OPTO-EDU MDJ A13.2602 Manual de usuario
.
A13.26 02
Student Biological
Instruction Manual
To ensure the safety and obtain satisfactory performance, please study this instruction manual thoroughly bef
ore start to use the instrument.
CONTENTS
1. Applications .......................................................................... 3
2. Specification ......................................................................... 3
3. Installation and Operation .................................................... 5
4. Maintenance ........................................................................ 7
5. Troubleshooting ................................................................... 9
2
Fig.1 MDJ200 Metallurgical Microscope
Fig.2 MDJ100 Metallurgical Microscope
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1. Applications
The MDJ series Metallurgical Microscope is widely used for
identifications and analysis of the structures of different metals and alloys
in factories,colleges and scientific department.
2. Specification
2.1. Total Magnification
Objective
Eyepiece
5X 10X 20X 50X 80X
5X 25X 50X 100X 250X 400X
10X 40X 100X 200X 500X 800X
12.5X 50X 125X 250X 600X 1000X
16X 64X 160X 320X 800X 1280X
2.2. Objectives
Obj.Mark Obj.Type Magnification
Numerical
Aperture
(N.A.)
Working
Distance
（mm）
System
Colour
Ring
LPL5X/0.13
∞/0 LPL 5× 0.13 16.07 Dry Red
LPL10X/0.25
∞/0 LPL 10× 0.25 18.48 Dry Yellow
LPL20/0.40
∞/0 LPL 20× 0.40 8.35 Dry Light
Green
LPL50/0.70
∞/0 LPL 50× 0.70 1.95 Dry Light
Blue
LPL80/0.80
∞/0 LPL 50× 0.80 0.85 Dry Dark
Blue
Remark: 50×、80× are with spring
4
2.3. Eyepieces
Eyepiece
Mark Eyepiece Type Magnification Field Dia.
（mm）
Focus
（mm）
WF10×-20 Plan Wide Field 10× φ20 25
WF10×-18 Reticle Eyepiece
（0.1mm） 10× φ18 25
WF16× Plan Eyepiece 16× φ13 15.6
WF12.5× Plan Eyepiece 12.5× φ14 20
5× Huygenian Eyepiece 5× φ20 50
2.4. Stage
Three layer mechanical stage size:180mm×180mm。
X-Y travel range：30mm×30mm；
Division ：0.1mm；
Stage plate size：φ110mm
2.5. Filter set:
Green, Blue, Grey and White grass can be supplied
2.6. Inllumination
12V/20W halogen bulb, adjustable brightness
2.7. Nosepiece
Quadruple nosepiece
2.8. Head
a. Monocular Head
b. Seidentopf Binocular Head
Inclined 45°, Interpupillary Adjustable Distance Is 48-75mm,
Diopter Adjustable Range ±5.
2.9. Coaxial Coarse & Fine Focusing System
Coaxial coarse & fine focusing knobs, coarse stroke 42.4mm/rotation,
actual coarse stroke 12mm;
Fine stroke 0.2/rotation, fine division 0.002mm.
2.10. Anti-fungal systems
Eyepiece and objective is anti-fungal.
2.11. Power Supply
Input：100V～240V，47-63Hz；Fuse：5A 250V（φ5×20）.
5
3. Installation and Operation
3.1. Installation
3.1.1 Put the body upright on the table steadily.
3.1.2 Put the head into body.
3.1.3 Put out the dust cover from eyepiece tube,and insert available eyepiece into
eyepiece tube.
3.1.4 Turn around the coarse focusing knob to araise the stage.Remove the dust covers
of nosepiece and put the objectives into the holes in nosepiece as per the power of
objectives.
3.1.5 Put the available stage plate into the hole of stage, and insert the clamps into the
small holes of top face of stage.
3.2. Operation
Check the outside power voltage and make sure it is available then put the socket
into pocket.
3.2.1 Turn around the potentiometer then adjust the light to an applicable position.
3.2.2 Select the suitable sample and place it on the stage plate,make sure the observed
face down,and fix the sample
with clips. Turn around the
stage knob to make the sample
into optical path.
3.2.3 Hold the rim of nosepiece
and turn around to put a low
power objective(usually 10×)
into optical path then observe
the specimen with left eyepiece
by left eye and turn coarse
focusing knob to find the image,
then turn slowly fine focusing
knob to make the image clear. Fig.3
After that,put high power objective into the optical path.
3.2.4. Pupil Distance Adjustment and Diopter Adjustment
3.2.4.1 Interpupillary Distance Adjustment (As shown in Fig.3)
Interpupillary distance is different for everyone, so it is necessary to adjust
interpupillary distance before using binocular microscope. Please take the two
eyepiece tubes and turn until the rings observed by two eyes are in superposition
entirely.
3.2.4.2 Diopter Adjustment (As shown in Fig.3)
As focusing for binocular, user should observe right eyepiece by right eye, and make
the image clear by focusing adjustment, then observe the left eyepiece. At the same
time, adjust the diopter ring of the left tube to make the image in left eyepiece clear as
6
same as the right eyepiece.
3.2.5 Field Iris Adjustment (As shown in Fig.1 and Fig.4)
Turn the field iris ring to make
the image of field iris smaller
than the eyepiece field, and you
can see the image of the field iris.
Make the field iris center nearly
overlap the eyepiece view center
by adjusting the iris center screw.
Make the image of field iris
smaller than eyepiece field and
adjust again, make the field iris
more overlaps the eyepiece field.
