BestScope BS-3020 User manual

BS-3020 Stereo Microscope

User Manual

It is recommended strongly that you study this manual thoroughly before using the

microscope. Retain this manual in an easily accessible place near the work desk for

future reference.

Bestscope International Limited

CONTENT

USER NOTICE................................................................................. 2

1. Components............................................................................ 4

2. Assembly.................................................................................. 5

2.1 Assembly Diagram......................................................................... 5

2.2 Detailed Assembly Procedure.....................................................6

3. Adjustment and Operation...................................................8

3.1 Adjusting Binocular Viewing Head............................................8

3.2 Focus Adjustment.......................................................................... 9

4. Specification..........................................................................10

5. Troubleshooting................................................................... 10

6. Outfit........................................................................................ 11

Bestscope International Limited

USER NOTICE

1. Safety Precaution

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

damaged.

2. Check the input voltage, be sure the input voltage which signed on the microscope is consistent

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

3. Do keep the instrument out of direct sunlight, high temperature or humidity, dusty and easy

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

4. To prevent the microscope body from turning over, its pivot angle must be limited to 30°.

5. .A microscope is a precision instrument. Handle it with care and avoid subjecting it to sudden or

severe impact.

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

7. Do not disassemble any part of the microscope, especially the electrical parts on the bottom side

as this may result in electric shock.

8. Use the factory supplied power cord, please.

2. Maintenance and Storage

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

yourself.

2. The binocular viewing head and focusing 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 fingerprint and oil, could be gently wipedwithapieceof

soft cloth or tissue paper, gauze which has been immersed in pure alcohol or ether. (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 youcan.)

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. If the microscope is splashed by liquid during using, cut off the power at once, and wipe up the

moisture.

7. Do not disassemble any parts of the microscope, which will affect the functionordeclinethe

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.

Bestscope International Limited

Binocular head and zoom body

1. Components

Stereo Microscope BS-3020B

WF10×eyepieces

Diopter ring

Clamping knob

Standard base

Glass stage

stand

Focusing knob

Power Cord

Switch and light adjusting knob

Bestscope International Limited

2. Assembly

2.1 Assembly Diagram

The diagram below shows how to assemble the various modules. The numbers indicate the order of

assembly.

★When assembling the microscope, make sure that all parts are free of dust and dirt, and avoid

scratching any parts or touching glass surfaces.

Microscope main body

③

Binocular head and zoom body

WF10×eyepieces

①

Power

④

②

Power cord

Bestscope International Limited

2.2 Detailed Assembly Procedure

Fig. 3

2.2.1 Mounting binocular head (Fig.1)

Loose the clamping bolt③on the pillar④and insert

the binocular head and zoom body assembly②into the

bracket of the pillar, then screw down the bolt③.

2.2.2 Mounting eyepieces (Fig.1, Fig.2, Fig.3)

Remove the eyepiece dust caps①and gently

insert two adjustable eyepieces ⑤into the eyepiece

sleeves until they stops, as in Fig.3.

Fig. 2

⑤

Fig. 1

④

③

①

②

Note:

Working Environment Requirement:

1．Ambient temperature: 5 °Cto40°C(41°Fto

104°F), Maximum R.H: 85%.

2．High Temperature 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 cover.

4．Lay the microscope in a plan and stable position,

please.

Bestscope International Limited

2.2.3 Connecting the power cord (Fig.4)

1. Clockwise rotate the left and right brightness

adjusting switches①until the end on (off) state

before connecting the power cord②.

2. Insert the power plug②into the power jack of the

microscope; make sure the connection is well.

3. Plug the power cord③into the power supply

receptacle safely. Make sure the connection is

well.

●Adjustable illumination for both LEDs (top and

bottom).

●Input Rating: 100V～240V.

Trinocular head is optional if video or photography

function is needed.

