Topcon AT-B4 User Manual

5. PRELIMINARIES
10
5 Hold the instrument on the tripod head and tighten
the centering screw.
6 When using the spherical head
tripod, slightly loosen the
centering screw, hold the base
plate in both hands, and slide it
across the tripod head until the
bubble is in the proximity of the
circular level.
7 Tighten the centering screw.
8 Adjust the leveling foot screws
until the bubble is exactly
centered in the center circle.

Topcon AT-B4 Specifications

General

Brand	Topcon
Model	AT-B4
Category	Tools
Language	English