Product Manual

13.5 Calibrating the Circular Level of the Instrument and Tribrach
1 Place and secure the tribrach onto the tripod, and then secure the instrument onto the tri-
brach.
2 Using the tribrach footscrews, level the instrument with the electronic level. To activate the
electronic level, turn on the instrument, and, if tilt correction is set to 1- or 2-axis, the
Level & Plummet screen appears automatically. Alternatively, press FNC from within any
application and select Level & Plummet.
3 The bubbles of the instrument and tribrach levels must be centered. If one or both circular
levels are not centered, adjust as follows.
Instrument: If the bubble extends beyond the circle, use the Allen key supplied to center it
with the adjustment screws.
Tribrach: If the bubble extends beyond the circle, adjust it using the adjustment pin in conjunc-
tion with the adjustment screws. Turn the adjustment screws:
•
To the left: and the bubble approaches the screw.
•
To the right: and the bubble goes away from the screw.
4 Repeat step 3 on the instrument and tribrach until both circular levels are centered and no
further adjustments are necessary.
After the calibration, no adjustment screw should be loose.
13.6 Inspecting the Laser Plummet of the Instrument
The laser plummet is integrated into the vertical axis of the instrument. Under normal conditions
of use, the laser plummet does not need adjusting. If an adjustment is necessary due to external
influences, the instrument has to be returned to a GeoMax service department.
Calibrate the circular level
step-by-step
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122 Calibration