitting and tilted objects
- Use in environments requiring precise background suppression sensing
Standards & Compliance
- AS/NZS 3000 – Wiring Rules (Electrical Installation)
Environmental Benefits
- Long LED service life of 100,000 hours reduces waste and replacement frequency
- Energy-efficient operation with low current consumption (≤ 20 mA)
- Robust design minimizes environmental impact through durability and reduced maintenance
Warranty Information
Standard manufacturer warranty applies; please refer to SICK's official warranty policy.
Available Now
The SICK WTB4SP-84161A20A00 Photoelectric Proximity Sensor is available for immediate purchase, ideal for industrial automation and precise object detection applications.
