8Press the [F6](MEAS) key. The measurement starts.

The shifted quantity between H angle and V angle measured from the measuring will be calculated internally.

9Confirm the coincident of cross hair line and the senter of prism, press the [F5](YES) key. The compensation value will be set and memorized to GTS-820A series.

The display will return to the main menu.

[F6]

[F5]

9 CHECK AND ADJUSTMENT

Adj Tracking Axis

Wait

Adj Tracking Axis

>Set OK?

YES NO

Complete

lThe display shows “Compensation Range Overcoat” when the calculated compensation value is exceeded than limited value.

lIf the distance between the instrument and the prism is not enough to adjust, the display shows “The

distance is too short”. The distance between the instrument and prism should be more than 35m.

lIf the difference of the measured data between in normal position and in inverted position is exceeded than limited value, the display shows “Tolerance Limit Over”.

lIf the measuring is unstable when the atmospheric condition is bad or the optical path is interrupted, the display shows “Standard Deviation Over”.

lTo cancel the compensation, press the [F6](NO) key.

9-16

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Topcon GTS-821A, GTS-822A, GTS-823A, GTS-825A instruction manual Adj Tracking Axis Wait Set OK?
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GTS-822A, GTS-825A, GTS-821A, GTS-822A, GTS-823A, GTS-825A, GTS-823A specifications

Topcon's GTS series of total stations, including the GTS-821A, GTS-822A, GTS-823A, and GTS-825A, are known for their robust features and exceptional precision, catering to the needs of surveying and construction professionals. These instruments blend advanced technology with user-friendly interfaces to enhance productivity in the field.

The GTS-821A model is designed for reliability and accuracy. It offers a measurement range of up to 1,000 meters and delivers precision within ±2 millimeters, making it ideal for jobs requiring fine detail. Key features include a high-speed angle measurement system and a dual-axis compensator that ensures accuracy on uneven terrain.

In contrast, the GTS-822A model takes performance a step further by incorporating advanced optical technologies. It includes a high-performance EDM (Electronic Distance Measurement) that allows for faster measurements with a range extending up to 2,000 meters. This model also integrates a clear display and simple user interface, facilitating easier operation for users of all skill levels.

The GTS-823A represents a perfect blend of portability and advanced functionality. It is lightweight, making it easy to transport between job sites. This model incorporates GPS capabilities, allowing seamless integration with GNSS systems for enhanced positioning accuracy. Its onboard software supports various surveying methods, making it versatile for different applications.

The GTS-825A stands out for its advanced features tailored for high-precision tasks. This model supports wireless communication, enabling real-time data transfer to smartphones and tablets, which enhances collaboration in fieldworks. With an impressive measurement capability, it extends the measurement range and precision, meeting the demands of large-scale projects.

All models in this series share a durable design reputation, ensuring they withstand harsh environmental conditions. Their user-friendly interfaces are complemented by robust software support, providing surveying professionals with the tools they need to optimize their workflows.

In summary, Topcon’s GTS series, including the GTS-821A, GTS-822A, GTS-823A, and GTS-825A, represent the cutting edge of surveying technology, boasting features like extended measurement ranges, high precision, advanced EDM, and GPS integration. These instruments not only enhance productivity but also ensure that professionals can achieve their surveying goals efficiently and effectively. Whether for routine land surveys or complex construction projects, the Topcon GTS series delivers exceptional performance and reliability.
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