Preparations For Measurement; Mounting And Leveling - David White DWT-10 Instruction Manual

2. PREPARATION FOR MEASUREMENT

2.1 Mounting And Leveling

Mount and level the instrument carefully to get the best performance.
1. Place the tripod over the ground datum point and tighten the legs.
2. Attach the instrument to the tripod and tighten snugly
3. Roughly level the instrument with the circular vial
A) Use level screws "A" and "B" to
move the air bubble in the circular
vial so it is centered left to right.
4. Fine tune level the instrument with the plate level:
A) Turn the instrument until the plate
level is in either one of the positions
shown. Then use the "A" and "B" level
screws to center the bubble in the
level.
C) Repeat steps A and B until the level stays centered in any direction. If the plate level
will not stay centered, see section 5.2 to adjust the vial.
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B) Use level screw "C" to move the air
bubble to the center of the vial.
B) Turn the instrument 90° (100 g)
and center the air bubble in the vial
using level screw "C".