108
16 SPECIFICATIONS
Least Count in Measurement
Fine measurement mode : 1mm (0.005ft.) / 0.2mm (0.001ft.)
Coarse measurement mode : 10mm (0.02ft.) / 1mm (0.005ft.)
Tracking measurement mode : 10mm (0.02ft.)
Measurement Time
Fine measurement mode : 1mm : Approx. 1.2sec. (Initial 3 sec.)
0.2mm : Approx. 3 sec. (Initial 4 sec.)
Coarse measurement mode : Approx. 0.5sec. (Initial 2.5 sec.)
Tracking measurement mode : Approx. 0.3sec. (Initial 2.5 sec.)
(The initial time will be different by a condition and
setting EDM off time. )
Atmospheric Correction Range : –999.9 ppm to +999.9 ppm, in 0.1 ppm increments
Prism Constant Correction Range : –99.9 mm to +99.9 mm, in 0.1 mm increments
Coefficient Factor : Meter / Feet
International feet 1meter = 3.2808398501 ft.
US SURVEY feet 1meter = 3.2808333333 ft.
Electronic Angle Measurement
Method : Absolute reading
Detecting system :
Horizontal : 2 sides
Vertical : 2 sides
Minimum reading
GPT-7001i : 1"/0.5" (0.5mgon/0.1mgon, 5mmil/2mmil) reading
GPT-7002i/7003i/7005i : 5"/1" (1mgon/0.2mgon, 20mmil/ 5mmil) reading
Accuracy(Standard deviation based on DIN 18723 )
GPT-7001i : 1"(0.3mgon )
GPT-7002i : 2"(0.6mgon )
GPT-7003i : 3"(1.0mgon )
GPT-7005i : 5"(1.5mgon )
Diameter of circle : 71 mm
Tilt Correction
Type : Automatic vertical and Horizontal index
Method : Liquid type
Compensating Range : ±4'
Correction unit : 1"(0.1mgon)
Computer unit
Microprocessor : XScale PXA255
Processor speed : 400MHz
Operating system : Microsoft Windows CE.NET 4.2
Memory : 128MB / RAM
256MB Flash disk (Internal)
Display
LCD : 3.5 inch TFT color LCD
(240x320 dots )
Touch panel : Electrical analog resistor thin film system
Others
Instrument height : 182mm (7.2in) Base unit detachable
(Height from the tribrach dish to the center of
telescope)
Level sensitivity
Circular level : 10'/2mm
Plate level : 30"/2 mm
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