e-survey ESL3 Skrócona instrukcja obsługi - Strona 4

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Check and Adjust the Circular Level

1. Adjust the leveling screws to center the bubble in the

circular level.

2. Turn the instrument 180° , and follow the following steps if

the bubble shifts.

3. Adjust the leveling screws, and move the bubble one half

of the shift to the center of the circular level.

4. Adjust the adjusting screws of the circular level with the

hexagonal wrench, and make the bubble in the center.

5. Repeat the above steps until the bubble does not shift when

the instrument turns to any direction.