TOPCON AUTOMATIC LEVEL AT-B4A
SPECIFICATIONS
TELESCOPE
Length : 214mm (8.42in.)
Magnification : 24X
Objective Aperture : 32mm (1.26 in.)
Resolving Power : 4”
Field of View (at 100m/328ft.) : 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
Focusing Knob : 1-speed
Sighting Aid : Gun Sight
ACCURACY (1KM DOUBLE RUN LEVELING)
Without Micrometer : 2.0mm (0.08 in.)
With Micrometer : n/a
COMPENSATOR
Type : Pendulum compensator with magnetic damping system
Setting Accuracy : 0.5"
Working Range : ±15'
CIRCULAR LEVEL
Sensitivity : 10' / 2mm
HORIZONTAL CIRCLE
Diameter : 99mm (3.9in.)
Minimum Division : 1°/ 1gon
GENERAL
Water Resistance : IPX6 (IEC 60529:2001)
Operating Temperature : -20 to +50ºC (-4 to +122°F)
SIZE
Width : 122mm (4.8in.)
Length : 214mm (8.4in.)
Height : 140mm (5.51in.)
Weight : 1.5kg (3.3lbs.)
Include
1 Unit. Aluminium Triod
1 Unit. Rambu Ukur 3 Meter
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