BestScope BS-2020BD(300) User manual

Digital Biological Microscope

Model Number: BS-2020BD(300)

User Manual

This manual is written for digital biological microscope BS-2020BD(300). To ensure the safety, obtain

optimum performance and to familiarize you fully with the use of this microscope, it is recommended

strongly that you study this manual thoroughly before using the microscope and retain this manual in an

easily accessible place near the work desk for future reference.

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CONTENT

TUUser NoticeUT ...........................................................................................2

TU1. ComponentsUT ......................................................................................4

TU2.AssemblyUT ...........................................................................................5

TU2.1 Assembly DiagramUT ....................................................................5

TU2.2 Assembly StepsUT .........................................................................6

TU3.Adjustment & OperationUT .................................................................10

TU3.1 Adjustment SetsUT .......................................................................10

TU3.2 OperationUT ...................................................................................0

TU4. Specification TableUT .........................................................................14

TU4.1 Main specificationsUT .................................................................14

TU4.2 Eyepieces and ObjectivesUT ........................................................14

TU4.3 Total MagnificationUT .................................................................15

TU5．OutfitUT ............................................................................................15

TU6．Troubleshooting GuideUT .................................................................16

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User Notice

For the software manual, please see the attached CD in the carton.

Ⅰ. Safety Notes

1. Carefully open the box, avoid the accessories, like lens, dropping to ground and being damaged.

2. Do keep the instrument out of direct sunlight, high temperature or humidity, dustyand easy

shaking environment. Make sure the stage is smooth, horizontal and firm enough.

3. When moving the instrument, please use two hands to grip with the two sides of the microscope

body.

4. When running, the lamp house and nearby parts will be very hot. Please ensure there is enough

cooling room for them.

5. Make sure the instrument is earthed, to avoid lighting strike.

6. For safety, be sure the main switch is in “O”(off) state before replacing the halogen lamp or the

fuse, then cut off the power, and do the operation after the lamp bulb and the lamp house

completely cool down.( Specified: Halogen Lamp 6V/20W or LED 3W)

7. Check the input voltage: be sure the input voltage which signed in the back of the microscope is

consistent with the power supply voltage, or it will bring a serious damage to the instrument.

8. Use the factory supplied power cord, please.

II. Maintenance

1. All the lenses have been well checked and adjusted. It is forbidden to disassemble them yourself.

2. The nosepiece and coarse/fine focus unit have a compact and precise frame; please don’t

disassemble them as possibly as you can.

3. Keep the instrument clean, wipe dust regularly, and be attention to avoid contaminating the

optical elements especially.

4. The contaminations on the prism, as finger mark and oil, could be gently wiped with a piece of

soft cloth or tissue paper, gauze which has been immersed in pure alcohol or aether. (Note that

the alcohol and ether are highly flammable, do keep them away from the fire or potential

sources of electrical sparks, and use them in a drafty room as possible as you can.)

5. Do not attempt to use organic solvents to clean the microscope components other than the glass

components. To clean them, use a lint-free, soft cloth slightly moistened with a diluted neutral

detergent.

6. When using, if the microscope is splashed by liquid, cut off the power at once, and wipe up the

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moisture.

7. Do not disassemble any parts of the microscope, which will affect the function or decline the

performance of the microscope.

8. Place the instrument in a cool, dry position. When not using the microscope, keep it covered

with a dust cover. Make sure the lamp socket is cool before covering the microscope.

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1. ComponentsTT

BS-2020BD(300) Digital Biological Microscope

Eyepieces Digital viewing head

Nosepiece

Objectives

Main body

Condenser

Collector

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2.Assembly

2.1 Assembly Diagram

The following figure shows the installation sequence of the components. The number in the figure

shows the assembly steps.

Before installing, be sure every components is clean, do not score any parts or glass surface.

Keep well with hexagon wrench provided. When replacing the components, you will need it

again.

③

Main bod

Objectives

Digital viewing head

ieces

④

①

②

Power cord

USB data wire

⑤

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2.2 Assembly Steps

2.2.1 Installing digital viewing head

（Fig.1、2）

Insert the digital viewing head into the

microscope head, turn into the right position,

then screw down the bolt①to fix it.

2.2.2 Installing the eyepieces（Fig.3、

Fig.4）

Insert the eyepieces into the eyepiece tube

until they are against each other as shown in

Fig.4.

