Bresser BIOLUX Advance Mode D'emploi page 17

NOTE!
Pay attention to the polarity as
marked on the battery holder
terminals.
As your device has continuously controllable
lighting (dimmer) optimal illumination of the
object to be viewed is guaranteed.
3. Colour filter disc
The colour filter under the microscope
table (Fig. 1, 19) aids in viewing very bright
and transparent objects. Just select the
right colour for the specimen in question.
The components of colourless/transparent
objects (e.g. starch particles, single-cell
-specimens) can thus be better recognised.
4. Microscope setup
Begin every observation with the lowest
magnification.
Place the microscope's table (Fig. 1, 8) with the
focus knob (Fig 1, 9) into the lowest position
and rotate the objective revolver (Fig. 1, 7) until
it locks on the lowest magnification (4x).
nOTe:
First, drive the Microscope's
table (Fig. 1, 8) to its lowest
position before changing the
objective in order to prevent
damage.
Insert the 5x eyepiece (Fig. 4, 1) in the Barlow
lens (Fig. 4, 3).
Take care, that the Barlow lens is inserted
completely in the monocular head (Fig. 4, 5).
5. Observation
After you have set up the microscope with
the corresponding illumination, the following
principles are important:
Begin each observation with a simple
observation at lowest magnification, so that
the centre and position of the object to be
viewed is in focus.
The higher the magnification the more light is
required for good picture quality.
Place a slide with permanent with permanent
specimen (Fig. 3, 15) right under the objec-
tive lens on the microscope table (Fig. 3, 8)
and secure it in place with the clamps (Fig.
3, 11). The specimen must be precisely sited
in the centre of the lighting (Fig. 3, 10). If it
is not, move the slide to the left and right as
well as back and forth until it is centered over
the lighting.
Look through the eyepiece (Fig. 1, 1) and turn
carefully the focusing wheel (Fig. 1, 9) until
you can see a sharp picture.
Now you can get a higher magnification, while
you pull out slowly the Barlow lens (Fig. 5,
3) of the monocular barrel (Fig. 5, 5). With
the nearly entirely pulled out Barlow lens the
magnification is raised to 2x.
TiP:
i
Depending on the preparation
higher magnifications
not always lead to better
pictures.
With changing magnification (objective lens
changes, pulling out of the Barlow lens) the
sharpness of the image must be newly defined
by turning the focusing wheel (Fig. 1, 9).
nOTe:
Please be very careful when
doing this. When you move
the mechanical plate upwards
too fast the objective lens
and the slide can touch and
become damaged.
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