FYBIKON BS Series Technical manual

FYBIKON ART. Nr: 10103, 10104
BS
Series Biological Microscope
Operation Instruction
To ensure the safety and obtain satisfactory performance and to familiarize
yourself with the use of this microscope, please study this instruction manual
thoroughly before your operations.

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Contents
1Purpose and components························································2
2Specifications·····································································3
3Installation ········································································5
4Operations·········································································6
5Maintenance ······································································8
6Trouble shootings ································································9

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1 Purpose and components
BS series of biological microscope have some great feature that includes built-in
carrying handle that makes operations easy and convenient. The microscopes have
LED illumination that provides white light with virtually no heat. With built-in
mechanical stage and plan achromatic objectives this is a perfect solution for
educational purposes in schools that appreciate quality.
Components:
Fig.1 Shape of BS Microscope with Fig.2 Shape of BS Microscope with
Monocular Head, art. 10104 Binocular Head, art. 10103

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2 Specifications
2.1 Total magnifications
Objectives
Eyepieces
4X
10X
40X
100X
10X
40X
100X
400X
1000X
2.2 Objectives
Code
Magnifications
Type
Numerical
Aperture
（N．A．）
Working
Distance
（mm）
B-OSP4a
4X
Plan achromatic objective
0.1
35.8
B-OSP10b
10X
0.25
2.49
B-OSP40f
40X
0.65
0.65
B-OSPo100b
100X
Plan achromatic objective
（oil）
1.25
0.52
2.3 Eyepieces
Code
Magnifications
Type
Field Diameter
(mm)
Focal Length
(mm)
Remark
EP10g
10X
Plan eyepiece
φ18
25
2.4 Coarse and fine focusing knob
The larger focus control knob is located on either side of the microscope which
facilitates rapid and heavy movement of the focusing mechanism. The fine
focusing knobs, are used for precise focusing adjustments once the specimen has
been brought into view with the coarse focus controls. Focusing knobs can make
a coarse stroke 20 mm and the fine movement 0.18 mm each circle rotation with
a division 0.002 mm.

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2.5 Mechanical stage
This mechanical stage size is 135×130 mm with 2 scales (division 1 mm) and 2
vernier (division 0.1 mm) offers measure by 75 mm in X direction and 50 mm in
Y direction.
2.6 Condenser
The condenser is mounted in the stage and it is used in conjunction with the iris
diaphragm. The function of the condenser is to provide full illumination to the
specimen plane and to enhance the resolution and contrast of the object being
viewed. The condenser can be raised and lowered for precise light control. This
condenser’s numerical aperture (N.A.) is 1.25, and its lever lifter mechanism can
supply an up-down range by 30 mm.
2.7 Interpupillary adjustable range
Increasing or decreasing the distance between the eyepieces is achieved by
twisting the eyepiece tubes in an up and down arc motion similar to binoculars.
The distance is between 53～75mm.
2.8 Diopter Located on the left eyepiece of the binocular head and is designed to
help compensate the difference between the user’s eyes. Diopter adjustable range
is ±5 diopter.
2.8 Electrical components
The built-in light source which provides the optical system with light is an energy
efficient 3W rechargeable LED.

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3 Installation
3.1 When unpacking and handling, please do not touch the optical surfaces. Place
the biological microscope frame on a flat workbench and remove any foam
padding or spacer used to prevent vibration during transportation.
3.2 Then take out the binocular or monocular head (Fig.2 shows a binocular head,
and Fig.1 is a monocular one), insert it into the hole of the head mount at the top
of frame, then fix it with a knurled screw tightly, as Fig.3 illustrate. The head can
rotate round 360 degrees freely after being installed.
Fig.3 Installation of head
3.3 Screw objectives into the nosepiece’s holes orderly according to the
magnification-power of them.
3.4 Insert eyepiece into eyepiece tubes separately, then
fix eyepieces by set screws. (Fig.5)
3.5 Make sure that the voltage in you power grid meets instrument’s requirement
and plug the power cord into the power outlet. If used cordless, first time fully
charge for 8 hours. After the first time, 2 hours charge each time is ok.
Fig.5

