Viva Series, User - Check & Adjust 644
30.9 Adjusting the Circular Level of the Instrument and Tribrach
Adjusting the circular
level
Step Description
1. Place and secure the instrument into the tribrach and onto a tripod.
2. Using the tribrach footscrews, level the instrument with the electronic level. Press
the hot key configured to access Level Bubble & Compensator, for example Fn
(F12).
3. Check the position of the circular level on the instrument and tribrach.
4. a) If both circular levels are centred, no adjustments are necessary
b) If one or both circular levels are not centred, adjust as follows:
Instrument: If it extends beyond the circle, use the supplied allen key to centre
it with the adjustment screws. Turn the instrument by 200 gon (180°). Repeat
the adjustment procedure if the circular level does not stay centred.
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