64
1.
After leveling the instrument, aim at the target F1 in the collimator with
direct telescope and record the current vertical angle as V0.
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. Press ‘ENT’ to confirm
after a stable readout appears.
3.
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.
4.
Set the vertical angle to V0 with the help of vertical tangent screw. Adjust
the screw C to aim at the target precisely.
5.
Aim at the target F2 in the collimator with reverse telescope and record
the current vertical angle as V1.
6.
Set the vertical angle to V1-3
′w
ith 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.
7.
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.
Tips:
Don’t worry if you cannot remember the exact order of steps.
All the above will be displayed on the screen as small prompts. e.g‘F2 Up 3
′
’.
The instrument will then calculate out and display the correction constant and
the difference between the compensator axis and the vertical axis of the instrument.
Press ‘ENT’ to save the new calculated parameters, otherwise press ‘ESC’ to quit
and the previous correction constant remains.
Note:
Co.k (linear coefficient) must be less than 1.5;
Co.Z (zero position) is normally between -20 and +20, otherwise the compensator
(tilt) must be adjusted mechanically.
9.6.3.
Add const&Mul. Const
Operations are permitted only when the instrument has been tested strictly. We
recommend you to set it after it is tested by the factory or professional verification
institutions.
9.6.4.
Date and Time
The order of the entered figures is:
Summary of Contents for Total Station ATS-120 Series
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