Topcon GTS-812 Total Station
The evolution of total station continues with the integration of DC servo motor into the classic high end Topcon instruments.
HIGH SPEED ROTATION 50° / SEC High speed DC servo motors enable the GTS-810 series to rotate maximum speed at 50° / sec. This ensures a smooth and quick rotation of the telescope, both horizontal and vertical.
NEW JOG / SHUTTLE MECHANISM A new jog / shuttle mechanism replaces clamp / tangent screw for high speed rotation and accurate target sighting.
HUGE DATA STORAGE 2MB data memory is provided as standard for GTS-810 series. Coupled with the use of PCMCIA / ATA flash card, it offers almost limitless memory storage capacity for your survey jobs. Also capacity of 2MB is provided for various larger application programs.
PCMCIA / ATA FLASH CARD SYSTEM The GTS-810 series are compatible with type II PC card of the PCMCIA world standard. From Topcon the 128 / 256 / 512KB memory cards are available. ATA flash card can also be read.
LARGE GRAPHIC DISPLAY clearly visible and understandable icon menu, and easy to follow instruction messages on the large graphic display (40 characters x 10 lines, 2 sides) make the Topcon GTS-810A / 810 series easy to use even with its highly intelligent and sophisticated functions. GTS-812 Specifications:
Telescope |
Length |
166mm |
Objective lens dia. |
50mm |
Magnification |
30X |
Image |
Erect |
Field of View |
1°30' |
Resolving Power |
3" |
Min. Focus Distance |
1.4m |
Distance Measurement |
Measuring Range 1 Prism 3 Prism (Condition : Slight haze with visibility about 20km moderate sunlight with light heat shimmer) |
2,200m 2,800m |
Accuracy Fine Measurement mode Coarse Measurement mode |
±(2mm+2ppmXD*)m.s.e. ±(10mm+2ppmXD*)m.s.e. |
Least Count In Measurement Fine Measurement Mode Coarse Measurement Mode |
1mm / 0.2mm 10mm / 1mm |
Measurement display |
10 digits : max. Display ±999999.9999 |
Measuring Time Fine Measurement mode Coarse Measurement Mode |
1mm : Approx. 1.2 sec. (Initial 4 sec.) 0.2mm : Approx. 2.8 sec. (Initial 5 sec.) 10mm : Approx. 0.4 sec. (Initial 3 sec.) 1mm : Approx. 0.7 sec. (Initial 3 sec.) |
Angle Measurement |
Method |
Absolute Reading |
Horizontal / Vertical |
2 Sides / 2 Sides |
Minimum Reading |
1" / 5" (0.2 / 1 mgon) |
Accuracy |
2" |
Diameter of circle |
71mm |
Servo Mechanism |
Driving Range |
All range rotating |
Coarse Movement |
Shuttle control |
Fine movement |
50° / sec. |
Tilt Correction |
Type |
Dual Axis |
Method |
Liquid Type |
Compensating Range |
±4' |
Correction Unit |
1" (0.1 mgon) |
Computer Unit |
OS |
MS-DOS Ver 3.22 |
Internal Memory System Memory Program Memory Main Memory Application Program & Data Memory |
FEEPROM 512kb FEEPROM 1MB SDRM 640KB FEEPROM 4MB |
Display |
Graphics LCD 40 Characters x 10lines (240 x 80 Dots) W/ Backlight |
Calendar Clock |
Provided |
Card System (Type I /II) |
PC Card Standard 95 Max. /32MB 5.0V Surevying Data (Dist, Ang, Coordinate) Setting out coordinate, AP Software |
Interface |
Serial I/F |
RS-232C |
Parallel I/F |
For Printer : Centronics Standard (12 Pin) |
Others |
Instrument Height |
196mm |
Level Sensitivity Circular Level Plate Level |
10' / 2mm 30" / 2mm |
Optical Plummet Magnification Focusing Range Image |
3 x 0.5m to infinity Erect |
Laser Plummet (Class 2) |
Factory Option |
Point Guide / Tracking Indicator |
Provided |
Dimension |
211 (L) x 229 (W) x 325 (H) mm |
Weight Instrument (With Battery) Plastic Carrying Case |
7.6kg 5.4kg |
Durability Dust / Water Protection Ambient Temperature Range |
IP54 -20°C to +50° |
Power Source |
On-board battery BT-56Q Output voltage Capacity Maximum Operating time at +20° angle and distance measurement Normal use |
7.2 V 4.0 Ah (Ni-MH) Approx 6.0 Hours Approx 5.0 Hours |
Battery Charger BC-27BR/27CR Input Voltage Frequency Recharging Time (at +20°C) Ambient Temperature Range Weight Discharging function |
AC120V (BC-27BR) / AC230V (BC-27CR) 50/60Hz 2.5 hours +10°C to 40°C 0.4kg (0.9lbs.) Yes |
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