SPECTRA PRECISION FOCUS 2 SERIES TOTAL STATION USER GUIDE
2 –
Preparation
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a. Looking through the optical plummet, reconfirm the station point image is still centered in
the reticle mark.
b. If a slight displacement of the station point is detected, loosen the tripod mounting screw
and correct the instrument’s positioning with direct movement (not rotational). If the
displacement of the station point is major, repeat this procedure from Step 2.
Centering using a plumb bob
1. Set up the instrument on the tripod. See Setting up the tripod, page 26.
2. Hang the plumb line on the hook of the tripod mounting screw.
3. Adjust the length of the plumb line so that the tip of the plumb bob is at the height of the station
point.
4. Loosen the tripod mounting screw slightly.
5. Using both hands to support the outer side of the tribrach, carefully slide the instrument about
on the tripod head until the tip of the plumb bob is positioned over the exact center of the
station point.
Note –
To confirm that the instrument is precisely aligned, check its position from two directions at
right angles to each other.
