Speed, precision, versatility, reliability. The GTS-820 series puts it all in a package to deliver the highest productivity day after day, in all field conditions. Compare it to any other robot.

GTS-820 Series Features:

• Unique Topcon "wide beam" tracking system- The fast servomotors will track the prism at a speed of more than 12 degrees per second. A full 20% faster than before.
  
  
• Advanced CCD tracking technology which incorporates Movement Anticipation technology. This keeps the beam
  
  
• stuck to the prism for unprecedented tracking accuracy.

RC-2RW Remote Controller

The “World’s First” and only radio-free communications for robotic total stations can now be operated cable-free with Topcon’s new RC-2RW remote controller! This improved version of the RC-2RII adds a Bluetooth® communication module (RC-2B), eliminating the hassles of a cable between the remote and your Topcon data controller. Other benefits of the existing RC-2RII and the new RC-2RW include the following:

• Fast, reliable communication at 2Hz update rate, without radios!

• No more concerns with radio interference!

• Eliminates radios, batteries, and related cables!

• Instant lock-on using “Fast-Trak” delivers industry leading performance!

Specifications

Tracking
turning speed	50° /sec
tracking speed	12° /sec
tracking range	2600 feet, 800 meters
tracking accuracy	3"
Telescope
Length	166 Millimeters
Objective Lens Diameter	50mm(EDM:50mm)
Magnification	30X
Image	Erect
Field of View	1°30’
Resolve Power	3 "
Min. Focus Distance	1.3 meters
Measurement Range
1 Prism	7200 ft, 2200 meters
3 Prism	9200 ft, 2800 meters
9 Prism	11800 ft, 3600 meters
Mini Prism	2600 ft, 800 meters
Measuring Accuracy
Prism Mode	±(2mm+2ppmxD*)m.s.e. fine, ±(10mm+2ppmxD*)m.s.e. coarse
Minimum reading	0.2mm(0.001ft.) / 1mm(0.005ft) fine, 1mm(0.005ft) coarse, 10mm(0.02ft.) tracking
measurement time	1mm:1.2 sec.(Initial 3.0 sec.)/0.2mm:3.0 sec (Initial 4.0 sec.) fine, 0.5 sec.(Initial 2.5 sec.) coarse, 0.3 sec.(Initial 2.5 sec.) tracking
Angle Measurement
Method Absolute
Detection	2 sides horizontal, 2 sides vertical
Minimum reading	0.5"/1" arc sec, 0.1/0.5 mgon
Accuracy	1" arc sec, 0.3 mgon
Diameter of Circle 71 Millimeters
Tilt Correction
Type	Dual Axis
Method	Liquid type
Compensating Range	±4’
Correction Unit	1" arc sec, 0.1 mgon
Computer Unit
Operating system	MS-Dos Verf.3.22
Processor	NEC V40HL
RAM	640KB SRAM
ROM	512K Byte (FEEPROM) system memory, 1M Byte (FEEPROM) program memory, 2M Byte (FEEPROM) data memory, 2M Byte (FEEPROM) application program memory
Display	240 x 80 dots Graphic LCD w/Back Light & Heater screen, Dual display
Card system	ATA Flash Type1 / 2 (up to 32MB)
Interface	RS-232 Serial I/F Port 1, N/A, N/A, N/A
Environmental
Circular level sensitivity	10’ /2mm
Plate level sensitivity	30" /2mm
Optical Plummet	3x Magnification, 0.5m to infinity Focusing Range, Erect Image, 4° Field of View
Laser Pointer	N/A, N/A, N/A, N/A, provided Tracking indicator point guide
Dimensions (HxWxL)	12.8 (H) x 8.9 (W) x 8.3 (L) inches, 325(H) x 229(W) x 211(L) Millimeters
Instrument Weight(with battery)	16.6 pounds, 7.5 kg
Case Weight	11.9 pounds, 5.4 kg
Dust/Water Protection	IP54 rating
Operating Temperature	-20° to +50° Celsius, -4° to +122° Fahrenheit
Power
source	Ni-MH BT-56Q
Output Voltage	DC7.2 Volts
Capacity	4000 mAh
approximate battery life	3.5 hours including distance measurement, 6.0 hours Angle measurement only
Battery Charger
ID	BC-27
input voltage	AC100-240 Volts
Frequency	50/60 Hertz
Recharging time	2.5 Hours
operating temperature	+10° to +40° Celsius, +50° to +104° Fahrenheit