Specification :

Waterpass / Auto level Topcon ATG 6
Automatic Level Topcon

Topcon offers a wide range of automatic levels for the land surveyor, civil engineer and contractor.
FEATURE

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.

SPECIFICATION
AUTO LEVELS

AT-G1

AT-G2/ G2A

AT-G3

AT-G4

AT-G6

AT-G7

Telescope:

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

3 0x

26x

24x

22x
Objec tive 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

0.1
Stadia Ratio

100

100

100

100

100

100

Sensitivities of Levels:

Main Level ( / 2mm)

—

—

—

—

—

—
Circular Level ( / 2mm)

8'

8'

8'

8'

8'

10'
Tilting Range

—

—

—

—

—

—

Automating Leveling:

Setting Accuracy

± 0.3"

± 0.3"

± 0.3"

± 0.3"

± 0.3"

± 0.5"
Compensating Range

± 15'

± 15'

± 15'

± 15'

± 15'

± 10'

Accuracy
1km Double Run Level:

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

—

—

—

Horizontal Circle:

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)

Weight:

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

Optional Accessories:

Diagonal Eyepiece

•

•

Optical Micrometer

•

•

Illuminator 3

•

•

40x Eyepiece

•

Centering Eyepiece

•

• What' s in the Box:

* Waterpass Topcon ATG 6
* Allumunium Tripod
* Rambu ukur / levelling staf

http: / / www.koordinatsurvey.indonetwork.co.id

mail: izar_bos03@ yahoo.co.id

Hub : IZAR Halky

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