Ada VERTICAL А00364 [8/34] Vertical

VERTICAL

MEASUREMENT FOUNDATION

Fine adjustment with tubular level:

1) Turn the instrument in order to make the tubular level (13) parallel to the

line that goes through the foot screws A and B (pic.4);

2) Turn the foot screws A and B to make the bubble move into the middle

of tubular level (13);

3) Turn the instrument so that the tubular level (13) will be perpendicular

the line that goes through the foot screws A and B. Turn the foot screw C to

make the bubble move into the middle of tubular level (pic.5);

4) Repeat above described procedure only after turning the instrument, so

that the bubble will be in the center of tubular level.

Switch-on

1) Turn laser screw (5) to turn on laser dot of the marker of plumb down. Bright laser spot is projected on the target. Continue to

turn screw (5) to adjust the brightness of the laser spot;

2) Loosen central screw of the tripod. Move the instrument carefully on the tripod until the laser dot is on the reference point;

3) Repeat steps 4.3.2 for ne leveling of the instrument. Be sure, laser dot must be on the reference point.

Preparation before vertical measurements

Place laser target onto the place of the reference point. Turn screw (4) to switch on laser dot of the marker of plumb up. Rotate

focusing screw (2) to get accurate image of laser dot and marking on the laser target. If you need to increase the accuracy you

can use the method of the measurement of diameter:

1) Turn the graduated limb so that zero on the scale coincide with hairline on the housing of the instrument;

2) Mark up the position of laser dot;

3) Turn the instrument by 180° and mark up new position of laser dot;

Middle point between these two points is the reference point.

Pic.4 Pic.5