512KB 315KByte 1882KByte, Off, View free memory

1 NOMENCLATURE AND FUNCTIONS

9) Reticle illumination (OFF/Low/Middle/High)

Press the [F6] key to get to Screen 2 on the display. Press the [F4] key to turn the reticle illumination

ON. Continuing to press [F4] will change the intensity options.

OFF

Low

Middle

High

10) View free memory

The amount of free memory for the card or internal memory can be displayed. Press the [F6] key to get to Screen 2 on the display.

Press the [F5] key to view free memory.

The card memory icon (top left side of the display) shows the size of the card and the amount of free memory. The second icon shows the amount of free internal memory.

Card Memory

Internal Memory

512KB 315KByte

1882KByte

See Chapter 6 “MEMORY MANAGE MODES”, for further options and instructions.

11) Set audio mode

The light acceptance quantity level (Signal level) is displayed in this mode.

When reflected light from the prism is received, a buzzer sounds. This function is good for easy collimation when the target is difficult to find.

Press the [F1] key on screen 3.

The received return signal level is displayed with bar graph as follows.

No light acceptance

Minimum quantity level

Maximum quantity level

(1)To stop the buzzer, see Chapter 8 “PARAMETERS SETTING MODE”.

(2)Also, it is possible to display the signal level in Distance Measuring Mode.

12)Setting Temperature, Pressure, Atmospheric correction value (ppm), Prism constant value (PSM)

The temperature, pressure, PPM, and PSM can be viewed by pressing the [F2] key on screen 3 . The received return signal level is displayed with bar graph as follows.

Refer to Chapter 10 “SETTING THE PRISM CONSTANT VALUE” and Chapter 11 “SETTING ATMOSPHERIC CORRECTION”, for further instructions.

1-9

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.

Topcon GTS-825A, GTS-822A 512KB 315KByte 1882KByte, Reticle illumination OFF/Low/Middle/High, Off

Models: GTS-822A GTS-825A GTS-821A, GTS-822A, GTS-823A, GTS-825A GTS-823A