Trimble TX8 - Centering over a known point

3 Setup
Centering over a known point
If the tribrach supplied with your TX8 scanner comes with an optical plummet, perform the steps
below.
1.
Look through the optical plummet eyepiece on the tribrach.
2.
Rotate the cross-hairs ring on the eyepiece until the cross-hairs appear clear, then rotate the
focusing ring on the eyepiece to focus on the control point.
3. Look again through the optical plummet eyepiece. If the cross-hairs are not exactly over the
control point on the ground, do one of the following:
l l Move the tripod to align the cross-hairs with the control point.
Trimble TX8 3D Laser Scanner User Guide 39