User Manual
Total Station Manual
205
Adjust the focal length of the optical plummet (for the optical plummet) or switch
on laser plummet, move the white paper to make the cross in the center in the
field of view (or laser flare).
Turn the feet screw, make the center mark of the plummet coincide with the cross
center.
Rotate alidade, every turn of 90 °, observe the contact ratio of the optical
plummet and cross center.
When rotate the alidade, the center of the optical plummet always coincide with
the cross center, there is no need to calibrate. Otherwise you should calibrate as
the following methods.
Calibration
Take down the screw cover between the optical plummet eyepiece and the
focusing handwheel.
Fix the white paper with a cross, and mark the points when the instrument rotates
90 °, as the figure shows A, B, C, D points.
Connect the diagonal points A
ǃ
C and B
ǃ
D with a straight line, the intersection
name of the two line is O.
Use the calibration needle to adjust the four calibration screw, to make the center
mark of the plummet coincide with point O
Repeat Step 4, check and calibrate until it meet therequirements.
With the laser plummet, unbolt the laser cover, using 1 # hex wrench to adjustthe
three screws, fasten one side and loosen the other side, and adjust the laserflare
to point O.
Put the cover back in place.