<Specification>
Model |
GPT-8201A |
GPT-8202A |
GPT-8203A |
GPT-8205A |
Telescope |
Objective lens diameter |
50mm |
Magnification |
30 × |
Image |
Erect |
Field of View |
1°30′ |
Resolving Power |
3″ |
Minimum Focusing Distance |
1.3m |
Focusing Speed |
2 speeds |
2 speeds |
2 speeds |
2 speeds |
Auto Tracking/
Servo Mechanism |
Max. Rotating Speed |
50° / s |
Max. Automatic Tracking
Speed |
12° / s |
Auto Tracking
Range |
Prism 2 |
8m to 800m |
Prism A3/A3s |
10m to 500m |
Drive Range |
All range rotating |
Search Range |
User definable |
Coarse movement |
Shuttle control
(in 7 steps) |
Fine movement |
Jog Control (Min.
1 sec) |
Collimation Accuracy *1 |
3″ (Standard
deviation of repeatability) |
Distance Measurement |
Prism mode |
Measuring Range |
Prism 2*2 |
2 to 7,000m |
Measuring Accuracy |
±(2mm+2ppmxD)
m.s.e. |
Non-prism |
Measurement
Range (White surface) |
3 to 120m (Long
mode 30 to 1,200m) |
Measuring Accuracy (Diffusing
Surface) |
3 to 25m
25m to
Long mode *3 |
±(10mm)
m.s.e.
±(3mm+2ppmxD*) m.s.e.
±(10mm+10ppmxD*) m.s.e. |
Measuring
time |
|
0.2mm: 3 sec. (Initial 4
sec)
1mm: 1.2 sec. (Initial 3 sec.)
Long mode 1mm: 1.5 to 6 sec. |
Angle Measurement |
Method |
Absolute reading |
Horizontal/Vertical |
2 sides |
Minimum reading |
0.5″ /1″ (0.1
/ 0.5mgon) |
1″ /5″ (0.2
/ 1mgon) |
Accuracy** |
1″
(0.3mgon) |
2″
(0.6mgon) |
3″
(1.0mgon) |
5″
(1.5mgon) |
Diameter of
circle |
71mm |
Tilt Correction |
Type |
Dual axis |
Method |
Liquid type |
Compensating
range |
±4′ |
Correction
unit |
1″
(0.1mgon) |
Computer unit |
OS |
MS-DOS® VER.3.22 |
Internal memory
System memory
Program memory
Main memory
Application program & data memory |
FEEPROM 512KB
FEEPROM 1MB
SRAM 640KB
FEEPROM 4MB |
Display |
Graphics LCD 40
characters × 10lines (240 × 80 Dots) w/backlight |
Calendar clock |
Provided |
Card system
(Type I/II) |
PC Card Standard
95 Max./32MB |
Interface |
Serial I/F
Parallel I/F |
For
computer:RS-232C(6 pin)
For RC-2II:RS-232C(4 pin)
For printer:Centronics Standard (12 pin) |
Other |
Instrument
height |
196mm |
Level sensitivity
Circular level
Plate level |
10″ / 2mm
30″ / 2mm |
Optical plummet
Magnification
Focusing range
Image |
3 ×
0.5m to infinity
Erect |
Tracking indicator |
Provided |
Dimension |
211(L) × 229(W) × 325(H)mm |
Weight
Instrument(with battery)
Plastic Carrying Case |
GPT-8000A series:7.6kg
5.4kg |
Durability
Dust/Water protection
Ambient Temperature Range |
IP54
-20°C to + 50°C |
Laser class |
Class 2 (Class
II) |
Power Source |
On-board battery
BT-56Q
Output voltage
Capacity
Maximum operating time (at +20°C)
Angle and distance measurement
Auto tracking measurement
Weight |
7.2V
4.0Ah(Ni-MH)
Approx. 4.0 hours
Approx. 2.5 hours
0.4kg |
Battery Charger
BC-27BR/27CR
Input voltage
Frequency
Recharging time (at +20Åé)
Ambient temperature range
Weight
Discharging function |
AC 120V (BC-27BR), 230V (BC-27CR)
50/60Hz
2.5hours
+10°C to 40°C
0.4kg
Yes |