Topcon GT-500

The Topcon GT-500 is a compact, high-performance robotic total station designed for single-operator efficiency. Featuring UltraSonic Direct Drive motors and a 5″ angular accuracy, it delivers the fastest prism tracking in its class, making it the perfect entry-point for professional construction layout and grade checking.

UltraSonic Direct Drive: Features gearless motors with 120° per second rotation for silent, high-speed prism tracking.
UltraTrac Technology: Employs advanced algorithms to maintain lock on moving prisms in high-vibration or obstructed environments.
IP65 Rated Ruggedness: Engineered to be dust-tight and resistant to water jets for reliable performance in adverse weather.
5″ Angular Accuracy: Provides a cost-effective 5-second precision level, ideal for standard site layout and grade checking.
Hybrid Positioning Ready: Easily integrates with Topcon GNSS receivers to switch between robotic and GPS tracking with one touch.

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FAQs

What makes the UltraSonic motors on the GT-500 special?

The UltraSonic Direct Drive motors are gearless, making the GT-500 roughly 30% smaller and lighter than previous robotic models. This design reduces mechanical wear and provides a much quieter, smoother rotation, which is why Topcon originally launched this series with an industry-leading 5-year motor warranty.

Where can I get my Topcon GT-500 serviced or repaired?

PQS Survey is your destination for professional servicing and technical support. We utilize our network of authorised service centre depots to provide manufacturer-approved maintenance and repairs, ensuring your GT-500 remains compliant and accurate for site use.

How does the GT-500 differ from the newer GT-700?

The GT-700 is part of the latest generation of Topcon robotics, featuring a significantly higher rotation speed of 200° per second compared to the 120° per second found on the GT-500. The GT-700 also utilizes newer motor control technology for even smoother tracking and is fully optimised for the most recent iterations of MAGNET field software.

Is the Topcon GT-500 capable of reflectorless measurement?

Yes, the GT-500 features a powerful EDM that allows for reflectorless measurements up to 800m. This is ideal for measuring points that are dangerous or impossible to reach with a prism, such as building facades or overhead structures, depending on surface conditions.

Where can I hire a Topcon GT-500 in the UK?

You can hire the Topcon GT-500 directly from PQS Survey. We manage an extensive hire fleet of robotic total stations, providing contractors and surveyors across the UK with reliable, high-performance instruments for every stage of construction.

Does the GT-500 support remote prism searching?

The GT-500 is fully compatible with the RC-5 remote system. This allows the user to perform a “Quick Lock” by emitting a fan-shaped laser beam from the prism pole; the total station detects this beam and automatically slews to relock onto the prism in seconds.

What are the main differences between the GT-500 and the GT-600?

The GT-500 was the original entry in the GT robotic series, whereas the GT-600 is an updated version featuring enhanced internal processing power. The GT-600 typically offers more refined “UltraTrac” algorithms for better performance in busy site environments.

How rugged is the GT-500 for use on a construction site?

The instrument is built to withstand harsh environments with an IP65 rating, protecting it against dust ingress and low-pressure water jets. This ensures the unit can continue to operate reliably in the rain and wind commonly encountered on UK sites.

Can the GT-500 be used for Hybrid Positioning?

Yes, the GT-500 is “Hybrid Ready.” By adding a Topcon GNSS receiver to the top of the prism pole, the system can switch between robotic tracking and satellite positioning, which is ideal when the line of sight to the total station is blocked.

What is the battery life of the GT-500 during field use?

The GT-500 typically offers around 4 hours of continuous robotic operation on a single BDC70 battery. For a standard 8-hour construction shift, we recommend using higher-capacity BDC72 batteries or ensuring your hire kit from PQS Survey includes at least two fully charged batteries.