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4 Operations
4.1 Turing the microscope on/off.
On the side of base you will find the modulation disc by the printed “ON”/”OFF”
sign. Turning this disc will regulate the light intensity and turn the microscope
“ON”. Rotate the brightness control to the desired illumination. (After use, turn
the brightness control to the OFF position, to save rechargeable batteries).
4.2 Interpupillary distance adjustment (only for binocular models)
While looking through the microscope, grasp the eyetubes and move them on their
hinges until the two circular fields in the observation field coincide with each
other. This should be adjusted for every new user.
4.3 Using the microscope
1. Use the slide holder mechanism to secure the slide in place. Be sure the
specimen is centered over the opening in the stage.
2. Rotate the nosepiece to place the lowest power objective (4X) over the
specimen.
3. Open the iris diaphragm to its largest aperture.
4. While viewing through the eyepiece(s), rotate the coarse focus knob slowly
and carefully to bring the specimen into focus. The specimen may require
some centering in the field of view at this time. By using the fine focusing
knob, slowly and carefully refine the focus to clearly observe the fine
details of the specimen.
5. If the image of the specimen appears pale, the aperture of the iris diaphragm
should be slowly closed until the details of the specimen are sharply defined.
If the specimen appears dark, slightly open the diaphragm.

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6. Set the diopter adjustment which is designed to help compensate for the
difference between the user’s eyes. To adjust, first bring the specimen into
perfect focus by using the coaxial focusing knobs while looking through
the eyepiece with the right eye only (close your left eye). Now, using your
left eye only (close the right eye) turn the left eye diopter only (don’t touch
the focus controls) to obtain a crisply focused image. The diopter
adjustment is now set and no further adjustment will be needed until a new
operator uses the scope.
7. Rotate the nosepiece to the next higher power objective. A slight turn of the
fine focusing knob may be required to bring the image of the specimen into
sharp focus.
4.4 Adjustment of the condenser
The center of condenser is accurately adjusted at factory. No further adjustments
should be necessary. While exchanging objectives, adjust the lever lifter of
condenser to make it suit for the numerical aperture of objective selected to be
used, thereby gaining a bright and well-distributed luminance in the view field.

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5 Maintenance
5.1 The instrument should be used in a cool, dry, and clean place. Dusty/dirty
environment, violent shaking and corrosive gases must be avoided.
5.2 Please do not disassemble the instrument without reason since it is thoroughly
calibrated before leaving the factory. Please pay attention to prevent instrument
from being exposed to violent shaking and vibrations. Do not drag it on the surface
of worktable so as to avoid damage to the instrument and the worktable.
5.3 Do not touch the surface of outer lens. Dust on the surface can be cleaned by
a soft brush or a piece of absorbent lens paper with alcohol.
5.4 Replacement of the LED
5.5.1 Turn the microscope “OFF” and pull out the plug from the wall outlet.
5.5.2 Make sure the LED assembly is cool before touching it.
5.5.3 Lay aside the instrument reliably, unscrew the bottom assembly to get access
to the LED assembly. Switch assembly and mount bottom assembly.
5.5 Replacement of fuse
5.6.1 Turn the microscope “OFF” and pull out the plug from the wall outlet.
5.6.2 Lay aside the instrument reliably, unscrew down the cap of the fuse socket
on the underside of the base to pull out the old fuse and replace a new one, then
screw the cap onto the fuse socket again.
5.6 Please cut off the power supply and protect the instrument with dust cover
after usage.

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6 Trouble shooting
Trouble
Causation
Remedy
Power on, no light
（1）Power plug is not connected
（2）LED is broken
（3）Fuse is broken
（1）Plug it again more firmly
（2）Change LED
（3）Change fuse
LED is flickering or
brightness is unsteady
LED is unstable
Check LED connection or change LED
Brightness of view field is
uneven
（1）Dust on optical components
（2）Nosepiece is not at the fixed
position
（3）Condenser isn’t at the
suitable position
（4）Reflector isn’t at the suitable
position
（1）Clean it
（2）Rotate to the fixed position
according to No.4.3
（3）Adjust it according to No.4.10 once
more
（4）Adjust it according to No.4.11 once
more
Image is out of focus
gradually
The tension of the coarse and fine
focusing unit is not suitable
Adjust the tension adjustment ring
according to No.4.8
Easy fatigue in observation
The compensation ring of tube
length is not at the comfortable
position
Adjust it according to No.4.5 and 4.7 once
more
Image cannot be observed
by two eyes at the same
time
The interpupillary distance is out
of place
Adjust according to No.4.5 once more
Ved behov kontakt oss i Fybikon for.
Tlf. + 47 38 01 21 66
E-post: [email protected]
Web: www.fybikon.no