Topcon GPT-8003A

* Topcon GPT-8003A 3″ Auto Tracking Total Station [ID- X1213]
– Calibrated By A
Topcon Service Center
* Topcon RC-2H Sensor Handle
* Cleaning Cloth
* Lens Cap
* Assorted Tool Kit
* Battery Pack
* AC Adapter/Charger
* User Manual On CD-ROM
* Hard Carrying Case

Topcon GPT-8003A 3″ Accuracy Auto Tracking Total Station
– Calibrated By A Topcon Service Center
– RC-2R Remote Is Not Included!

Topcon
GPT-8003A Full Robotic Total Station

The GPT-8003A series are non-prism total stations with built in auto
tracking offering the option for one person surveying from behind the
instrument or at the prism.

GPT-8003A

Fast auto tracking
GPT-8003A has a very fast tracking speed of 12º per second ensuring
that loss of lock only normally occurs due to obstructions and not due
to the movement of the prism. 12º/sec is approximately equivalent to 75
km/h at 100m. This results in reliable prism lock and better
performance in machine control and other applications where fast or
erratic movements can be expected. The GPT-8000A series uses a new CCD
tracking system, which identifies the prism and ensures only the prism
can be followed by the instrument. This system increases the speed and
reliability of tracking.

Super Fast Find
The super “Fast Find” function is a major advantage of the system
ensuring quick re-location of the prism after loss of lock, with the
simple press of a button. Using Topcon’s unique laser optical
communication technique the RC-2 II directs the total station to the
prism position. Weighing only 300 grams and the size of a small pocket
calculator, the RC-2 II, when activated, sends a signal, which is
detected by the total station. The total station then quickly turns to
the correct direction and vertical angle setting to locate the prism.

Fast Auto Lock
The area around the prism where auto lock is activated has been
increased from 1º to 5º in the GPT-8003A. This allows the prism to be
identified within a wider field of view so that automatic sighting
takes over from manual sighting sooner and only rough pointing to the
target is necessary

Topcon GPT-8003A Total Station

Reflectorless measurement
To offer complete flexibility to your surveying procedures the
GPT-8003A can measure in non-prism mode over a distance of 120
meters.  This gives the added benefit to the surveyor working on
his own, of being able to work behind the instrument to pick up those
inaccessible of difficult to reach points.

Specifications:

TELESCOPE
Length 166mm
Objective
lens
50mm
Magnification 30X
Field of
view
 1° 30’
Resolving
Power
 3”
Minimum
focus
 1.3m
Focusing 1 speed
AUTO
TRACKING SERVO MECHANISM
Max.
revolving speed
50°/sec
Max. auto
tracking speed
 12°/sec
Auto
tracking range
 800m
Driving
range
All range
revolving
Search range  User
definable
Coarse
Movement
 Shuttle
control (7 speeds)
Fine
Movement
Jog control
(Min. 1 sec.)
Positioning
accuracy
 standard
deviation 3″
DISTANCE
MEASUREMENT (P)
Measurement
range Mini prism
1,500
(visibility approx.20km)
Standard
Prism
7,000
(visibility approx. 20km)
Measuring
accuracy
 ±
(3mm+2ppm)m.s.e
Minimum
reading
Fine
0.2mm/1mm Coarse 1mm/10mm
Measuring
time(initial)
Fine 1mm
mode approx. 1.2 sec. (3 sec)
ANGLE
MEASUREMENT
Method Absolute
encoder
Detecting Horizontal
: dual Vertical : dual
Minimum
reading
 5″/1″
(1.0mgon)
Accuracy   3″
(1.0mgon)
TILT SENSOR
Type Dual Axis
Compensating
range
 ±4′
LEVEL
SENSITIVITY
Circular
level
 10’/2mm
Plate level  30″/2mm
OPTICAL
PLUMMET
Optical
plummet
Erect 3x
OTHERS
Waterproof IP54
Laser Class class 2
Optical
Communication
 Optional
RC-2 II

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Topcon GPT-8003A Spec Sheet