| SPECIFICATIONS |
AT-G1
|
AT-G2
|
AT-G3
|
AT-G4
|
AT-G7N
|
| Telescope |
|
|
|
|
|
| Length (mm) |
229
|
229
|
230
|
192
|
192
|
| Image |
Erect
|
Erect
|
Erect
|
Erect
|
Erect
|
| Magnification |
32x
|
32x
|
30x
|
26x
|
22x
|
| Objective lens (mm) |
45
|
45
|
40
|
30
|
30
|
| Relative brightness |
1.98
|
1.98
|
1.78
|
1.33
|
1.86
|
| Field of view |
1°20'
|
1°20'
|
1°30'
|
1°30'
|
1°30'
|
| Resolving power |
2.5"
|
2.5"
|
3.0"
|
3.5"
|
4.0"
|
| Minimum focus (m) |
1.0
|
1.0
|
0.5
|
0.5
|
0.9
|
| Stadia ratio |
100
|
100
|
100
|
100
|
100
|
| Circular level |
|
|
|
|
|
| Sensitivity (/2mm) |
8'
|
8'
|
8'
|
8'
|
10'
|
| Automatic levelling |
|
|
|
|
|
| Setting accuracy |
±0.3"
|
±0.3"
|
±0.3"
|
±0.3"
|
±0.5"
|
| Compensating range |
±15'
|
±15'
|
±15'
|
±15'
|
±10'
|
| Accuracy (1km double run levelling) |
| Without optical micrometer (mm) |
±0.7
|
±0.7
|
±1.5
|
±2.0
|
±2.5
|
| With optical micrometer (mm) |
±0.4
|
±0.4
|
±1.0
|
-
|
-
|
| Horizontal circle |
|
|
|
|
|
| Diameter (mm) |
90
|
117
|
117
|
117
|
117
|
| Minimum division |
10'(0.1g)
|
1°(1g)
|
1°(1g)
|
1°(1g)
|
1°(1g)
|
| Weight |
|
|
|
|
|
| Instrument (kg) |
2.1
|
1.8
|
1.8
|
1.6
|
1.6
|
| Plastic carrying case (kg) |
1.3
|
1.3
|
1.3
|
1.3
|
1.3
|
Designs and specifications here in are subject to change without prior notice. In order to obtain the best results with this instrument, please be sure to review all user instructions prior to operation.
|
