Product Manual

Nikon XF Series Total Station Instruction Manual 17
Preparation 2
Centering using a plumb bob
1. Set up the instrument on the tripod. For detailed instructions, see Setting Up the
Tripod, page 15.
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.
Leveling
When you level the instrument, you make the vertical axis of the instrument exactly
vertical. To level the instrument, use the electronic level. In the leveling work, always
set the instrument in face 1 direction (please refer to the Fig.1.1 in page 3).
To level the instrument:
1. Move the bubble into the circle drawn on the
circular level and then turn on the power.
2. Rotate the alidade until the bottom edge of
the keyboard panel is parallel to the two of
the leveling screws (B and C).
3. Use leveling screws B and C to move the
bubble into the center of the electronic level.
4. Use leveling screw A to move the bubble into
the center of the electronic level.
5. Repeat Step 2 through Step 4 to center the bubble.
6. Rotate the alidade 180°.
7. If the bubble in the electronic level remains centered, the instrument is level. If
the bubble moves off center, adjust the electronic level. For detailed
instructions, see Adjusting the Electronic Level, page 36.
B C
A
Bottom edge of
the keyboard panel