Sharp DT-200L Manual do Utilizador descarregar pdf (Página 21)

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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 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

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 ± 0.7 ± 0.7 ± 1.5 ± 2.0 ± 2.0 ± 2.5

Micrometer (mm)

With Optical ± 0.4 ± 0.4 ± 1.0 — — — –

Micrometer (mm)

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°(0.1g) 1°(0.1g) 1°(0.1g) 1°(0.1g) 1°(0.1g)

AT - G Series

Topcon offers a wide range of automatic levels

for the land surveyor, civil engineer and contractor.

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.

The AT-24A is ideal for construction and surveying

contractors who demand the highest levels of

accuracy, reliability, and robust performance at the

lowest possible cost.

The AT-24A is available as in a kit called a “Grade

Pack,” which includes the AT-24A Level, a carrying

case, and a Topcon Tripod.

AT - 24A Automatic Level

Telescope

Image: Erect

Magniﬁcation: 24x

Clear Objective aperture: 1.4 in (36mm)

Minimum focus: 2.6 ft (0.8m)

Stadia Constant: 0

Stadia Ratio: 100

Horizontal Circle

Degrees of Graduation: 1°

Circular Level

Sensitivity: 8’/2mm

Automatic Leveling System

Setting Accuracy: ±0.5”

Compensating Working Range: ±15’

Accuracy

In 1 km Double Run Level: ±2.0mm

Auto Levels

Topcon offers a wide range of levels

for the land surveyor, civil engineer,

and contractor. These superiorly crafted

levels come in several categories

built for speciﬁc applications and

designed to suit any varying degrees of

functionality and budget constraints.

Survey/GPS - Auto Levels

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