Topcon GPT-7500 Series, Instruction Manual

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125
17 SPECIFICATIONS
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Non-prism mode (Diffusing Surface) D: Measuring distance
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Non-prism long mode *2)*3) (Diffusing Surface) D: Measuring distance
*1)The initial time will be different by a condition.
*2)However, when the measurement distance is more than 500 m, or when the reflectance of the
measured surface is low, measurement time will become longer.
*3)Measurement distance: No more than 500m, When Kodak gray card (white surface) is used.
Laser class for distance measurement : Class 1(IEC Publication 825)
: Class I(FDA/BHR 21 CFR 1040)
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
GTS-751/GPT-7501 : 1"/0.5" (0.5mgon/0.1mgon, 5mmil/2mmil) reading
GTS-752/GPT-7502/
GTS-753/GPT-7503/
GTS-755/GPT-7505
: 5"/1" (1mgon/0.2mgon, 20mmil/ 5mmil) reading
Measurement mode Measurement accuracy
Least Count
in Measurement
Measurement
Time *1)
Fine
0.2mm mode
± (5mm) m.s.e.
0.2mm
(0.001ft)
3 sec.
(Initial 4 sec.)
1mm mode
1mm
(0.005ft)
1.2 sec.
(Initial 3 sec.)
Coarse
1mm mode
± (10mm) m.s.e.
1mm
(0.005ft)
0.5 sec.
(Initial 2.5 sec.)
10mm mode
10mm
(0.02ft)
Tracking ± (10mm) m.s.e.
10mm
(0.02ft)
0.3 sec.
(Initial 2.5 sec.)
Measurement mode Measurement accuracy
Least Count
in Measurement
Measurement
Time
Fine 1mm mode
± (10mm +10ppm x D)
m.s.e.
1mm
(0.005ft)
1.5~6 sec.
(Initial 6~8 sec.)
Coarse
5mm mode
± (20mm +10ppm
×
D)
m.s.e.
5mm
(0.02ft)
1~3 sec.
(Initial 6~8 sec.)
10mm mode
10mm
(0.02ft)
Tracking ± 100mm m.s.e.
10mm
(0.05ft)
Approx. 0.4 sec.
(Initial 4~7 sec.)