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23-3
23 SPECIFICATIONS
Electronic Angle Measurement
Method : Absolute reading
Detecting system
Horizontal angle
GPT-3102N/3103N/3105N : 2 sides
GPT-3107N : 1 side
Vertical angle
GPT-3102N : 2 sides
GPT-3103N/3105N/3107N : 1 side
Minimum reading
GPT-3102N/3103N/3105N : 5" / 1" (1mgon / 0.2mgon) reading
GPT-3107N : 10" / 5" (2mgon / 1mgon) reading
Accuracy (Standard deviation based on DIN 18723 )
GPT-3102N : 2"(0.6mgon )
GPT-3103N : 3"(1mgon )
GPT-3105N : 5"(1.5mgon )
GPT-3107N : 7"(2mgon )
Measuring time : Less than 0.3 sec.
Diameter of circle : 71mm
Tilt Correction (Automatic index)
Tilt sensor
GPT-3102N/3103N/3105N : Automatic vertical and horizontal compensator
GPT-3107N : Automatic vertical compensator
Method : Liquid type
Compensating Range : ±3'
Correction unit : 1" (0.1mgon)
Others
Instrument height : 176mm (6.93in) Base unit detachable
(Height from the tribrach dish to the center of
telescope)
Level sensitivity
Circular level : 10'/2mm
Plate level
GPT-3102N/3103N/3105N : 30"/2 mm
GPT-3107N : 40"/2 mm
Optical Plummet Telescope
Magnification : 3×
Focusing range : 0.5m to infinity
Image : Erect
Field of view : 5°(ø114mm/1.3m)
Laser pointer
Light source : LD (Visible laser)
Wave length : 690nm
Out put : 1mW maximum
Laser class : Class 2(IEC Publication 825)
: Class II(FDA/BHR 21 CFR 1040)
Laser Plummet (only for Laser plummet type)
Light source : LD (Visible laser)
Wave length : 633nm
Out put : 1mW maximum
Laser class : Class 2(IEC Publication 825)
: Class II(FDA/BHR 21 CFR 1040)
Dimension : 336(H)×184(W)×172(L) mm
(13.2(H)×7.2(W)×6.8(L) in)
Weight
Instrument
(with battery) : 5.3kg (11.6 lbs)
(without battery) : 5.0kg (11.0 lbs)
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