Optical Plummet - Sokkia 30R Series Operator's Manual

26. CHECKS AND ADJUSTMENTS
26.6

Optical Plummet

PROCEDURE Checking
1. Carefully level the SET and center
a surveying point precisely in the
reticle of the optical plummet.
2. Turn the upper part through 180°
and check the position of the
surveying point in the reticle.
If the surveying point is still
centered, no adjustment is
necessary.
If the surveying point is no longer
centered in the optical plummet,
perform the following adjustment.
PROCEDURE Adjustment
3. Correct half the deviation with the
levelling foot screw.
4. Remove the optical plummet
reticle cover.
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