Operation; Setting, Leveling And Centering - GPI -ZL21R Instruction Manual

4. Operation

4.1 Setting, leveling and centering

Setting up the tripod on the measure-station point and
put the instrument on tripod head, then attach it to the
tribrach by the center screw. Adjust the height of
tripod to make eyepiece on same level with sight line.
Adjust tripod to make bubble centering. Switch on
the power and adjust the focusing knob to move laser
beam located the ground mark point.
Fig. 3
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