Bresser National Geographic 90-33000 Mode D'emploi page 9

Range fi nders can be widely used in sports and activities like golf
and hunting to measure the distance, of buildings or electrical
wire poles, as well as to measure the general terrain.
Fig. 1 shows the shape of the range fi nder.
Inserting the battery
Slide the battery compartment cover (Fig. 1, 6) out using your
thumb, and raise it up. Insert the 9V compound battery into the
compartment, padded corners fi rst.
NOTE:
i
Make sure when inserting the battery that
the polarity is correct (+/–) as shown on
the compartment cover.
After inserting the battery, press the cover down again,
and slide it back to its original position against the direction of
the arrow on the cover.
Operation
1. Look through the eyepiece (Fig. 1, 1). As this device has a
fi xed focus system, there is no need to focus manually.
2. Depress the function button (Fig. 1, 5) for about 3 seconds
to turn the device on. Now when you look into the eyepiece
(Fig. 1, 1), the function symbols appear in the lens coverage
(Fig. 2).
3. To measure distance, aim the central circle (Fig. 2, 1) at the
object, and then press the function button (Fig. 1, 5) briefl y.
The distance of the object will be shown at the top of the func-
tion display.
4. When turning on the device, the measurement unit last used
(M, for metres, or Y, for yards) (Fig. 2, 2/3) will appear. This
can be changed by pressing the mode button and holding it
down after turning the range fi nder on. The measurement unit
in the display will then change.
5. The power will be switched off automatically after approxi-
mately 15 seconds if the distance-measuring instrument is
not used.
NOTE:
i
Distance measuring with the range fi nder is affec-
ted by the characteristics of the object (i.e. color,
surface fi nish, size and shape), the angle of the
emitted laser beam to the target and the lighting
conditions (e.g. the visibility due to the weather).
If the object is large, the color of the object is bright (highly re-
fl ective), the surface is smooth and shiny and the laser beam is
perpendicular to the surface of the object, the maximum range
is increased. Conversely, if these conditions are not met, the
maximum range is decreased.
Measurement precision may be infl uenced by grass, leaves,
twigs and other debris covering the object.
EN
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