Spectra Precision Focus 6, User Manual

Page: 158 / 199

6
Checking and Adjustment
156
Spectra Precision Focus 6 5" Total Station User Guide
Adjusting the electronic level
Adjustment of the electronic level is done by Zero point errors of vertical scale and
horizontal angle corrections. For detailed instruction, please see
page 157 .
Checking and adjusting the circular level
Once you have checked and adjusted the
electronic level, check the circular level.
If the bubble is not in the center of the level, use
the adjusting pin to rotate the three adjustment
screws of either circular level on the instrument
main body or tribrach until the bubble is centered.
Checking and adjusting the optical/laser plummet
The optical axis of the plummet must be aligned with the vertical axis of the
instrument.
To check and adjust the optical/laser plummet:
1. Place the instrument on the tripod. You do not have to level the instrument.
2. Place a thick sheet of paper marked with an X on
the ground below the instrument.
While you are looking through the optical
plummet, adjust the leveling screws until the
image of the X is in the center of the reticle
mark
.
For laser plummet, adjust the laser pointer to the
X.
3. Rotate the alidade 180°.
If the marked image is in the same position in the
center of the reticle mark, no adjustment is
required
For laser plummet, if the laser pointer is on the X,
no adjustment is required.
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