Make the field iris bigger until the Fig.4
image of field iris disappears out of the eyepiece field .
3.2.6 Aperture Iris Adjustment (As shown in Fig.1 and Fig.5)
Turn aperture iris ring and change the size
of aperture iris to change the contrast of
the sample.
Put out the eyepiece and observe through
tube, and adjust the aperture iris to make
the aperture iris image fills 70%-80%of
the objective aperture.
After the above points, please choose
available objective, eyepiece and filter as
per the sample, and adjust aperture iris, Fig.5
bright, focusing knobs to get the clear image.
3.2.7 Usage of the tension adjustment ring (Shown in Fig.6)
The tension adjustment ring can adjust the tension of the coarse and fine focusing unit
to prevent the stage from sliding down automatically and to improve the comfort of
operation. Rotation clockwise makes tension decrease, and by contraries, rotation
counterclockwise makes tension increase.
▲Don’t turn lest and right coarse and fine focusing knobs with different
direction with power at the same time, if so, the focusing system will be damaged.
▲Don’t directly pull objective to turn nosepiece when user changes the different
objectives, if so, optical quality of microscope possibly be affected. The right way
is to take the tooth-like part of the nosepiece to turn it, and make the objective
into correct position and into the bright path.
7
3.2.8 Usage of Digital Camera
3.2.8.1 Get the clear
image, then put out
the eyepiece.
3.2.8.2 Connect the
camera adaptor with
camera, then insert
the adaptor into the
tube, and fix it with
screw.
3.2.9 Usage of
immersion oil
objective
If you must to use oil
objective, it is
necessary that adding
moderate immersion oil Fig.6
between the front lens of
the oil objective and the sample. Please pay attention that air bubble and impurity
can’t be in the immersion oil, otherwise, the image would be affected.
▲After immersion oil used, the oil of specimen and the microscope
surface should be soon cleaned by absorbent cotton, lens paper, gauze
or soft cotton cloth with moderate mixture of pure industrial alcohol and
ether (proportion 1:4) .
4.Maintenance
4.1 Clean microscope
4.1.1 Don’t touch the lens with hand, Dust on lens should be cleaned by soft brush or
absorbent cotton or cleaned by absorbent cotton, lens paper with the mixture of
alcohol and ether (proportion 1:4).
4.1.2 Alcohol and ether all are burnt early, please take them away from fire. Be careful
for turn on and off power.
4.1.3 Don’t clean painted metal and galvanizing metal with organic solvent such as
alcohol, ether or the mixture of the both. Silicon cloth or soft cleaning preparation is
suggested to clean it.
4.1.4 Plastic should be cleaned by soft cloth with clear water.
4.2 Environment of using and placing
4.2.1 Microscope should be used and placed in a cool, dry, non-dust, non-shake and
non-corrosive gases environment.
4.2.2 Microscope should be used in environment of indoor temperature 0°-40°C
and maximum relative humidity 85%.
4.2.3 Removing equipment is suggested to be installed when microscope used in
heavy humidity area to avoid fungus and mist damage instrument.
4.2.4 Please pay attention to prevent microscope from violent shake and vibration in
application and in carrying. Don’t drag it on the surface of worktable to avoid damage
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to microscope and worktable.
4.3 Replacement of bulb
4.3.1 Turn off power, and pull out plug.
4.3.2 Wait the bulb become cool.
▲ Please be sure that the bulb is cool, then follow by the nest operations.
4.3.3 Lay aside the microscope reliably, unscrew the knurled thumb screw of the lamp
housing cover on the underside of base.
4.3.4 Pull over the lamp housing cover.
4.3.5 Pull out the bulb should be replaced, hold a new bulb with silk cloth to avoid
fingerprint and dust affect bulb brightness and service life, and insert fully the contact
pins into the bulb socket.
4.3.6 Close the lamp housing cover, and screw the knurled thumb screw.
▲After working for above 10 hours continuously, better cut off the microscope
about 30 minutes.
4.4 Replacement of fuse
4.4.1 Cut off power of microscope, and pull out the plug.
4.4.2 Unscrew fuse cap in the back of base, take out old fuse.
4.4.3 Replace a new fuse, then screw the fuse cap.
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5. Troubleshooting
In the period of using MDJ microscope, if there is any trouble occurs,
please referring to the following sheet listed some common
troubleshooting resolve them.
Trouble Causation Remedy
Switch on but
bulb dark
Plug is unreliable Plug in again
Bulb is bad Change bulb
Fuse is broken Change fuse
Bulb is flickering
or brightness
is unsteady
Bulb is unstable Insert it again
Bulb is broken Replacing bulb
Brightness of view
field is not
enough or is uneven
Bulb specification doesn’t
meet
the requirement
Replacing bulb
Brightness isn’t adjusted
correctly
Adjust Rotation
potentiometer
Objective isn’t in correct
position
Make the objective in
correct position
The size of iris aperture is
too small
Adjust the size of
iris aperture
Lens (objective, eyepiece,
Condenser, light collector)
has dust
Clean it
Image isn’t clear
(contras or definition
isn’t enough)
Size of iris aperture
isn’t proper
Adjust the size of
iris aperture
Image observed by
two eyes aren’t in
superposition
entirely.
Interpupilary distance isn’t
adjusted correctly
Adjust
interpupilary
distance according
to two eyes
It is easy for eyes to
be tired during
observing
Diopter isn’t adjusted
correctly
Readjust diopter
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