Topcon OS-101 User Manual

37
8. SETTING UP THE INSTRUMENT
5. Turn the instrument until the telescope is parallel
to a line between levelling foot screws A and B.
6. Set the tilt angle to 0° using foot screws A and B
for the X direction and levelling screw C for the Y
direction.
7. Loosen the centering screw slightly.
Looking through the optical plummet eyepiece, slide
the instrument over the tripod head until the survey
point is exactly centered in the reticle.
Retighten the centering screw securely.
If the instrument is levelled using laser plummet,
emit the laser plummet beam and check it again.
"8.1 Centering PROCEDURE Centering with
the laser plummet (Option)"
8. Check again to make sure the bubble in the electric
circular level is centered.
If not, repeat the procedure starting from step 6.
9. Press {ESC} to return to Observation mode.

Topcon OS-101 Specifications

General

Brand	Topcon
Model	OS-101
Category	Measuring Instruments
Language	English