Product Manual

Table Of Contents

calculate the total instrument height (Ih), insert the measured

slope distance (Hm) into the formula below:

Adjusting the

Optical Plummet

1. Set up the instrument and level it over a ground mark so

that the tripod height is 1.5 m (±0.1 m) (4.920 ft. (±0.328 ft.)).

2. Note the position of the inner circle of the optical plummet

in relation to the ground mark.

3. Turn the instrument 200 grads (180 degrees).

4. Note the position of the inner circle of the optical plummet

in relation to the ground mark. If the inner circle of the

optical plummet reticule moves in relation to the ground

mark, you must adjust the plummet reticule location.

5. Adjust out half of the error with the four adjustments

screws on the optical plummet.

6. Turn the instrument 200 grads (180 degrees).

7. If there is no movement between the inner circle of the

optical plummet reticle in relation to the ground mark, no

further adjustment is needed.

C CAUTION - When adjusting the optical plummet with the

four adjustment screws it is important that the screws are

correctly adjusted. When one screw is adjusted the

opposite screw must be adjusted equally in the reverse

direction, in order to keep the correct tension on the

optics. Do not over tighten the screws, this might damage

the optics.

Ih 0 158 Hm

0 091

–+=