3 AUTOMATIC TRACKING / AUTOMATIC COLLIMATION

[Example] SEARCH RANGE : 10° in horizontal, 5° in vertical

Search range +5°

10°

Point where prism lost

-5°

 

-10° +10°

20°

Setting Search range requires consideration. The items to think about: optical path interrupted by other objects; collimated point from GTS-820A series to prism is shifted after Turning and Searching Command; possible other prisms, targets, or other objects to interfere with tracking the desired prism; and many other examples all play a role in determining the search range.

Note: This search range is only for auto-tracking function. The search range of auto-collimating is fixed as ±5° in both directions horizontal and vertical.

3) Wait Time

The time the prism is lost before GTS-820A series starts the searching. Setting time is 1second step maximum 60 minutes.

If the mode is set to [HOLD], mode will not change to searching.

4) Tracking Speed

Choose the mode of “Survey” or “Machine Control” according to the purpose of measurement.

 

l In case requiring auto aiming in high accuracy to the prism which is still.

SURVEY

l Suitable for fixed point observation, management of landslides, surveying

displacement of dam.

 

 

l When beginning auto-tracking, the instrument needs to collimate stable prism.

 

 

 

l Suitable for controlling of construction machinery or real time surveying of variety

MACHINE

traveling objects.

CONTROL

l When beginning auto-tracking, the instrument can track a prism, even if the prism is

 

moving.

 

 

Note: If the Machine Control mode is chosen, the GTS-820A may incorrect-track the headlight of a car etc. temporarily.

5) Reflector type

You can choose a reflector type according to reflective objects such as Prism-2 or reflector tape. This setting will reduce incorrect tracking.

6) Prediction operating time

After the instrument loses a prism, the time (prediction operation time) for the instrument to continue moving operation can be set up.

During auto tracking operation, when auto tracking axis between the instrument and a prism is intercepted by a tree etc., the moving is continued supposing a motion (prediction) of the prism till then. It is effective in auto tracking operation after the prism is intercepted with the obstacle by this function. When an obstacle is large, the prediction operation time should be set up long.

Moreover, when you want to terminate auto tracking operation immediately at the point which missed the prism, and to be changed into a search state. Prediction operation time should be set up short.

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Topcon GTS-822A, GTS-825A, GTS-823A instruction manual Wait Time, Tracking Speed, Reflector type, Prediction operating time
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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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