1.3.3
STATION ESTABLISHMENT CHAPTER 3
GEODIMETER SYSTEM 600
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Switch on the instrument and place the display of the
instrument parallel to two of the foot screws of the
tribrach.
Level the instrument by first rotating the foot screws
in the normal theodolite levelling manner – i.e, equal
and opposite to each other
Rule: The lower bubble will follow the direction of the left
thumb.
When the cursor is in the correct position you adjust
the upper bubble with the third foot screw, without
rotating the instrument. Clockwise rotation of this
screw will move the cursor to the right. Levelling must
be within 6 , otherwise a warning signal will be given
after attempting to calibrate the compensator. The
electronic level at this stage is in the "coarse
mode"(see fig 3.3). "Fine mode" is achived after
calibration of the dual-axis compensator.
At intervals during measurement you can view the
electronic levelling bubble whenever you wish, simply
by pressing the level symbol key. See more about the
electronic level key on page 1.1.21.
Startup
Electronic
Level Key
c
11:36
Fig 3.3 Display when level appears thus "coarse mode"
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