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Zoom stereomicroscope,
model Stereozoom IT B/TR

Item no. 11.09.10 and 11.09.11

If the black/white stage plate is
mounted, then please replace it
with the glass stage plate. The
frosted side of the glass stage
plate should face down. 

The optical head is placed on
the stand, if this is not already
done. Remove the cover from
the underside of the objective
tube (not always mounted).

Insert the two eyepieces in the
tubes.

Put the mains cord in a socket
and turn on the stereo micro 

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scope. The model has two illu-
mination sources; top light (inci-
dent light) or bottom light (trans-
mitted light). The illumination
can be adjusted on the left side
of the stand.

The angle of the top light can be
adjusted by gently pushing the
black lamp housing, but watch
out as it gets very hot.

General use of the stereo
microscope:

Place an object under the obje-
ctive revolving tube, and use the
large focusing knobs to adjust
the sharpness. 

The magnification can be chan-
ged between 7x and 45x by
turning the horizontal zoom
knob (marked with 0.7 to 4.5).
This knob is found on the opti-
cal head.

It is possible to turn the optical
head 360 degrees. This is done
by loosening the large lock
screw on the left side of the
optical head.

Place the black/white stage
plate on top of the glass stage
plate, if you want to see an
 object on a black or white
background. Incident light is
used for this purpose.

The glass stage plate should not
be removed. Using the black/ 

-

white plate on top of the glass
plate prevents the plastic plate
from damage if the transmitted
light is not turned off.

Interpupillary distance is adjus-
ted on the stereo microscope by
moving the eyepiece tubes/ 

-

prism housings. Look into the
eyepieces and move the prism
housings (light colour) closer
together or further apart. The
interpupillary distance is adjus-
ted when a single circular field is
observed when viewing with
both eyes.

Dioptre adjustment:

Put the dioptre rings on the eye-
pieces in neutral position.

Choose the highest magnificati-
on and adjust the focussing
knobs to the best possible view.

Choose the lowest magnifica 

-

tion and do not use the focus-
sing knobs.

Now adjust the sharpness for
each eye by turning the dioptre
ring for each eyepiece.

This concludes the dioptre
adjust ment. The sharpness
 should now be maintained for
the magnification range. It is,
however, possible that a minor
correction of the focus is neces-
sary for people with certain
astigmatisms.

Bulbs:

The incident and transmitted light
uses different bulbs. The bulb must
have the correct Voltage and
Wattage; otherwise the stereo 

-

microscope’s electronic might be
damaged.

Top light is equipped with a halo-
gen bulb with reflector 6V/12W.
Some versions are however equip-
ped with a 6V/15W bulb.

Bottom light is equipped with a
6V/15W halogen bulb

Zoom stereomicroscope, model Stereozoom IT B/TR

VE110910_11

Itemno. 110910_11

Rev. 06.12.2007

Gundlach A/S

Tel. +45 8694 1388

gundlach@gundlach.eu

Silkeborgvej 765 · DK-8220 Brabrand

Fax +45 8694 2486

www.gundlach.eu

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