SICK DL100-21AA2112 The Ultimate Long-Range Laser Distance Sensor for Industry 4.0

Precision at the Edge of Possibility

In the realm of industrial automation, where milliseconds determine efficiency and microns define quality, the SICK DL100-21AA2112 stands as a titan of measurement technology. This isn't just a sensor; it is a ruggedized, intelligent measurement station capable of tracking targets up to 100 meters away with sub-millimeter repeatability. Engineered for the harshest environments—from scorching steel mills to dusty logistics hubs—the DL100 Pro series combines SICK’s legendary optical expertise with cutting-edge PROFINET integration, making it the definitive solution for long-range positioning, level control, and collision avoidance.

Core Technical Specifications: Engineered for Excellence

The DL100-21AA2112 is built to deliver absolute reliability where other sensors fail.

• Measurement Principle: Laser Time-of-Flight (ToF) / Light Flight Time.
• Measurement Range: 0.15 m to 100 m (on "Diamond Grade" reflective tape).
• Resolution: Configurable (0.1 mm, 0.125 mm, 1 mm, 10 mm, 100 mm).
• Accuracy:

• Repeatability: ±0.5 mm (1σ, constant conditions).
• Absolute Accuracy: ±2 mm (typical); ±4 mm (specific range 150–180 mm).

• Response Time: Blazing fast 2 ms (response), 1 ms (measurement cycle).
• Target Speed: Capable of tracking objects moving at up to 15 m/s with acceleration ≤ 15 m/s².
• Optical Specs:

• Light Source: Red laser (visible, Class 2 per IEC 60825-1).
• Spot Size: 5 mm + (2 mm x distance in meters).

• Environmental Ruggedness:

• Protection Rating: IP65 (dust-tight and protected against water jets).
• Housing: Die-cast aluminum with PMMA window.
• Operating Temp: -20°C to +55°C (extended to +75°C with cooling jacket).
• Ambient Light Immunity: Up to 100,000 lux.

Intelligent Connectivity & Interface

The DL100-21AA2112 is not merely a data gatherer; it is a networked decision-maker.

1. Industrial Ethernet (PROFINET):
Fully integrated PROFINET support allows for seamless plug-and-play integration into modern PLC architectures. It supports 2-port switching, enabling daisy-chaining without extra switches, reducing cabling complexity and cost.

2. Advanced I/O Capabilities:

• 2 x Digital Outputs (PNP/NPN): Configurable for Distance, Speed, or Service alarms.
• 1 x Multifunction Input (MF): For external triggering, preset selection, or holding values.
• Service Intelligence: The sensor actively monitors its own health. It triggers warnings for laser aging, dirt accumulation, internal temperature deviations, or calibration errors before they affect process quality.

3. User-Friendly Operation:

• Display: 6-digit, 5x7 dot matrix LED display for real-time status and configuration.
• Mounting: Supplied with a robust mounting bracket (total weight approx. 1,600 g with bracket). Standard M5 thread and M12 SPEEDCON™ connectors ensure rapid installation and replacement.

Application Scenarios: Where the DL100-21AA2112 Shines

1. Heavy Industry & Steel Mills
In environments with extreme heat, dust, and vibration, the DL100’s IP65-rated metal housing and laser technology provide reliable measurement of coil positions, slab tracking, and crane anti-collision systems without physical contact.

2. Logistics & Warehousing
With a 100-meter range, a single sensor can monitor high-bay racking levels, detect pallet presence on high-speed conveyors, and guide automated guided vehicles (AGVs) with centimeter precision, even on dark or uneven surfaces.

3. Construction & Mobile Machinery
Mounted on excavators, cranes, or aerial lifts, the sensor provides precise boom length measurement and ground clearance monitoring, enhancing safety and operational efficiency.

4. Process Control
Ideal for non-contact level measurement in silos (grain, cement, chemicals) where mechanical float sensors would jam or corrode. The red laser provides a clear visual aid for alignment during setup.

Why Choose the DL100-21AA2112?

• Unrivaled Range-to-Precision Ratio: Few sensors on the market offer 100m range while maintaining ±0.5mm repeatability.
• Durability: The die-cast aluminum housing and IP65 rating ensure a service life of over 100,000 hours (at 25°C), minimizing downtime.
• Smart Diagnostics: The built-in service monitoring reduces maintenance costs by alerting operators to potential failures proactively.
• Global Standard: As a Class 2 laser device, it is safe for operation in occupied spaces while delivering high-performance metrics.