1 NOMENCLATURE AND FUNCTIONS

1.2Display

•Display

In general upper four lines display the measuring data, and the

bottom line displays the soft key function which is changed by the measuring mode.

•Contrast

The contrast and illumination of display window are adjusted by star (H) key.

•Heater (Automatic)

The built-in heater keeps the display functional when the temperature goes below 0°C (32 °F).To switch the heater ON or OFF, refer to Chapter 8 “PARAMETERS SETTING MODE”.

When the heater is ON and the temperature goes below 0°C.(32 °F), the heater automatically adjust the temperature to the display to keep it operating.

•Example

V : 87°55'45"

HR: 180°44'12"

SD HD NEZ 0SET HOLD P1↓

Angle measurement mode

V-angle : 87°55’20”

H-angle : 180°44’12”

•Display marks

V : 87°55'40"

HR: 180°44'12" PSM 0.0

SD:

12.345

PPM

0.0

 

 

(m) *F.R

MEAS

MODE VH

HD

NEZ P1↓

 

Distance measurement mode

Horizontal-angle

87°55’40”:

Horizontal distance :

180°44’12”

Relative elevation

:12.345m

Display

Contents

Display

Content

 

 

 

 

V

V-angle

*

EDM working

 

 

 

 

V%

Percent grade

(m)

Meter unit

 

 

 

 

HR

H-angle right

(f)

Feet unit

 

 

 

 

HL

H-angle left

F

Fine mode

 

 

 

 

HD

Horizontal distance

C

Coarse mode (1mm)

 

 

 

 

VD

Relative elevation

T

Tracking mode (10mm)

 

 

 

 

SD

Slope distance

R

Repeat measurement

 

 

 

 

N

N coordinate

S

Single measurement

 

 

 

 

E

E coordinate

N

N-times measurement

 

 

 

 

Z

Z coordinate

ppm

Atmospheric correction value

 

 

 

 

 

 

psm

Prism constant value

 

 

 

 

 

 

 

 

 

Battery Level Indicator

 

Rotation Indicator

 

Refer to Section 2.4 “Battery Level

 

Refer to Section 1.8 “Rotating

 

Indicator” for further information.

 

Method” for further information.

 

 

 

 

1-3

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Topcon GTS-821A, GTS-822A, GTS-823A, GTS-825A instruction manual Display
Page 13 Page 15

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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