SHANGHAI ESURVEY GNSS CO., LTD.
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8.2 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:
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