99
VA:
Enter
Tilt
90°00′00″
X= 125
F1 Up 3′
1)
After leveling the instrument, aim at the target F1 in the
collimator face left, record the current vertical angle as
V0.Set the vertical angle to ‘V0-3′’with the help of the
vertical tangent screw. Adjust the screw C to aim at the
target precisely. Press [ENT] to confirm after a stable
readout appears;
2)
Set the vertical angle to V0+3′with the help of the
vertical tangent screw. Adjust the screw C to aim at the
target precisely and press ‘ENT’ to confirm after a
stable readout appears.
3)
Set the vertical angle to V0 with the help of vertical
tangent screw. Adjust the screw C to aim at the target
precisely.
4)
Aim at the target F2 in the collimator with reverse
telescope and record the current vertical angle as V1.
5)
Set the vertical angle to V1+3′with the help of the
vertical tangent screw. Adjust the screw C to aim at the
target precisely and press ‘ENT’ to confirm after a
stable readout appears;
6)
Set the vertical angle to V1-3′with the help of the
vertical tangent screw. Adjust the screw C to aim at the
target precisely and press ‘ENT’ to confirm after a
stable readout appears;
There are prompts which are “F1 Up 3′, “F1 Down 3′”, “F2
Up 3′, “F2 Down 3′” during the four steps.
The instrument will then calculate out and display the
