4.3 Leveling with the Plate level
After [4.2 Leveling with the circular vial] is completed, instrument must be leveled with plate vial.
1Place the plate vial in parallel with a line joining any two of the leveling screws. By rotating two leveling screws in the opposite direction of each other, position the bubble in the center of the vial (See A)
2Rotate the plate vial through 90°, position the bubble in the center of the vial by operating the remaining one leveling screw (See B)
3Confirm if the bubble stays in the center by rotating the instrument 180°.
If the bubble moves, repeat procedure 1 and 2 .
For the relationship between the screw adjusting direction and bubble moving direction, refer to the arrows of following figures. Bubble will move to the left in figure A, while in figure B moves upward.
When the bubble is not positioned in the center by repeating procedure
1and 2 in procedure 4.2 , adjustment is required. (Refer to [6.Inspection and Adjustment.])
Plate vial
(A)(B)
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