Gundlach Primomic 114005 User manual

Manual for Primomic
microscopes
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Construction of the
microscope:
Objectives:
All objectives are produced accor-
ding to DIN-standard. 40x and 100x
objectives have a spring mount to
avoid breakage of specimens and
objectives. The four-hole objective
revolver makes it easy to change
between the different objectives.
Some versions of the microscope
have a 60x objective instead of the
100x objectives. This 60x objective
also has a spring mount.
Focusing knobs and stage
stop adjustment:
The coaxial coarse and fine adjust-
ment knobs make it easy to attain a
sharp image. A vertical finger screw
is placed behind the mechanical
stage. When the lock nut is loose-
ned it is possible to turn the finger
screw, and thereby settle the upper
limit of the stage movement. This
protects the specimen from tou-
ching and/or damaging the objecti-
ves. The stage stop adjustment
(specimen protection) will also
make it easier to focus fast. The
microscope is delivered with a pre-
set stage stop adjustment and it
should therefore not be required to
make further adjustments.
Mechanical stage:
The specimen is placed on the
mechanical stage by pulling back
the movable handle of the speci-
men holder. Gently release the
handle and the specimen is placed
securely. The mechanical stage can
then be moved in the X and Y-axis
with the coaxial mounted knobs on
the vertical axle.
Condenser and iris diaphragm:
The condenser can be focused by
turning the condenser knob (left
side) up or down, until the best
image is obtained. The condenser
has a built-in iris diaphragm with a
little handle for adjustment. Closing
the iris diaphragm decreases the
light but increases the contrast and
depth of sharpness of the image.
Adjustment of the iris diaphragm
might be necessary when switching
between objectives.
Filters:
Filters of various colours can be
placed in the filter holder just bene-
ath the iris diaphragm. This can be
an advantage for example at grea-
ter magnifications where it will give
a more detailed 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).
Fuse:
The fuse is mounted in the bottom
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 85-265 V / 50-60 Hz.
This is also apparent from the label
on the back of the microscope.
General use of the microscope:
- Put the microscope on a dry and
clean place.
- Place the optical head in the hole
at the top of the microscope
stand. Fasten it with the clamp
screw or the internal hexagon. In
the last case a hexagonal socket
wrench is enclosed.
- 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 right 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 the mecha-
nical stage.
- If the optical viewing head is
binocular it is necessary to adju-
st the eyepiece 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 finis-
hed, when the image is comfor-
table and shows a completely
round image. Notice the number
on the graduated scale on the
Manual for Primomic microscopes VE11400x
Item no. 114005 + 114005/60 + 114006 + 114007 + 114006/60 + 114007/60 Rev. 16.01.2008
Gundlach A/S Tel. [phone] [email protected]
Silkeborgvej 765 · DK-8220 Brabrand Fax [phone] www.gundlach.eu

Manual for Primomic microscopes VE11400x
Item no. 114005 + 114005/60 + 114006 + 114007 + 114006/60 + 114007/60 Rev. 16.01.2008
front of the optical head, and use
this number to make a quick
adjustment next time the micros-
cope 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 adjustment is finished,
when the image seen with the
left eye is sharp.
- 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.
- Rotate the objective revolver so
that the preferred objective is
moved into the light path. The
objectives are parfocal. This
means that only a minor adjust-
ment in focus might be necessa-
ry, when changing magnification.
The 100x objective:
This is an oil immersion objective,
and it is used in the following way:
- Use one of the low magnification
objectives (4x and 10x) to focus
on the specimen.
- Put a drop of immersion oil on
the illuminated part of the speci-
men.
- Move the 100x objective into the
optical path so that the front lens
has contact with the immersion
oil.
- Air bubbles in the immersion oil
can be avoided, by moving the
objective slightly from side to
side. This will make sure that the
immersion oil covers the entire
lens surface.
- Focus for a sharp image.
- Remember to clean the objective
thoroughly after use. For this
purpose you must always use
specialized optical cleaning
agent and lens cleaning paper. A
drop of xylol (xylene) on lens cle-
aning paper can be used if the
lens surface is particular dirty.
Make sure to wipe off all the xylol
with new pieces of unused lens
paper.
The 60x objective:
If the microscope is not equipped
with a 100x objective, then it nor-
mally has a 60x objective instead.
This is a standard objective that
does not require immersion oil
when used.
Changing the bulb:
- Pull out the plug from the mains
and let the microscope cool
down for some minutes.
- Lay the microscope very gently
on one side.
- Loosen the big clamp screw on
the lamp housing and open it.
- Pull out the old bulb and replace
it with a new. It is a 2-pin halogen
bulb 6 V / 20 Watt (Osram HLX
64250).
- Please notice that the old bulb
can be very hot. Take care of
your fingers.
- It is important that the new bulb
is handled very carefully and is
not touched directly with the fin-
gers. Otherwise the glass surfa-
ce is damaged by the finger-
prints and the life of the bulb is
significantly reduced. Use a
clean cloth, plastic or a piece of
lens paper between the fingers
and the bulb when handling the
bulb.
- Close the lamp housing.
Maintenance:
- Put the microscope on a dry and
clean place.
- The objectives are manufactured
according to strict standards
and tested in the factory. Please
never try to disassemble them
yourself.
- The surface of the lenses must
never be touched with fingers or
hard things. If the glass surfaces
are dirty use a clean and previ-
ously unused piece of lens paper
to clean it.
- Remove dust from the glass sur-
face with a clean lens brush or
an air dust cleaner for optics.
- Use a always specialized optical
cleaning agent and wipe the
glass surface gently several
times. Each time with a fresh
piece of lens cleaning paper.
- Old residues of immersion oil
can most easily be removed by
adding a drop of solvent as for
instance xylol to the lens clea-
ning paper before wiping the
lens. Do not soak the surface
with solvent. Wipe instead sever-
al times with very little solvent,
each time using a new piece of
lens cleaning paper.
Caution:
Never turn the two focussing knobs
against each other. It will damage
them! Turn off the microscope
when it is not used, and cover it
with the enclosed dust cover. Let
the microscope cool down for
some minutes with the lamp swi-
tched off before moving it from one
place to another. This will minimize
the risk of bulb damage.
Gundlach A/S Tel. [phone] [email protected]
Silkeborgvej 765 · DK-8220 Brabrand Fax [phone] www.gundlach.eu
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