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3. FEATURES OF AT-B2/B3/B4
The AT-B2/B3/B4 is equipped with a fast-action,
magnetically-damped, automatic compensator. After
the instrument has been approximately leveled using
the circular level, the line of sight is accurately leveled
by the automatic compensating mechanism.
The AT-B2/B3/B4 has been designed to allow stable
surveying operations regardless of environmental
conditions such as vibration and temperature changes.
The AT-B2/B3/B4 has a simple horizontal circle for
angle measurement, and the stadia lines on the reticle
can be used for approximate distance measurement.
The AT-B2/B3/B4 is ideally suited for general survey
work, civil engineering and construction work.
$
• The instrument is accurately leveled when the
bubbleis within the center circle of the circular level.
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