Storch Digi Dist Mode D'emploi page 86

Double Pythagorean Theorem
measurement
Use the double Pythagorean Theorem measurement
mode if one end of a section to be measured is indi-
rectly higher than the measuring position and the
other end of this section is lower than the measuring
position.
The section BC is to be determined in the illustrated
example (fig. 19); A is the measuring position. The
sections AB, AO and AC must be measured for this
purpose. AO and BC must form a right angle.
1. Press the Mode button (4) to select the double
Pythagorean Theorem measurement mode (fig.
20).
2. The flashing line in
be measured.
3. Press the Read button to activate the laser beam;
the laser indicator will flash.
4. Position the device in such a way that the laser is
aimed at point B.
5. Press the Read button to display the measured
length of AB on the first line of the screen (fig. 21).
6. The flashing line in
be measured.
7. Without changing device position A aim the laser
perpendicularly at target O.
8. Press the Read button to display the measured
length of AO on the second line of the screen (fig.
22).
9. The flashing line in
be measured.
10. Without changing device position A aim the laser at
target C.
11. Press the Read button again to display the indirect
length of BC on the bottom line of the screen; the
section AC is simultaneously displayed on the third
line (fig. 23).
12. Press the Read button to conduct a new measure-
ment.
indicates the distance AB to
indicates the distance AO to
indicates the distance AC to
86
Fig. 19
Fig. 20
Fig. 21
Fig. 22
Fig. 23