Topcon AT-B2 User manual

SPECIFICATIONS*
TELESCOPE AT-B2 AT-B3 AT-B4
Length 215 mm
Magnification 32X 28X 24X
Objective Aperture 42mm 36mm 32mm
Resolving Power 3“ 3.5“ 4“
Field of view 1°20‘ 1°25‘
(at 100 m) (2.3 m) (2.5m)
Minimum Focus 0.2m from end of telescope
0.3m from instrument center
Image Erect
Stadia Constant 0
Stadia Ratio 100
Focusing Knob 2-speed 1-speed
Sighting Aid Peep Sight Gun Sight
ACCURACY (1km double run leveling)
Without Micrometer 0.7 mm 1.5mm 2.0mm
With Micrometer 0.5mm 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
Minimum Division 1°/ 1gon
GENERAL
Water Resistance IPX6 (IEC 60529:2001)
Operating Temperature –20ºC to +50ºC
Size (W x L x H) 130mm x 215mm x 140mm H: 135mm
Weight 1.85 kg 1.7kg
AUTO LEVEL
Durable, Dependable,
Precise Auto Levels
n3 Models - 32x, 28x and
24x Magnifications
nRapid, Accurate, and Stable
Automatic Compensation
nUltra-Short 20cm Focusing
nAll-Weather Dependability
nEndless Fine Horizontal
Adjustments
AT-B
Series
Your local authorised Topcon distributor is:
* all technical changes are reserved by TOPCON, 07/2010
grafit-werbeagentur.de
The Leader in Positioning Technology ...
Topcon is the worldwide leading developer and manufacturer of
precision positioning equipment and offers the widest selection
of innovative precision GPS systems, laser, optical surveying,
machine control, GIS and agriculture products.
T205EN - English - A
www.topcon.eu

AT-B: For all levelling applications
6
3
2
1
4
1
2
3
4
5
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.
Quick sight
Strong, lightweight composite,
dry-nitrogen charged body
Level vial, hinged sighting mirror
and level vial protection cap
Fine horizontal adjustment
Integral tribrach leveling
system with dome and flat
tripod mounting plate
Rapid leveling, magnetically
dampened leveling system
Focus adjustment
Rubber eyepiece cap
Angle indication
– 0° to 360°
(0 g to 400 g)
20cm - Ultra-Short Minimum Focus
The AT-B series can focus on objects
at 20cm 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.
Rapid, Stable, and Durable
Compensator
The compensator of AT-B series incor-
porates 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.
Optional Accessories
Standard Package
lAT-B Level
lPlumb bob
lHex wrench
lAdjusting pins
lVinyl cover
lCleaning cloth
lLens cap
lUser manual
lHard carrying case
6
7
8
9
5
7
8
9
4
Diagonal Eyepiece
DE16 (AT-B2)
Diagonal Eyepiece
DE22 (AT-B3/B4)
40x Eyepiece
EL5 (AT-B2)

AT-B: For all levelling applications
6
3
2
1
4
1
2
3
4
5
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.
Quick sight
Strong, lightweight composite,
dry-nitrogen charged body
Level vial, hinged sighting mirror
and level vial protection cap
Fine horizontal adjustment
Integral tribrach leveling
system with dome and flat
tripod mounting plate
Rapid leveling, magnetically
dampened leveling system
Focus adjustment
Rubber eyepiece cap
Angle indication
– 0° to 360°
(0 g to 400 g)
20cm - Ultra-Short Minimum Focus
The AT-B series can focus on objects
at 20cm 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.
Rapid, Stable, and Durable
Compensator
The compensator of AT-B series incor-
porates 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.
Optional Accessories
Standard Package
lAT-B Level
lPlumb bob
lHex wrench
lAdjusting pins
lVinyl cover
lCleaning cloth
lLens cap
lUser manual
lHard carrying case
6
7
8
9
5
7
8
9
4
Diagonal Eyepiece
DE16 (AT-B2)
Diagonal Eyepiece
DE22 (AT-B3/B4)
40x Eyepiece
EL5 (AT-B2)

