Total Station Topcon GTS-220 series

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Review Total Station Topcon GTS-220 series

Electronic total station GTS-220 series

GTS-220 series

TOPCON proudly announces the debut GTS-220 Series as the innovative successor to the best selling GTS-210 Series Total Stations. The GTS-210 Series with "Waterproof" design brought revolution to the surveying industry with features and durability. Now the new GTS-220 Series has up-graded its basic functions for distance and angle measurement in addition to maintaining superb durability against the environment. The GTS-220 Series is also provided with a longer life battery of 10 hours, and various kinds of application programs makes surveying work quick and simple in the field. The features included with the "All Weather" highly productive GTS-220 Series Total Stations are setting a new standard for surveying!

<Specification>

Model Name	GTS-223	GTS-225	GTS-226	GTS-229
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 (9,900ft) 4,000m (13,200ft) 5,000m (16,400ft)			2,000m (6,600ft) 2,700m (8,900ft) 3,400m (11,200ft)
Condition 2 1 prism 3 prisms 9 prisms	3,500m (11,500ft) 4,700m (15,400ft) 5,800m (19,000ft)			2,300m (7,500ft) 3,100m (10,200ft) 4,000m (13,200ft)
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 (25 miles), overcast with no heat shimmer.
Accuracy	±(2mm + 2ppm× D)m.s.e.			±(3mm + 3ppm× D)m.s.e.
	D: Measuring distance (mm)
Least Count in Measurement
Fine Mode	1mm (0.005 ft.)/0.2mm (0.001 ft.)
Coarse Mode	10mm (0.02 ft.)/1mm (0.005 ft.)
Tracking Mode	10mm (0.02 ft.)
Measurement Display	11 digits: max. display 9999999.9999
Measuring Time
Fine Mode   Coarse Mode   Tracking Mode	1mm: 1.2sec. (Initial 4 sec.) 0.2mm: 2.8sec. (Initial 5 sec.) 0.7sec. (Initial 3 sec.) 0.4sec. (Initial 3 sec.) (The initial time will be different by a condition and setting EDH off time.)
Atmospheric Correction Range	-999.9 to +999.9ppm (By 0.1ppm)
Prism Constant Correction Range	-99.9 to +99.9mm (By 0.1mm)
ANGLE MEASUREMENT
Method	Absolute Reading
Detecting System	H: 2 sides V: 1 side		H: 1 side V: 1 side
Minimum Reading	1″/5″ (0.2 / 1mgon)			5″/10″ (1 / 2mgon)
Accuracy *	3″ (1mgon)	5″ (1.5mgon)	6″ (1.8mgon)	9″ (2.7mgon)
Measuring Time	Less than 0.3 sec.
Diameter of circle	71mm
DISPLAY
Display Unit	Dot matrix LCD 20 characters × 4 lines with Blacklight
	2sides		1side
Keyboard	10 function keys
TILT CORRECTION (AUTOMATIC INDEX)
Tilt sensor	Dual axis			Single axis
Method	Liquid type
Compensating range	±3′
Correction unit	1″ (0.1 mgon)
OTHERS
Instrument height	176mm(6.93in)
LEVEL SENSITIVITY
Circular level	10′ / 2mm
Plate level	30″ / 2mm		40″ / 2mm
LASER PLUMMET : STANDARD
OPTICAL PLUMMET TELESCOPE (OPTION)
Magnification	3 ×
Focusing Range	0.5m to infinity
Image	Erect
Field of view (at 1.3m)	5°(dia.114mm)
DIMENSIONS
	336(H) × 184(W) × 150(L)mm [13.2(H) × 7.2(W) × 5.9(L)in.]
Weight
Instrument (with battery)	4.9kg (10.8 lbs.)
Plastic carryng case	3.2kg (7.1 lbs.)
DURABILITY
Water protection	IPX 6 (with BT-52QA)
Ambient temperature range	-20°C to +50°C (-4°F to +122°F)
BATTERY BT-52QA
Output voltage	7.2V
Capacity	2.7AH (Ni-MH)
Maximum operating time at +20°C(+68°F)
Including distance measurement	10 hours (12,000 points)
Angle measurement only	45 hours
Weight	0.3kg (0.7 lbs.)
BATTERY CHARGER BC-27BR / 27CR
Input Voltage	AC120(BC-27BR) AC230(BC-27CR)
Frequency	50 / 60Hz
Recharging Time (at +20°C/+68°F)	1.8 hours
Operating temperature	+10°C to +40°C (+50°F to +104°F)
Weight	0.5kg (1.1 lbs.)

* : Standard deviation base on DIN18723