3. OPERATION
3.1 Starting Up
Press Power key for 3 seconds to power it on. If you see a sign “b”
like below, it means it is not levelled well. Adjust the tribrach screws to
level the theodolite more precisely until this Sign “b” disappears. You
can also turn off the compensation to skip this error (Refer to Session
5.6 to see how).
3.2 Laser Plummet (Optional)
Press the key of Laser Plummet to activate or disactivate the laser
plummet when mounting the theodolite on a tripod. The sign will
show as below.
3.3 Angle Measurement
3.3.1 Set Horizontal Angle to 0°
After aiming to the target, press 0SET twice to set the horizontal
angle to 0°. It only applicable for horizontal angle which is not in
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