AT-B4A Topcon automatic level
Product Description
|
elescope
|
AT-B4A
|
|
Magnification
|
24x
|
|
Field of view
|
1°25’
|
|
Min. focus from center
of the instrument
|
0.3mm
|
|
Image
|
Erect
|
|
Stadia
|
Yes(1:100)
|
|
Focusing knob
|
1-speed
|
|
Accuracy （1km double run leveling）
|
|
|
Focusing knob
|
2.0mm
|
|
With micrometer
|
N/A
|
|
Compensator
|
|
|
Type
|
Pendulum compensator with magnetic damping system
|
|
Setting accuracy
|
0.5‘’
|
|
Working range
|
±15’
|
|
Horizontal circle
|
|
|
Minimum division
|
1°/1 gon
|
|
General
|
|
|
Water rating
|
IPX6(IEC 60529: 2001)
|
|
Operating temp
|
-20℃ to 50℃
|
|
Width
|
122mm
|
|
Length
|
214mm
|
|
Height
|
140mm
|
|
Weight
|
1.5kg
|
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