LaserLiner AL 22 Instrucciones De Uso página 14

Measuring methods
Distance determination
1. Read values of the upper
graduation mark (O = 1,44 m) and
the lower graduation mark (U =
1,36 m).
2. Multiply the difference by the
factor 100 (E = 100 x e), the result
is the distance E = 8 m.
Advice for 3.1 - 3.3:
In order to get reliable results, the
following rules should be obeyed:
- make sure the distances to the
aims are equal
- see to an exact vertical
positioning of the staff
- avoid tripod and staff from
sinking into the ground
- avoid reading errors
Angle measurement
1. Attach the string of the plumb
bob to the hook and then place the
tripod over the point in a way that
the plumb bob is already close to
the point. The top of the tripod
should be as horizontal as
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O=1,44 m
e
U=1,36 m
possible. Tread legs of tripod
firmly into the ground.
2. Attach instrument to tripod and
fix it. Now centre the plumb bob
exactly over the point by adjusting
the lenghts of the tripod legs or by
changing the position of the
instrument on the tripod.
3. With the aid of your iron sights,
aim telescope at the first aim,
align by using the lateral fine
adjustment. First aim = known
point. Now turn knurled ring until
the index and the zero position of
the horizontal dial are congruent
(turn dial onto zero).
4. Aim telescope at the second aim
and read the angle function under
the index marking.
W
E