Leveling With Circular Vial - Pentax W-821NX Basic Instruction Manual

3.3 Leveling with circular vial

Tripod is adjusted according to the following points by extending or contracting the legs so that
the bubble of the Circular vial goes to the center of the circle.
• Shorten the leg at the side of the bubble or extend the leg opposite of the bubble to
position the bubble in the center of the vial circle.
• All three legs are extended or contracted until the bubble is in the center.
During this process, the foot is not placed on the tripod leg point and the position of the
tripod points do not change.
Rotate instrument horizontally and make two
Å
Leveling screws arbitrarily chosen parallel to the display.
Turn on the Electronic vial function.
Ç
Put the bubble of the Circular vial in the center of the
circle when the display shows "TILT OVER" .
Turn two Leveling screws arbitrarily chosen in an
É
opposite direction mutually and put the vial of the
horizontal Electronic vial in the center. (Figure A)
Put the bubble of the lengthwise Electronic vial in
Ñ
the center by operating the Leveling screw of one
remainder. (Figure B)
The procedures are different according to the state of
Ö
the Automatic inclination correction as following.
Confirm whether the plummet is on the ground mark.
Ü
When you confirm it is not on the mark, loosen the center screw and move the instru-
ment over the ground mark correctly and fix the instrument by a center screw. Repeat
from Å to Ü
[When using the Automatic inclination correction by 2 axis]
Please read procedure Ü because the horizontal angle and the perpendicular angle error by
a perpendicular axis are automatically corrected.
[When using the Automatic inclination correction by 1 axis]
The instrument is horizontally rotated by 180° after the bubble of the Electronic vial is adjusted
on the center at a Left circle position side and confirm that the bubble of the vial is at the center
at the right circle position.
[When using without Automatic inclination correction]
Confirm the bubble is at the center even if the instrument is rotated by each 90°.
[Note]
Display or indication of the electronic plummet vary depending on the software to be installed.
For more details, please refer to the user manual of the application software.
22