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15.CHECK AND ADJUSTMENT
The instrument has been checked and adjusted thoroughly at the factory to insure the
instrument meets our quality requirements. But long distance transportation and the change
of the environment could cause the instrument to go out of adjustment. It is recommended
before using the instrument it should be checked and adjusted according to the procedures
outlined below.
15.1 Plate Vial
Inspection
Refer to Instrument Set Up and “Leveling by using the plate vial”
Adjustment
1. If the bubble of the plate vial moves away from the center, bring it half way back to the
center by adjusting the leveling screw, which is parallel to the plate vial. Correct the
remaining half by adjusting the screw of plate vial with adjusting pin.
2. Confirm whether the bubble is in the center by rotating the instrument 180º. If not,
repeat Step 1.
3. Rotate the instrument 90ºand adjust the third screw to center the bubble in the vial.
Repeat checking and adjustment steps until the bubble remains in the center with the vial
in any direction.
