Inhouse product
It has a completely waterproof telescope (IPx6) and is, therefore, ideal for all kinds of wet-surveying operations, in light rain or tunnels.
The AT-B2 can focus on objects as close as 20cm (7.9 in.) which is suitable for close range work carried out by builders and contractors.
The compensator of AT-B series levels incorporate four suspension wires made of extremely high-tensile metal that features minimal thermal expansion coefficient, providing unmatched durability and accuracy even in the harshest environmental conditions.
Its 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.
Each instrument is calibrated by our factory-trained technicians before it ships to ensure accuracy. This means adjusting both the reticle and the bubble.
Remember, no matter how good or expensive your level is, if it's out of adjustment, your level won't shoot level!
The Topcon AT B2 Automatic Level allows surveyors and construction professionals to perform highly accurate leveling, angle, height, as well as distance measurements.
This optical instrument has 32x magnification, 1/32 inch accuracy, and a built-in compensator that stabilizes the line of sight despite the fine vibrations caused by heavy equipment on the jobsite.
Featuring a focusing range of 7.9 inches in front of the telescope, this Topcon site level facilitates working in confined spaces. With an internal magnetic dampened compensator, this survey and construction tool levels the line of site within the range of ±15 arc-minutes and an accuracy of 0.3 arc-second.
For working in extremely confined spaces, this auto level allows you to use an optional diagonal eyepiece, an optical micrometer , a light pack for leveling in low light conditions, and a 40x eyepiece for improved accuracy and magnification.
With the AT-B2 automatic level, the rotation speed of the focusing knob is automatically switched between coarse and fine, allowing for quick and precise focusing.
In addition, the fine horizontal knobs located on both sides of the instrument can be operated without clamping, speeding up aiming procedures to the staff and other objects.
Horizontal angles can be directly read in degrees or gon and can be viewed just below the eyepiece. Protected against dirt and scratch, the horizontal circle features free rotation that enables you to read any angle from zero.
The ATB2 also allows you to easily view the circular level through its integrated pentagonal prism without changing your eye height.
With the IPx6 rating, the AT-B2 auto level is protected against powerful water jets from all directions. The advanced protection design not only prevents water from entering the instrument, but also deters clouding or condensation inside the telescope.
This Topcon automatic level comes with a hard carrying case, plumb bob, hex wrench, adjusting pins, vinyl cover, cleaning cloth and lens cap.
AUTO LEVEL AT-B Series Topcon AT-B2 32X Auto Level - 60907
Three Finest Models Satisfy ALL Levels of Requirements
AT-B2
High-precision model
AT-B3
Versatile model for surveying, engineering and construction
AT-B4
Economical model for engineering and construction
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 even in the harshest environmental conditions.
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.
20cm (7.9 in.) - Ultra Short Focus Range
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.
All Weather Dependability
With the IPx6 rating, the instrument is protected against powerful water jets from all directions, meaning the AT-B series withstands a sudden shower or torrential rainfall. The advanced protection design not only prevents water penetration, but also deters clouding or condensation inside the telescope.
Distance, Angle, and Height Measurement
In addition to height and angle, distance to the staff can be simultaneously measured using stadia lines. This is accomplished by reading the length of staff between two stadia lines and multiplying the value by 100.
Length | 215 mm (8.46 in) |
Zoom | 32X |
Objective slot | 42 mm (1.65 inch) |
solve power | 3 in. |
Field of View (at 100m/328ft) | 1° 20' (2.3 m/7.5 ft) |
Focusing minute from the end of the telescope | 0.2 m (7.9 in) |
Min. Focus from the Tool Center | 0.3 m (1 ft) |
picture | erect |
The stadiums are fixed | 0 |
pitches ratio | 100 |
focus knob | 2 speed |
see aid | peep sight |
Accuracy | |
sub micrometer | 0.7 mm (0.03 inch) |
with micrometer | 0.5 mm (0.02 inch) |
compensator | |
Type | Pendulum compensator with magnetic damping system |
Precision setting | 0.5 in. |
work area | ±15 ft. |
generalization level | |
sensitive | 10 ft./2 mm |
horizontal circle | |
Diameter | 103 mm (4.1 in) |
minimum division | 1°/1gon |
general | |
water resistance | IPX6 (IEC 60529:2001) |
Operating temperature | -4°F to +122°F (-20°C to +50°C) |
Show | 5.12 in. (130mm) |
Length | 8.46 in. (215mm) |
to rise | 5.51 in. (140mm) |
weight | 4.1 lbs (1.85 kg) |
Optional Accesories
Diagonal Eyepiece
DE16 (AT-B2) / DE22 (AT-B3/B4)
Facilitates your works when the level is set at low height or in confined spaces.
Optical Micrometer OM5(F) (AT-B2)
Addition of the optical micrometer to the AT-B2 allows for 0.1mm (OM5) or 0.001ft. (OM5F) reading of staffs and improves accuracy to 0.5mm for 1km double run leveling. This combination is ideal for precise leveling.
40x Eyepiece EL5 (AT-B2)
Increases magnification of AT-B2 to 40x. Replaces standard eyepiece.
AT-B2 | AT-B3 | AT-B4 | ||
---|---|---|---|---|
Telescope | ||||
Length | 215mm (8.46 in.) | |||
Magnification | 32X | 28X | 24X | |
Objective Aperture | 42mm (1.65 in.) | 36mm (1.42 in.) | 32mm (1.26 in.) | |
Resolving Power | 3" | 3.5" | 4" | |
Field of View (at 100m/328ft.) | 1¸20' (2.3m / 7.5ft.) | 1¸25' (2.5m / 8.2ft.) | ||
Minimum Focus | 0.2m (7.9 in.) from end of telescope 0.3m (1ft.) from instrument center | |||
Image | Erect | |||
Stadia Constant | 0 | |||
Stadia Ratio | 100 | |||
Accuracy (1km double run leveling) | ||||
Without Micrometer | 0.7mm (0.03 in.) | 1.5mm (0.06 in.) | 2.0mm (0.08 in.) | |
With Micrometer | 0.5mm (0.02 in.) | n/a | ||
Compensator | ||||
Type | Pendulum compensator with magnetic damping system | |||
Setting Accuracy | 0.3" | 0.5" | ||
Working Range | ±15' | |||
Circular level | ||||
Sensitivity | 10' / 2mm | |||
Horizontal circle | ||||
Diameter | 103mm (4.1 in.) | |||
Minimum Division | 1/ 1gon | |||
General | ||||
Water Resistance | IPX6 (IEC 60529:2001) | |||
Operating Temperature | -20 to +50 (-4F to +122F) | |||
Size | Width | 130mm (5.12 in.) | ||
Length | 215mm (8.46 in.) | |||
Height | 140mm (5.51 in.) | 135mm (5.31 in.) | ||
Weight | 1.85kg (4.1 lbs.) | 1.7kg (3.7 lbs.) |
Standard Package
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