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Fiber Optic Proximity Sensor LL3-DH04 | Heat-Resistant Up to 350°C | 1090mm Sensing Range | Stainless Steel Design | by SICK
The Fiber Optic Proximity Sensor LL3-DH04 is engineered for high-temperature environments, capable of withstanding temperatures up to 350°C. With a sensing range of 1,090 mm and a minimal object diameter detection of just 0.02 mm, this sensor is perfect for industrial automation applications. Its durable stainless steel construction ensures longevity and reliability, making it an ideal choice for proximity sensing in demanding conditions.
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Technical Specifications
- Device type: Fiber-optic cables
- Functional principle: Proximity system
- Fiber-optic head design: Threaded sleeve, Long end sleeve, Bendable sleeve, 90° deflection
- Application: Heat-resistant (≥100°C)
- Compatible fiber-optic amplifiers: WLL80, WLL180, GLL170(T)
- Sensing range max.: 1,090 mm (with WLL80 at 8 ms)
- Minimal object diameter: 0.02 mm
- Angle of dispersion: 60°
- Integrated lens: No
- Compatibility tip adapters: No
- Compatibility with infrared light: Yes
- Adapter end sleeves required: No
- Optical fiber head material: Stainless steel
- Light emission: Axial
- Thread diameter (housing): M6
- Optical fiber taper diameter: ≥ 2.8 mm
- Optical fiber taper length after 2 mm: ≥ 60 mm
- Minimum bend radius of end sleeve: 10 mm
- Fiber length: 2,000 mm
- Bending radius: 25 mm
- Dynamic flexibility (robotics): No
- Outside diameter, optical fiber cable connection: 2.2 mm
- Fiber arrangement: Multi-fiber
- Core structure: S: 380 x Ø 0.5 µm, R: 380 x Ø 0.5 µm Multi-fiber
- Sheath material: Stainless steel
- Fibers material: Glass
- Ambient operating temperature: –30 °C to +350 °C
- Dimensions (H x L x W): 60mm x 2000mm x 6mm
- Weight: 0.1 kg
Key Features
- Fiber-optic cable with threaded sleeve, long end sleeve, bendable sleeve, and 90° deflection
- Heat-resistant up to 350°C
- Sensing range up to 1,090 mm with WLL80 amplifier
- Minimal object diameter detection of 0.02 mm
- Axial light emission with 60° angle of dispersion
- Stainless steel optical fiber head and sheath
- Multi-fiber glass core structure
- Includes mounting hardware: 2 x M6 hexagon nuts and 1 x washer
Professional Installation Requirements
- Installation should be performed by qualified personnel familiar with fiber-optic sensor systems and electrical wiring standards to ensure proper setup and safety.
Applications
- Industrial automation for proximity sensing
- High-temperature environments up to 350°C
- Use with compatible fiber-optic amplifiers WLL80, WLL180, GLL170(T)
Standards & Compliance
- AS/NZS 3000 – Wiring Rules (Electrical Installation)
Environmental Benefits
- Durable stainless steel construction reduces waste through long service life
- Heat resistance minimizes need for frequent replacements in harsh environments
Warranty Information
Standard manufacturer warranty applies; please refer to SICK's official warranty policy.
Available Now
The SICK LL3-DH04 Fiber-Optic Cable Proximity Sensor is available for immediate purchase, ideal for industrial automation and high-temperature sensing applications.
