Stonex R25/R25LR Total Station - User Manual 108
10.5. Laser plummet
I. Check
1. Set the instrument on stable device and fix it.
2. Set a cross mark on the ground under the instrument.
3. Turn the three leveling screws until the instrument keeps leveling and the laser spot coincides with the cross
mark on the ground.
4. Rotate the instrument 180°(200gon) around and check the laser spot and cross mark if they coincide,
adjustment is not required. Otherwise, adjust it.
II. Adjustment
1. Set the instrument on stable device and fix it.
2. Set a cross mark on the ground under the instrument.
3. Turn the three leveling screws until the instrument keeps leveling and the laser spot coincides with the cross
mark on the ground.
4. Rotate the instrument 180°(200gon) around and take off the protecting cover of the
laser plummet, adjust the three adjusting screws with the screwdriver to move the
laser spot to the cross mark, correct only one-half of the displacement in this
manner.
5. Repeat operations 3 and 4 until the instrument keeps leveling and the laser spot
coincides with the cross mark when rotating alidade of instrument to any direction.
10.6. Vertical cross-hair on telescope
I. Check
1. Set the instrument up the tripod and carefully level it.
2. Set a point A front the instrument 50m apart.
3. Collimate the point A and adjust the vertical tangent screw; If the point appears to move continuously on the
hair, adjustment is not required. Otherwise, adjust it.
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