Topcon GPT-3000W Series User Manual

23-1
23 SPECIFICATIONS
23 SPECIFICATIONS
Telescope
Length : 150mm
Objective lens : 45mm (EDM 50mm)
Magnification : 30×
Image : Erect
Field of view : 1°30'
Resolving power : 2.8"
Minimum focus : 1.3m
Reticle illumination : Provided
Distance measurement
Measurement range
Non-prism mode
Prism mode
Condition 1: Sight haze with visibility about 20km (12.5miles) moderate sunlight with light heat
shimmer.
Measurement accuracy
Non-prism mode (Diffusing Surface)
1.5 to 25m (5 to 82ft) : ± (10mm) m.s.e.
25m or more (82ft or more) : ± (5mm) m.s.e.
Prism mode
: ±(3mm +2ppm × D) m.s.e.
D:Measuring distance (mm)
Laser class for distance measurement : Class 1(IEC Publication 825)
: Class I(FDA/BHR 21 CFR 1040)
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 Display : 12 digits : max. display 99999999.9999
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. )
Target
Atmospheric conditions
In low light condition and without sun glare on target
Kodak gray card
(White surface)
1.5m to 250 m (5 to 820 ft)
Prism
Atmospheric conditions
Condition 1
1 prism 3,000m (9,900ft)

Topcon GPT-3000W Series Specifications

General

Brand	Topcon
Model	GPT-3000W Series
Category	Measuring Instruments
Language	English