Topcon GPT-8003A User Manual

3 AUTOMATIC TRACKING / AUTOMATIC COLLIMATION (GPT-8000A series)
3-5
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
PAT T E R N
PATTERN 1 The search range is the area to searched for the prism by rotating
the telescope and body in searching.
PATTERN 2
SEARCH
RANGE
V:0° to 90°
H:0° to180°
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. Also it is
enable to set each search pattern separately.
WAIT TIME 0:00 to1:00:00
(1sec. step)
The time the prism is lost before GPT-8000A series starts the
searching. If the mode is set to [HOLD], mode will not change to
searching.
HOLD
TRACKING
SPEED
SURVEY Select your purpose.
MACHINE
CONTROL
REFRECTOR
TYPE
PRISM The type of the refrector can be selected.
REFRECTOR
TA P E
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.
PAT TE RN 1
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.
The searching is arranged to 2 times until the prism is found.
The auto tracking mode changes to manual mode when the refrector could not found out
within 2 times searching, and returns to the point where the refrector is lost.
PAT TE RN 2
This pattern can be selected to search for the prism. The search pattern tries to locate the
prism in a very short time.
The searching is arranged to 2 times until the refrector is found.
The auto tracking mode changes to manual mode when the refrector could not found out
within 2 times searching, and returns to the point where the refrector 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.

Topcon GPT-8003A Specifications

General

Brand	Topcon
Model	GPT-8003A
Category	Measuring Instruments
Language	English