Leica Geosystems Leica DISTO D8 - Manual (Page 16)

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13 Leica DISTO™ D8 LCA782206a en Functions
Indirect measurement
The instrument can calculate distances using Pythagoras’ theorem.
This procedure is helpful, if the distance to measure can not be reached
directly.
)
Make sure you adhere to the prescribed sequence of measu-
rement:
•
All target points must be in a horizontal or vertical plane.
• The best results are achieved when the instrument is rotated about a
fixed point (e.g. with the positioning bracket fully folded out and the
instrument placed on a wall) or the disto is mounted on a tripod.
• 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.
Indirect measurement - determining a distance using 2
auxilliary measurements
See figure {P}
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
measurements.
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 hori-
zontal as possible.
Press and hold down this button to trigger continuous measurement
, sweep the laser back and forth and up and down over the ideal target
point.
Press to stop continuous measurement (2). The result is displayed in
the summary line, the partial results in the secondary line.
Press and hold the key to display additional information about the
measurement of the angles of the triangle and .
Indirect Measurement - determining a distance using 3
measurements
See figure {Q}
Press this button twice; the display shows the following symbol .
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 continuous measurement
, sweep the laser up and down over the ideal target point.
Press to stop continuous measurement (2). The value is adopted. Aim
at the lower point and
press this button to trigger the measurement (3) . The result is
displayed in the summary line, the partial results in the secondary lines.
Press and hold the key to display additional information about for
example the partial distances , and the minimum distance .
Indirect measurement - determining a partial value using
3 measurements
See figure {R}
e.g. determining the height between point 1 and point 2 using three target
points.
Press this button three times ; the display shows the following
symbol . The laser is switched on.
Aim at the upper point (1).