AT-B: For all levelling applications
6
3
2
1
4
1
2
3
4
5
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.
Quick sight
Strong, lightweight composite,
dry-nitrogen charged body
Level vial, hinged sighting mirror
and level vial protection cap
Fine horizontal adjustment
Integral tribrach leveling
system with dome and flat
tripod mounting plate
Rapid leveling, magnetically
dampened leveling system
Focus adjustment
Rubber eyepiece cap
Angle indication
– 0° to 360°
(0 g to 400 g)
20cm - Ultra-Short Minimum Focus
The AT-B series can focus on objects
at 20cm 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.
Rapid, Stable, and Durable
Compensator
The compensator of AT-B series incor-
porates 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.
Optional Accessories
Standard Package
lAT-B Level
lPlumb bob
lHex wrench
lAdjusting pins
lVinyl cover
lCleaning cloth
lLens cap
lUser manual
lHard carrying case
6
7
8
9
5
7
8
9
4
Diagonal Eyepiece
DE16 (AT-B2)
Diagonal Eyepiece
DE22 (AT-B3/B4)
40x Eyepiece
EL5 (AT-B2)

SPECIFICATIONS*
TELESCOPE AT-B2 AT-B3 AT-B4
Length 215 mm
Magnification 32X 28X 24X
Objective Aperture 42mm 36mm 32mm
Resolving Power 3“ 3.5“ 4“
Field of view 1°20‘ 1°25‘
(at 100 m) (2.3 m) (2.5m)
Minimum Focus 0.2m from end of telescope
0.3m from instrument center
Image Erect
Stadia Constant 0
Stadia Ratio 100
Focusing Knob 2-speed 1-speed
Sighting Aid Peep Sight Gun Sight
ACCURACY (1km double run leveling)
Without Micrometer 0.7 mm 1.5mm 2.0mm
With Micrometer 0.5mm 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
Minimum Division 1°/ 1gon
GENERAL
Water Resistance IPX6 (IEC 60529:2001)
Operating Temperature –20ºC to +50ºC
Size (W x L x H) 130mm x 215mm x 140mm H: 135mm
Weight 1.85 kg 1.7kg
AUTO LEVEL
Durable, Dependable,
Precise Auto Levels
n3 Models - 32x, 28x and
24x Magnifications
nRapid, Accurate, and Stable
Automatic Compensation
nUltra-Short 20cm Focusing
nAll-Weather Dependability
nEndless Fine Horizontal
Adjustments
AT-B
Series
Your local authorised Topcon distributor is:
* all technical changes are reserved by TOPCON, 07/2010
grafit-werbeagentur.de
The Leader in Positioning Technology ...
Topcon is the worldwide leading developer and manufacturer of
precision positioning equipment and offers the widest selection
of innovative precision GPS systems, laser, optical surveying,
machine control, GIS and agriculture products.
T205EN - English - A
www.topcon.eu

SPECIFICATIONS*
TELESCOPE AT-B2 AT-B3 AT-B4
Length 215 mm
Magnification 32X 28X 24X
Objective Aperture 42mm 36mm 32mm
Resolving Power 3“ 3.5“ 4“
Field of view 1°20‘ 1°25‘
(at 100 m) (2.3 m) (2.5m)
Minimum Focus 0.2m from end of telescope
0.3m from instrument center
Image Erect
Stadia Constant 0
Stadia Ratio 100
Focusing Knob 2-speed 1-speed
Sighting Aid Peep Sight Gun Sight
ACCURACY (1km double run leveling)
Without Micrometer 0.7 mm 1.5mm 2.0mm
With Micrometer 0.5mm 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
Minimum Division 1°/ 1gon
GENERAL
Water Resistance IPX6 (IEC 60529:2001)
Operating Temperature –20ºC to +50ºC
Size (W x L x H) 130mm x 215mm x 140mm H: 135mm
Weight 1.85 kg 1.7kg
AUTO LEVEL
Durable, Dependable,
Precise Auto Levels
n3 Models - 32x, 28x and
24x Magnifications
nRapid, Accurate, and Stable
Automatic Compensation
nUltra-Short 20cm Focusing
nAll-Weather Dependability
nEndless Fine Horizontal
Adjustments
AT-B
Series
Your local authorised Topcon distributor is:
* all technical changes are reserved by TOPCON, 07/2010
grafit-werbeagentur.de
The Leader in Positioning Technology ...
Topcon is the worldwide leading developer and manufacturer of
precision positioning equipment and offers the widest selection
of innovative precision GPS systems, laser, optical surveying,
machine control, GIS and agriculture products.
T205EN - English - A
www.topcon.eu