BestScope BS-2026 Series User manual

Version No.: V1.0
BS-2026 Series Biological
Microscope
Instruction Manual
BS-2026M BS-2026B BS-2026BD1
This instruction manual is for the operation guide, troubleshooting and
maintenance to the BS-2026 series biological microscope. Please study this manual
thoroughly before operating, and keep it with the instrument. The manufacturer
reserves the rights to the modifications by technology development. On the basis
of operation ensured, technical specifications may be subject to changes without
notice.

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Contents BS-2026 Series
Before Use
1. C o m p o n e n t s ………………………………………………………………………..……...1
2. A s s e m b l i n g …. . . …….……………………………………………………………………...4
2- 1 A s s e m b l i n g S c h e m e …………………………………. . . . …………………………….4
2-2 As semb lin g Ste ps …… …………… …… … ..………………..….…………………5
3 . O p e r a t i o n s …………………………………………………………………………….……. 7
3-1S e t I l l u m i n a t i o n … … … … .………….………………………………………..7
3-2 Place t he Specimen Slide ..……….…………….…………………………...7
3-3 A d j u st t h e F o c us …………………………………...…….…………..…..... 7
3-4 Adjust the Focusing Tension …......……………………………………….….7
3-5 Aperture Diaphragm …………………………………………………………………………………………………8
3-6 Use the Oil Objective (100X)……………………………………………………………………………….….8
3-7 Use binocular head /trinocular head （ Optional ） ……………………..........9
3-8 Use mechanical platforms （ Optional ） …………………………………………………………………..9
3-9 S t o r e t h e P o w e r C o r d …………………………………………………………………..10
4. T r o u b l e s h o o t i n g …………………………………………………………………….……...11

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Before Use BS-2026 Series
1. Operation Notice
1. As the microscope is a high precision
instrument, always operate it with care, and avoid
physical vibrations.
2. Do not expose the microscope in the sun
directly, either not in the high temperature, damp,
dust or acute shake. Make sure the worktable is
flat and horizontal.
3. When moving the microscope, keep holding the
rear cover hand clasp①and the front end of
microscope body②with each hand. Handle with
care. (See Fig. 1)
★It will damage the microscope by holding the
stage, focusing knob or head when moving.
4. Connect the microscope to the ground to avoid
lightning strike.
5. For safety, make sure the power knob① is
rotated counterclockwise to the minimum before
replacing the bulb, and wait until the bulb and
base cool down completely (see Fig. 2).
★Bulb selected only: single 5050 LED
6. Wide voltage range is supported as 100~240V.
Additional transformer is not necessary. Make
sure the power supply voltage is in this range.
7. Use the special wire supplied by our company.
Fig.1
Fig.2

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BS-2026 Series
2. Maintenance
1. Wipe the lens gently with a soft tissue. Carefully wipe off the oil marks and fingerprints
on the lens surfaces with a tissue moistened with a small amount of 3:7 mixture of alcohol and
ether or dimethylbenzene.
★As the alcohol and ether is flammable, don’t place these chemical near to fire or fire
source. For example, when turning on or turning off the electrical device, please use these
chemical in a ventilated place.
2. Don’t use organic solution to wipe the surfaces of the other components. Please use the
neutral detergent if necessary.
3. If the microscope is damped by liquid when using, please power it off immediately and
wipe it dry.
4. Never disassemble the microscope, otherwise the performance will be affected or the
instrument will be damaged.
5. After using, cover the microscope with a dust cover.
3. Safety Sign
Sign
Signification
Study the instructions before use. Unsuitable operation would lead to
person hurt or instrument faulty.

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1. Components BS-2026 Series
BS-2026M
Eyepiece
Fine Focusing
Knob
Coarse
Focusing Knob
Body Group
Objective
Stage
Condenser
Lock Screw
Indicator Light
Light Adjustment Knob
Nosepiece
Monocular Head

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BS-2026 Series
BS-2026B
Objective
Stage
Illuminator
Fine Focusing Knob
Coarse Focusing Knob
Tension
Adjustment
Ring
Body
Group
Binocular Head
Eyepiece

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BS-2026 Series
BS-2026T
Eyepiece
Trinocular Head
Fine Focusing
Knob
Coarse Focusing
Knob
Body Group
Objective
Stage
Condenser
Lock Screw
Indicator
Light
Light Adjustment Knob
Nosepiece
Vertical
Adjustment
Knob
Horizontal
Adjustment
Knob

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2. Assembling BS-2026 Series
2-1 Assembling Scheme
Following is the Assembling Scheme, and the numbers denote the assembling order.
★Before assembling, make sure there is no dust, dirt or other materials which will disturb it.
Assemble carefully and do not scrap any part or touch the glass surface.
Eyepiece
Objective
Power Cord

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BS-2026 Series
2-2 Assembling Steps
2-2-1 Assemble the Objective
1. Rotate the coarse focusing knob①to lower the
stage to a suitable position (see Fig.3).
2.Then install the objectives into the nosepiece②
from the lowest magnification to the highest in
clockwisedirection.
★When operating, first use the low magnification
objective (4X or 10X) to search for specimen and
focus, and then replace with high magnification
objective to observe.
★When replacing the objective, rotate the
objective nosepiece until it sounds “click”, to
make sure the objective wanted is in the center of
optical path.
2-2-2 Assemble the Eyepiece
1. Take down the cover of eyepiece tube①.
2. Insert the eyepiece② into the eyepiece tube,
until it touches the surface.
3. Tighten eyepiece with M2.5 inner hexagon
lock-screw③(see Fig.4).
2-2-3 Connect the Power Cord
★Don’t use strong force when the power cord is
bended or twisted, otherwise it will be damaged.
1. Make sure the light adjustment knob is at
“O”(OFF) before connecting the power cord.
2. Insert the connector①of into the power
socket②, and make sure it connects well (Fig.5).
3. Insert the other connector into the socket of
power supply, and make sure it connects well.
4.There are rechargeable batteries at the bottom of
the microscope. Open the battery box to replace
the battery (see Fig.6).
Fig.3
Fig.4
Fig.5
Fig.5

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BS-2026 Series
★Use the special wire supplied by our company.
If it’s lost or damaged, choose one in the same
specifications.
★Wide voltage range is supported as 100~240V.
★Connect the power cord appropriately to make
sure the instrument is connected to ground.
Fig.6