Condenser and iris diaphragm:
The condenser can be focused by
turning the condenser knob (left
side) up or down, until the best
picture is being obtained. At high
magnifications the position should
normally be at the top.
The condenser has a built-in iris
with an iris handle for adjustment.
Closing the iris diaphragm decrea-
ses the light but increases the con-
trast and depth of sharpness of the
image. Adjustment of the iris diap-
hragm might be necessary when
switching between objectives.
The swing-out lens is used when
the 4x objective is used. When
using the other objectives this lens
is simply swung out.
It is important that the condenser is
aligned with the light path to obtain
the best resolution and contrast.
Centring of the condenser:
– Use the 4x objective and focus
on a specimen.
– Place the condenser in the top
position.
– Reduce the diameter of the light
cone by turning the field dia
-
phragm on top of the light hous-
ing. The light is now visible in the
eyepieces as a small round dot
in the field of view.
– Use the two clamp screws that
are mounted on the condenser
holder to centre the light cone in
the field of view. The two silver
coloured clamp screws are
mounted in a 45 degrees angle
compared with the other adjust-
ment knobs (for example the
focussing knobs).
– Turn on the field diaphragm on
top of the lamp housing until the
light cone follows the outer edge
of the field of view. It is opened
more and more until the light is
adequate.
– The condenser is now centred.
Field diaphragm:
The field diaphragm is placed on
top of the lamp housing, and can
be adjusted by turning it. At low
magnification it is normally open
and it is closed more and more
when the magnification increases.
The field diaphragm should never
be more open than the diaphragm
in the condenser.
Filters:
A blue filter can be placed in the fil-
ter holder just beneath the iris diap-
hragm. This can be an advantage
for example at greater magnificati-
ons, where it will give a more detai-
led image.
Bulb:
The bulb is placed in the lamp hou-
sing in the bottom of the main
microscope body. It is a 2-pin halo-
gen bulb 6 V / 20 Watt (Osram HLX
64250). The bulb must have the
correct Voltage and Wattage; othe-
rwise it might damage the micros-
cope’s electronic.
Fuse:
The fuse is mounted on the back
side of the main microscope body.
It can be found under the plastic
cover labelled “FUSE”.
Connecting the microscope to
mains
The microscope is developed for
the use with 220-240 V / 50-60 Hz.
General use of the microscope:
– Take out the main body and put
it on a plan and steady place.
– Hold on to the optical head, and
loosen the clamp screw on the
right side of the head. Turn the
optical head so that it faces the
correct way, and fasten it with
the clamp screw.
– Put the eyepieces into eyepiece
tubes.
– Put the mains cord in a socket
and turn on the microscope.
– Adjust the light intensity at mid
level with the brightness control
placed on the lover left side of
the microscope body. The inten-
sity of the light can be adjusted
to the desired level with this con-
trol slider.
– Place a specimen on its place on
the mechanical stage.
– Move the mechanical stage up
and down with the focusing
knobs to obtain a clear and
sharp image. The mechanical
stage can be moved on the Y-
axis and X-axis with coaxial
mounted control knobs.
– The part of the specimen that
you want to observe is placed in
the field of vision with these two
control knobs.
– It is necessary to adjust the eye-
piece tubes to fit the distance
between the eyes. This is done
by pulling or pushing the right
and left black eyepiece tubes.
The adjustment is finished, when
the image is comfortable and
shows a completely round
image. Notice the number on the
graduated scale on the front of
the optical head, and use this
number to make a quick adjust-
ment next time the microscope
is used.
– The microscope is then adjusted
to your sight to achieve a good
and sharp image. Look through
the right eyepiece with your right
eye. Use the fine focusing knob
to get a sharp image of the spe-
cimen. Then look with your left
eye through the left eyepiece
and adjust the sharpness with
the dioptre ring on the eyepiece
tube. The dioptre ring is the
PrimoX microscopes, binocular and trinocular
VE111200_10
Vareno. 111200_10
Rev. 19.06.2007
Gundlach A/S
Tel. +45 8694 1388
Silkeborgvej 765 · DK-8220 Brabrand
Fax +45 8694 2486
www.gundlach.eu
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