Indirect measurement – Leica Geosystems Leica DISTO D3 User Manual
Page 16
12
Functions
EN
F
E
P
in the summary line between the stake out point
(first a and then b) and the instrument (rear refer-
ence).
If the DISTO™ is then moved slowly along the stake
out line the displayed distance decreases. The instru-
ment starts to beep at a distance of 0.1m from the
next stake out point.
The arrows in the display
indicate in which direc-
tion the DISTO™ needs to be moved in order to
achieve the defined distance (either a or b). As soon
as the stake out point is reached the beep changes
and the intermediate line starts to flash.
The function can be stopped at any time by pressing
the
button.
Indirect measurement
The instrument can calculate distances using Pythag-
oras’ theorem.
This method is especially helpful if the distance to be
measured is difficult to reach.
)
Make sure you adhere to the prescribed
sequence of measurement:
•
All target points must be in a horizontal or vertical
plane.
•
The best results are achieved when the instru-
ment is rotated about a fixed point (e.g. with the
positioning bracket fully folded out and the
instrument placed on a wall).
•
The minimum/maximum function can be used -
see explanation in "Measuring -> Minimum/
maximum measurement". The minimum value
must be used for measurements at right angles to
the target; the maximum distance for all other
measurements.
)
Make sure that the first measurement and the
distance to be measured are at right angles. Use the
Minimum/maximum function, as explained in
"Measuring -> Minimum/maximum measurement".
Indirect measurement - determining a dis-
tance using 2 auxilliary measurements
See figure {M}
e.g. for measuring building heights or widths. It is
helpful to use a tripod when measuring heights that
require the measurement of two or three measure-
ments.
Press this button once, the display shows
.
The laser is switched on.
Aim at the upper point (1) and trigger the
measurement. After the first measurement the value
is adopted. Keep the instrument as horizontal as
possible.
Press and hold down this button to trigger
a
b
b