Total Station Topcon GTS-720 series

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Review Total Station Topcon GTS-720 series

Electronic Total Station GTS-720 series

GTS-720 series

Here Come Next Generation of Total Station !! Topcon, the world leader in Precise Positioning Solutions, is now proud to announce the launch of the next generation of total station GTS-720 series, which features built-in Windows® CE.NET operating system, large & full color graphic display with touch pad, lithium-ion battery which assures the long time operation, and powerful on-board software. You can get all you need in this Total stations.

<Specification>

Model Name	GTS-721	GTS-722	GTS-723	GTS-725
Telescope
Length	150mm
Objective Lens Diameter	45mm (EDM 50mm)
Magnification (×)	30 ×
Image	Erect
Field of View	1°30′
Resolving Power	2.5″
Minimum Focus Distance	1.3m
Distance Measurement
Condition 1   1 prism   3 prisms   9 prisms	3,000m 4,000m 5,000m			2,000m 2,700m 3,400m
Condition 2   1 prism   3 prisms   9 prisms	3,500m 4,700m 5,800m			2,300m 3,100m 4,000m
Condition 1 : Sight haze with visibility about 20 km (12.5 miles) moderate sunlight with light heat shimmer. Condition 2 : No haze with visibility about 40 km, overcast with no heat shimmer.
Accuracy	±(2mm + 2ppm× D*)m.s.e.
Least Count in Measurement   Fine measurement Mode   Coarse measurement Mode   Tracking measurement Mode	1mm (0.005 ft.)/0.2mm (0.001 ft.) 10mm (0.002 ft.)/1mm (0.005 ft.) 10mm (0.002 ft.)
Measurement Display	11 digits: max. display ±999999.9999
Measuring Time
Fine measurement Mode   Coarse measurement Mode   Tracking measurement Mode	1mm: Approx. 1.2sec. (Initial 4 sec.) 0.2mm: Approx. 2.8sec. (Initial 5 sec.) 0.7sec. (Initial 3 sec.) 0.4sec. (Initial 3 sec.) (The initial time will be different by a condition)
Angle Measurement
Method	Absolute reading
Horizontal	2 sides
Vertical	2 sides
Minimum Reading	0.5″/1″ (0.1 / 0.5mgon)	1″/5″ (0.2 / 1mgon)
Accuracy **	1″ (0.3mgon)	2″ (0.6mgon)	3″ (1mgon)	5″ (1.5mgon)
Diameter of circle	71mm
Tilt Correction
Type	Dual axis
Method	Liquid type
Compensating range	±4′
Correction unit	1″ (0.1 mgon)
Computer unit
OS	Microsoft Windows® CE.NET 4.2
Processor	176.9Mhz Hitachi SH7750R
Memory   RAM   ROM	64M byte 2M byte (Flash ROM)+64M byte(Flash Disk) (A portion is used for pre-installed programs and data management function)
Display	320 × 240 (QVGA) dots Graphic LCD TFT color display with back lights and touch panel function
	2 sides			1 side
Card system	CompactFlashTMCard (Type I/II)
Interface
Serial I/F Port	RS-232C(6 pin) USB (type B) for ActiveSync®
Other
Instrument height	182mm
Level sensitivity   Circular level   Plate level	10″ / 2mm 30″ / 2mm
Optical plummet   Magnification   Focusing range   Image	3 × 0.5m to infinity Erect
Point Guide	Provided
Dimension	GTS-721 / 722 / 723 : 343(H) × 245(W) × 219(L)mm GTS-725 : 343(H) × 245(W) × 199(L)mm
Weight
Instrument (with battery)	6.2kg(13.6lbs)			6.1kg(13.4lbs)
Plastic carryng case	4.7kg(10.3lbs)
Durability
Dust/Water protection	IP54(Base on the standard IEC60529)
Ambient Temperature Range	-20°C to +50°C (-4°F to +122°F)
Power Source
On-board Lithium-ion battery BT-61Q (This battery does not contain mercury)
Output voltage	DC 7.2V
Capacity   Maximum operating time at   +20°C   Including distance measurement   Auto measurement only   Weight	4400m Ah Approx. 7.5 hours Approx. 10 hours 0.2kg(0.4lbs)
Battery Charger BC-30
Input Voltage	AC 120-240V
Frequency	50 / 60Hz
Recharging Time (at +20°C/+68°F)	4 hours
Ambient temperature range	+10°C to +40°C (+50°F to +104°F)
Weight	0.15kg(0.3lbs)

D*: Measuring distance (mm)
** : Standard deviation based on DIN18723