- Contact Person : Mr. Ren Shuangcai
- Company Name : Beijing Gelinruida Technology Development Co., Ltd.
- Tel : 86-010-52258115
- Fax : 86-010-52258116
- Address : Beijing,Beijing,13L,Tower A, Jianan Mansion, No.2, Youanmen Outer Street, Fengtai District, Beijing, P.R. China.
- Country/Region : China
- Zip : 100069
Level Topcon Auto Levels AT-B Series
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• Durable, Dependable, High Value Auto Levels All-Weather Dependability • Clampless, Endless Fine Horizontal Adjustments
Rapid, Stable, and Durable Compensator
The compensator of AT-B Series incorporates four suspension wires made of super-high-tensile metal that features minimal thermal expansion coefficient, providing unmatched durability and accuracy. Finely tuned magnetic damping system quickly levels and stabilizes the line of sight despite the fine vibrations present when working near heavy equipment or busy roadways.
Horizontal Circle for Angle Measurement
Horizontal angles can be directly read in 1º or 1gon units. Free rotation feature allows you to read any angle from zero. The circle is covered for protection against dirt and scratch. The readout window is located below the eyepiece for quick reading.
20cm (7.9 in.) - Ultra-Short Minimum Focus
The AT-B Series can focus on objects at 20cm (7.9 in.) in front of the telescope. This feature dramatically facilitates the works in confined spaces.
Specifications | ||
TELESCOPE | ||
Length | AT-B2215mm (8.46 in.) AT-B3215mm (8.46 in.) AT-B4215mm (8.46 in.) | |
Magnification | AT-B232X AT-B328X AT-B424X | |
Objective Aperture | AT-B242mm (1.65 in.) AT-B336mm (1.42 in.) AT-B432mm (1.26 in.) | |
Resolving Power | AT-B23 in. AT-B33.5 in. AT-B44 in. | |
Field of View | AT-B21°20’ AT-B31°25’ AT-B41°25’ (at 100m/328ft.) | |
(at 100m/328ft.) | AT-B2(2.3m/7.5 ft.) AT-B3(2.5m/8.2 ft.) AT-B4(2.5m/8.2 ft.) | |
Min. Focus from end of telescope | AT-B20.2m (7.9 in.) AT-B30.2m (7.9 in.) AT-B40.2m (7.9 in.) | |
Min. Focus from instrument center | AT-B20.3m (1 ft.) AT-B30.3m (1 ft.) AT-B40.3m (1 ft.) | |
Image | AT-B2Erect AT-B3Erect AT-B4Erect | |
Stadia Constant | AT-B20 AT-B30 AT-B40 | |
Stadia Ratio | AT-B2100 AT-B3100 AT-B4100 | |
Focusing Knob | AT-B22-speed AT-B31-speed AT-B41-speed | |
Sighting Aid | AT-B2Peep Sight AT-B3Gun Sight AT-B4Gun Sight | |
ACCURACY | ||
Without Micrometer | AT-B20.7mm (0.03 in.) AT-B31.5mm (0.06 in.) AT-B42.0mm (0.08 in.) | |
With Micrometer | AT-B20.5mm (0.02 in.) AT-B3n/a AT-B4n/a | |
COMPENSATOR | ||
Type | Pendulum compensator with magnetic damping system | |
Setting Accuracy | AT-B20.3 in. AT-B30.5 in. AT-B40.5 in. | |
Working Range | AT-B2±15 ft. AT-B3±15ft. AT-B4±15 ft. | |
CIRCULAR LEVEL | ||
Sensitivity | AT-B210 ft./2mm AT-B310 ft./2mm AT-B410 ft./2mm | |
HORIZONTAL CIRCLE | ||
Diameter | AT-B2103mm (4.1 in.) AT-B3103mm (4.1 in.) AT-B4103mm (4.1 in.) | |
Minimum Division | AT-B21°/1gon AT-B31°/1gon AT-B41°/1gon | |
GENERAL | ||
Water Resistance | IPX6 (IEC 60529:2001) | |
Operating Temperature | -4°F to +122°F (-20ºC to +50ºC) | |
Width | AT-B25.12 in. (130mm) AT-B35.12 in. (130mm) AT-B45.12 in. (130mm) | |
Length | AT-B28.46 in. (215mm) AT-B38.46 in. (215mm) AT-B48.46 in. (215mm) | |
Height | AT-B25.51 in. (140mm) AT-B35.51 in. (140mm) AT-B45.31 in. (135mm) | |
Weight | AT-B24.1 lbs. (1.85kg) AT-B33.7 lbs. (1.7kg) AT-B43.7 lbs. (1.7kg) | |
Level Topcon Auto Levels AT-B Series
