Topcon ATB2 -

3 Models – 32x, 28x, and 24x Magnifications
Rapid, Accurate, and Stable Automatic Compensation
Ultra-Short 20cm (7.9 in.) Focusing
All-Weather Dependability
Clampless, Endless Fine Horizontal Adjustments

Rapid, Stable, and Durable Compensator

The compensator of the 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.

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.

Horizontal Circle for Angle Measurement

Horizontal angles can be directly read in 1° or 1gon units. Free rotation feature allows you to read any angle from zero.

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 also deters clouding or condensation inside the telescope.

TOPCON QUALITY
Ultimate Environmental Performance and Durability

TOPCON has been performing environmental tests against a set of expected job site conditions to certify the products for long term use. The AT-B Series has been tested by special inspection equipment for complete waterproofness. The AT-B Series also has the highest environmental performance and durability in TOPCON’s Auto Level history, proven by tests against temperature, humidity, vibration and drop.

Water Proof Test (IPX6)
The AT-B Series is proven to withstand powerful water jets from all directions without any submergence inside the unit.

Cold and Heat Resistance Test
The AT-B Series has passed operating temperature tests from -20 to +50 degree.

Durability Test
The AT-B Series has passed strict durability tests including rotation of the leveling foot screw, Focusing knob and Horizontal fine motor screw.

Includes

• 1 unit Topcon ATB2

• 1 unit Carry Case

• 1 unit User Manual

• 1 Lembar Sertifikat Kalibrasi

• 1 Lembar Garansi 1tahun

• 1 unit Rambu Ukur + Nivo Rambu

• 1 unit Alumunium Tripod

Brosur

Topcon-AT-B-Series

Specifications

Model	ATB2
Telescope
Length	215mm (8.46in.)
Magnification	32x
Objective aperture	42mm (1.65in.)
Resolving power	3″
Field of View (at 100m/328ft.)	1°20′ (2.3m / 7.5ft.)
Minimum focus	0.2m (7.9in.) from end of telescope 0.3m (1ft.) from instrument center
Image	Erect
Reticle pattern	Wedge
Stadia constant	0
Stadia ratio	100
Focusing knob	2-speed
Sighting aid	Peep sight
Lens hood	Retractable
Accuracy (standard deviation for 1km double run leveling)
Without micrometer	0.7mm (0.03in.)
With micrometer	0.5mm (0.02in.)
Compensator
Type	Pendulum compensator with magnetic damping system
Setting accuracy	0.3″
Working range	±15′
Circular level
Sensitivity	10′ / 2mm
Mirror	Pentaprism
Horizontal circle
Diameter	103mm (4.1 in.)
Graduations	1° / 1gon
General
Horizontal motion drive	Clampless, endless, double-sided knobs
Water resistance	IPX6 (EC 60529:2001)
Operating temperature	-20 to +50°C (-4 to +122°F)
Width	130mm (5.12in.)
Length	215mm (8.46in.)
Height	140mm (5.51in.)
Weight	1.85kg (4.1 lb.)