SHANGHAI ESURVEY GNSS CO., LTD.
16
5
Check and Adjustment
5.1
Check and Adjust the Plate Level
To check and adjust the plate level, do the following:
1. Level the plate level for precise leveling of the instrument.
2. Rotate the instrument 180° (200 gon), and observe if the bubble moves from the
center:
o
If it does, proceed to step
3
-
5
.
o
If not, no adjustment is required
3. Adjust the foot screw that is parallel to the plate level, and move the bubble half of
the shift to the center of the plate level:
4. To move the bubble the remaining half distance towards the center of the plate level,
adjust the adjusting screw of the plate level with the adjustment pin.
5. Repeat step
3
-
5
until the bubble can remain at the center of the plate level when the
plate level rotates to any position.
6. If there is still a problem, do the following:
a.
b.
c. Replace the plate level.
5.2
Check and Adjust the Circular Level
To check and adjust the circular level, do the following:
1. Level the plate level for precise leveling of the instrument.
2. Observe if the bubble of the circular level is within the circle:
o
If it is, no adjustment is required.
o
If not, proceed to step
3
.
3. Adjust the two bubble adjusting screws with the adjustment pin:
