Topcon GT-503 Robotic Total Station

The Topcon GT-503 Robotic Total Station is a high-performance, next-generation surveying instrument designed to enhance productivity, precision, and efficiency in the field. Engineered with advanced robotic technology, the GT-503 offers superior tracking, ultra-accurate measurement, and seamless connectivity, making it ideal for demanding surveying and construction applications.

Built with ultra-compact and lightweight materials, the GT-503 ensures ease of use and portability while maintaining rugged durability. The system's advanced UltraSonic motors provide the fastest and most accurate robotic response in the industry, enabling precise angle and distance measurements with minimal lag.

The GT-503 features Topcon’s exclusive Hybrid Positioning technology, combining GNSS and robotic capabilities for unmatched versatility. With LongLink™ Bluetooth® communication, operators can control the system remotely for increased efficiency and convenience. The instrument also integrates TSshield™, Topcon's security and maintenance system that offers remote locking and firmware updates to ensure optimal performance and safety.

Whether for land surveying, construction layout, or topographic mapping, the Topcon GT-503 delivers the ultimate in precision, reliability, and efficiency.

Key Features:

✅ Advanced UltraSonic Motors – Provide ultra-fast, silent, and precise robotic rotation and targeting, enhancing productivity in the field.

✅ 5-Second Angular Accuracy – Ensures the highest levels of precision for detailed measurements.

✅ Long-Range Reflectorless EDM – Measures distances up to 800 meters without a prism and up to 5,000 meters with a prism.

✅ Hybrid Positioning Technology – Combines GNSS and robotic measurement capabilities for versatile and accurate surveying solutions.

✅ LongLink™ Bluetooth® Communication – Enables remote operation from up to 300 meters away, improving efficiency and safety.

✅ TSshield™ System – Provides advanced security with remote locking and tracking, as well as firmware updates for optimal performance.

✅ Compact and Lightweight Design – Weighs only 5.7 kg, ensuring easy transport and setup.

✅ Rugged Durability – IP65-rated for resistance to dust, water, and harsh environmental conditions.

Applications:

• Land and Construction Surveying – Perform boundary, topographic, and construction layout surveys with high accuracy.
• Infrastructure Development – Ideal for roads, bridges, and large infrastructure projects requiring precision measurements.
• Mapping and GIS Data Collection – Capture accurate geospatial data for mapping and asset management.
• Utilities and Pipeline Surveys – Precisely locate and map underground and overhead utilities.
• Monitoring and Control – Use in structural health monitoring and deformation surveys.

Why Choose the Topcon GT-503 Robotic Total Station?

The Topcon GT-503 is designed for surveyors and construction professionals who require fast, accurate, and reliable data collection in any environment. The advanced UltraSonic motor technology ensures rapid, precise targeting, while the Hybrid Positioning system allows seamless integration with GNSS workflows for ultimate flexibility.

The GT-503’s LongLink™ Bluetooth® connectivity empowers field crews to operate remotely, enhancing efficiency and reducing setup times. Its TSshield™ system ensures that the device remains secure and updated, providing peace of mind and consistent performance.

Lightweight yet rugged, the GT-503 is built to endure harsh field conditions while delivering dependable accuracy. It integrates smoothly with Topcon’s data collection and post-processing software, ensuring a streamlined workflow from field to office.

Whether you're conducting high-precision construction layout, boundary surveys, or complex monitoring projects, the Topcon GT-503 Robotic Total Station offers the speed, accuracy, and dependability you need to succeed.

Topcon GT-503 – Technical Specifications

Telescope

• Magnification: 30x
• Objective Aperture: 45 mm (1.77 in)
• Field of View: 1°30' (26 m at 1,000 m / 85 ft at 1,000 ft)
• Minimum Focusing Distance: 1.3 m (4.3 ft)
• Resolving Power: 3"

Angle Measurement

• Measuring Method: Absolute encoder
• Accuracy: 5" (1.5 mgon)
• Minimum Reading: 0.5"/1" (selectable)
• Compensator: Dual-axis liquid tilt sensor
• Compensation Range: ±6’

Distance Measurement (EDM)

• Reflectorless Range: Up to 800 m (2,624 ft)
• Prism Range:
  • Single Prism: Up to 5,000 m (16,404 ft)
  • Multiple Prisms: Up to 6,000 m (19,685 ft)
• Accuracy:
  • Reflectorless: ±3 mm + 2 ppm
  • Prism: ±2 mm + 2 ppm
• Measurement Time:
  • Fine Mode: 1.2 sec
  • Rapid Mode: 0.9 sec
  • Tracking Mode: 0.4 sec

Robotic and Tracking Performance

• Rotation Speed: 180° per second
• Locking Range: Up to 1,000 m (3,280 ft)
• Tracking Technology: UltraSonic motor technology for fast and silent tracking
• Remote Control Range: Up to 300 m (984 ft) with LongLink™ Bluetooth®

Communication and Connectivity

• Internal Communication: Bluetooth® Class 1, USB 2.0
• LongLink™ Bluetooth®: Remote control up to 300 meters (984 ft)
• External Port: RS-232C, USB, Bluetooth®

Power and Battery

• Battery Type: Li-Ion rechargeable battery
• Operating Time: Up to 10 hours (continuous operation)
• Charging Time: Approximately 4 hours
• Hot-Swap Capability: Yes

Display and User Interface

• Display: Dual color touchscreen LCD
• Keyboard: Alphanumeric keyboard with function keys
• Operating System: Windows® CE
• Data Storage:
  • Internal Memory: 512 MB
  • External Memory: USB flash drive (up to 32 GB)

Environmental Specifications

• Operating Temperature: -20°C to +50°C (-4°F to +122°F)
• Storage Temperature: -30°C to +60°C (-22°F to +140°F)
• Protection Rating: IP65 (dust-tight and water-resistant)
• Humidity: 100% condensing
• Shock Resistance: Can withstand drops from 1.5 meters (4.9 ft)

Physical Characteristics

• Dimensions: 178 mm x 181 mm x 348 mm (7.0 in x 7.1 in x 13.7 in)
• Weight: 5.7 kg (12.6 lbs) including battery and tribrach

Security and Maintenance

• TSshield™:
  • Remote locking and tracking
  • Firmware updates via cellular connection

Software Compatibility

• Field Software: Compatible with Topcon Magnet™ Field and Pocket 3D
• Office Software: Topcon Magnet™ Office, AutoCAD®, and other third-party CAD software

Standard Accessories

• Rechargeable batteries and charger
• Carrying case
• Tribrach
• Lens hood and cleaning kit
• User manual

The Topcon GT-503 Robotic Total Station combines cutting-edge technology with practical design to deliver high accuracy, exceptional reliability, and ease of use. It's engineered to meet the demands of modern surveying and construction professionals, ensuring consistent, efficient, and precise results.