NOTE:

Operation Conditions：

1．Temperature：0℃～40 ℃,Maximum

Relative Humidity：85%.

2．High Temperature：High Temperature

and humidity will result in a mildewing,

dew and even ruinous instrument.

3．Avoid placing the instrument in a dusty

environment. When ending your

microscope operation, please cover it with

the dust cap.

4．Lay the microscope in a plan and stable

position, please.

Fig.1

Fig.3

①

Fig.2

Fig.4

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②

①

Fig.6

Fig.5

2.2.3 Installing objectives (Fig.5& 6）

1. Adjusting the coarse focus knob until the

support device of the mechanical stage

reaches its low limit position.

2. Screw the lowest magnification objective

into the nosepiece from the left or the right

side, then revolve the nosepiece clockwise

and mount other objectives by the sequence

of low to high magnification

Installing objective this way will make the

change of magnification to be easier during

using.

Clean the objectives regularly, for lens is

susceptible to dust.

When operating, use 10×magnification

objective to search and focus specimen

firstly, then replace with higher

magnification objective if necessary.

When replacing the objective, slowly turn

the nosepiece until you hear “clicked”,

which means the objective is in the

required position—center of the light

path.

2.2.4 Installing the color filters (Fig.7)

1. Turn the condenser bracket①out at the

direction of arrow in Fig.7

2．Put the required filters②into the holder on

the bracket, and then turn the bracket back

to the right position.

★Baby blue and green filters are available in

standard outfit.

Fig.7

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③ ②

⑥

④ ⑤

2.2.5 Connecting the power cord

(Fig.8, 9,10)

★The cable and cords are vulnerable

when bent or twisted, never subject the

power cord to excessive force.

1. Turn the main switch①to “O” (off) state

before connecting the power cord.

2. Insert the power plugs②into the power jack

③of the microscope; make sure the

connection is well.

3. Plug the power cord ④into the power supply

receptacle safely. Make sure the connection is

well.

★Do use the supplied power cord all the

time. If it lost or damaged, select the same

standard cord, please.

★ Either 110V or 220V can be selected as

the input voltage of this microscope. (The

input voltage has been preset in the

microscope before leaving factory.

2.2.6 Replacing the Fuse（Fig.8、9、10）

Do remember to set the main switch①to

the state of “O” (OFF) and unplug the power

cord ②before replacing the fuse. Scratch the

fuse holder⑤out from the power socket③

on the microscope, replace with a new fuse in

the holder, then press the fuse holder back

again.

★There is a spare fuse in the fuse holder.

★For 220V input voltage，use fuse of rating

(250V500mA).

★For 110V input voltage, use fuse of rating

(250V1A).

Fig.8

①

Fig.9

Fig.10

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②

①

④

⑥

⑤

2.2.7 Installing and replacing the

lamp（Fig.11,12,13）

There are two types of illuminator

available for this microscope, one type is

halogen lamp 6V20W, the other is 3W

LED. During use or just after using, the lamp

house and nearby parts will be very hot.

Please set the main switch to “O” (off) state

before replacing, and make sure the bulb, the

lamp room and periphery are all cool enough

to carry no burn. Then, you can do your

replacing.

1. Loose the bolt①and open the window②

on the bottom of the microscope base

with “一”type screwdriver.

2. Pull out the old bulb③,hold the new

bulb after you wrap it with gauze or

other protection materials and insert its

pin as deeply as possible into the jack in

the lamp holder.

4. Close the window and tighten the bolt①.

Please insert the bulb gently, or it

will be damaged by excessive

extrusion.

Do not touch the halogen bulb with

bare hands. It will shorten the service

life or cause it to burst. If you leave

fingerprints on the surface carelessly,

clean it with a piece of dry soft cloth.

When replacing LED ：

1. Generally, the LED has long service life

and is not easy to damage, if

unfortunately it damaged, purchase a

new one from the supplier.

2. Remove the base plate ⑥from the

bottom side of the microscope base with

screw driver ,loose the bolt⑤to take the

old LED off, replace with a new one .

3. Put the new LED unit back onto the

bracket with the bolt⑤and the base

plate ⑥onto the bottom side of the

microscope.

When you take down the base plate,

please do it gently and slowly, to avoid

damaging internal electrical wires.

Fig.11

③

Fig.13

Fig.12

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