3 AUTOMATIC TRACKING / AUTOMATIC COLLIMATION

3.4 Setting Parameters for Auto-Tracking

A proper setting for each parameter are necessary for custom use.

The setting of the parameters can be done in the star key mode.

3.4.1 Setting Items

Items

Selecting item

Contents

 

 

 

SEARCH

PATTERN 1

The search range is the area to searched for the prism by rotating

PATTERN

 

the telescope and body in searching.

PATTERN 2

 

 

 

 

 

SEARCH

V:0° to 90°

The search range is the area to searched for the prism by rotating

RANGE

H:0° to180°

the telescope and body in searching. The SEARCH range is

 

 

decided from the point where the prism lost, and the values will be

 

 

set to plus and minus directions in horizontal and vertical. Also it is

 

 

enable to set each search pattern separately.

 

 

 

WAIT TIME

0:00 to1:00:00

The time the prism is lost before GTS-820A series starts the

 

(1sec. step)

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

 

 

searching.

 

HOLD

 

 

 

 

 

TRACKING

SURVEY

Select your purpose.

SPEED

 

 

MACHINE

 

 

 

 

CONTROL

 

 

 

 

REFLECTOR

PRISM

The type of the reflector can be selected.

TYPE

 

 

REFLECTOR

 

 

 

 

TAPE

 

 

 

 

PREDICTION

0.5sec./ 1sec. /

After the instrument loses a prism, the time (prediction operation

CTRL TIME

2sec. /3sec. / 4sec

time) for the instrument to continue moving operation can be set up.

 

/ 5sec.

 

 

 

 

1) Search Patterns

The search pattern is the rotating method of telescope and instrument to find the target prism in search mode. Search pattern includes the following 2 ways that can be selected.

This pattern can be selected to search the prism at the point where the prism is lost. Instrument searches in up down direction gradually from the point where the prism is lost.

PATTERN 1 The searching is arranged to 2 times until the prism is found.

The auto tracking mode changes to manual mode when the reflector could not found out within 2 times searching, and returns to the point where the reflector is lost.

This pattern can be selected to search for the prism. The search pattern tries to locate the prism in a very short time.

PATTERN 2 The searching is arranged to 2 times until the reflector is found.

The auto tracking mode changes to manual mode when the reflector could not found out within 2 times searching, and returns to the point where the reflector is lost.

1)Things like heat haze might interfere with the tracking system in the long distance, near limit of auto tracking range, in search mode.

2)Reaction by rotating of instrument in search mode is serious. Be sure of each connection part of the tribrach or tripod are firmly.

2)Search Range

The search range is the area to searched for the prism by rotating the telescope and body in Searching. The Search range is decided from the point where the prism lost, and the values will be set to plus and minus directions in horizontal and vertical.

Select search pattern first, and set the search range to the selected search pattern. Also it is enable to set each search pattern separately.

3-5

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Topcon GTS-825A, GTS-822A, GTS-823A Setting Parameters for Auto-Tracking, Setting Items, Search Patterns, Search Range
Page 39 Page 41

GTS-822A, GTS-825A, GTS-821A, GTS-822A, GTS-823A, GTS-825A, GTS-823A specifications

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