All AT-G series levels feature a magnetically-dampened compensator hung by four special mylar ribbons having superior resistance to cold, heat and shock. The AT-G1 model features a 360° glass horizontal circle using a 25x magnification microscope to read the circle, while the AT-G2 thru AT-G7 have a standard 360° horizontal circle. All models are waterproof with a nitrogen gas sealed telescope which prevents clouding and moisture on the lens.
| AUTO LEVELS |
AT-G1 |
AT-G2/G2A |
AT-G3 |
AT-G4 |
AT-G6 |
AT-G7 |
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| Telescope: |
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| Length (mm/in.) |
229/9 |
229/9 |
230/9 |
192/7.7 |
193/7.7 |
204/8 |
| Image |
Erect |
Erect |
Erect |
Erect |
Erect |
Erect |
| Magnification |
32x |
32x |
30x |
26x |
24x |
22x |
| Objective Lens (mm/in.) |
45/1.8 |
45.1.8 |
40/1.6 |
30/1.2 |
30/1.2 |
30/1.2 |
| Relative Brightness |
1.98 |
1.98 |
1.78 |
1.33 |
1.56 |
1.86 |
| Field Of View |
1° 20' |
1° 20' |
1° 30' |
1° 30' |
1° 30' |
1° 30' |
| Resolving Power |
2.5" |
2.5" |
3.0" |
3.5" |
4.0" |
4.0" |
| Minimum Focus (m/ft.) |
1.0/3.3 |
1.0/3.3 |
0.5/1.6 |
0.5/1.6 |
0.5/1.6 |
0.9/2.9 |
| Stadia Constant |
0 |
0 |
0 |
0 |
0 |
0.1 |
| Stadia Ratio |
100 |
100 |
100 |
100 |
100 |
100 |
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| Sensitivities of Levels: |
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| Main Level (/2mm) |
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| Circular Level (/2mm) |
8' |
8' |
8' |
8' |
8' |
10' |
| Tilting Range |
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| Automating Leveling: |
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| Setting Accuracy |
± 0.3" |
± 0.3" |
± 0.3" |
± 0.3" |
± 0.3" |
± 0.5" |
| Compensating Range |
± 15' |
± 15' |
± 15' |
± 15' |
± 15' |
± 10' |
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Accuracy
1km Double Run Level: |
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Without Optical
Micrometer (mm) |
± 0.7 |
± 0.7 |
± 1.5 |
± 2.0 |
± 2.0 |
± 2.5 |
With Optical
Micrometer (mm) |
± 0.4 |
± 0.4 |
± 1.0 |
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| Horizontal Circle: |
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| Diameter (mm/in.) |
90/3.5 |
90/3.5 |
117/4.6 |
117/4.6 |
117/4.6 |
102/4.0 |
| Minimum Division |
10'(0.1g) |
1° (1g) |
1° (1g) |
1° (1g) |
1° (1g) |
1° (1g) |
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| Weight: |
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| Instrument (kgs/lbs.) |
2.1/4.6 |
1.8/4.1 |
1.8/4.1 |
1.6/3.6 |
1.6/3.6 |
1.2/2.6 |
| Carrying Case (kgs/lbs.) |
1.3/2.9 |
1.3/2.9 |
1.3/2.9 |
1.3/2.9 |
1.3/2.9 |
1.2/2.6 |
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| Optional Accessories: |
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| Diagonal Eyepiece |
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| Optical Micrometer |
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| Illuminator 3 |
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| 40x Eyepiece |
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| Centering Eyepiece |
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What's in the Box:
- Waterpass Topcon ATG 6
- Allumunium Tripod
- Rambu ukur / levelling staf