2.2.4 Video(Photography) accessories assembly

1. Installing the video set: Remove the dust cap of

the trinocular viewing tube, revolve the camera

set ⑤into the screw thread end---the video

adapter④with C mount, and insert the other end

into the tri-through port and screw down the

bolt⑥.

2. Installing the photography set: Remove the dust

cap of the trinocular viewing tube, install the

photography accessories⑦into the tri-through

port, and screw down the locking bolts⑥, change

the camera⑨gun with digital photography

adapter⑧, and insert the adapter into the

accessories, as in Fig 6.

①

③

②

⑥

⑦

⑨

⑧

⑤

⑥

④

Fig. 4

Fig. 5

Fig. 6

Bestscope International Limited

3. Adjustment and Operation

3.1 Adjusting Binocular Viewing Head

3.1.1 Adjusting interpupillary distance (Fig.7)

Different users have different interpupillary

distances. So when users change, do the interpupillary

distance adjustment.

While looking through the eyepieces, hold the left

and right of the binocular assembly①and adjust the

eyepieces by opening or closing them for binocular

vision until the left and right fields of view coincide

completely.

3.1.2 Adjusting diopter ring (Fig.8)

1．Set the dioptor rings of both eyepieces to

“0”position. (Do this when users change, because

different users have different diopters.)

2．Place an easy-to-observe specimen on the stage

plate.

3．Rotate the zoom body knob③to the highest

magnification 4.5×, and turn the focusing knob④to

focus the specimen.

4．Rotate the zoom body knob③to the lowest

magnification 0.7×, looking only into the left

eyepiece, adjust the diopter ring on left eyepiece to

focus the specimen. Then do the same thing for the

right one.

5．Repeat item 3 and 4 until the specimen image can

always focus without any adverse effect of the

changes of magnification on the definition of the

image.

●The working distance of the microscope is

97mm, the binocular head bracket⑤could be

mounted onto the higher or lower position

according to your needing. Remove the clamping

bolt with provided hexagonal driver and move the

bracket ⑤down to the lower position and set it with

original bolt (Fig.8).

①

②

⑤

④

③

Fig. 7

Fig. 8

Bestscope International Limited

3. 2 Focus Adjustment

3.2.1 Adjusting the rotation tension of the

focus adjustment knob (Fig.9, Fig.10)

1．Rotate the focus adjustment knob①to move the

slider②to a lower place for fear that the zoom

body drops down suddenly if the tension is

decreased too much.

2．Hold the focus adjustment knobs①with both

hands, stop the left knob and rotate the right knob

to increase or decrease the focus knob tension.

3. Rotate two sides of the adjustment knobs in the

same direction (otherwise it will get loose) to

move the zoom body up and down to focus on the

specimen.

3.2.2 Changing the magnification

1. The zooming knots located at two sides of the

zooming body could change the magnification of the

specimen image.

2. Total Magnification = Magnification of zoom

body×magnification of eyepiece

Note: While using the auxiliary objective, it

should be multiplied by its magnification in

addition .

3.3 Illumination

1. Adjustable illumination for both LEDs (top and

bottom).

2. Brightness adjustment: the right brightness

adjustment knob③is used to adjust the bottom

illumination, and the left brightness adjustment

knob④is used to adjust the top illumination. Each

knob have its own on-off. Rotate anticlockwise to

open the power, and continue would increase

the brightness, keeping rotating clockwise would

decrease the brightness until it is power off.

③

P10

④

②

①

Fig. 9

Fig. 10

Bestscope International Limited

4. Specification

4.1 Zoom ratio:1:4.5

4.2 Objective magnification: 1×～4.5×

4.3 Binocular viewing head: Inclined at 45, interpupillary distance range: 55～75mm

4.4 Working distance: 97mm

4.5 Illumination system: Adjustable illumination for both LEDs (top and bottom)

5. Troubleshooting

Under certain conditions, performance of this unit may be adversely affected by factors other than

defects. If a problem occurs, please review the following list and take remedial action as needed. If you

cannot solve the problem after checking the entire list, please contact your local franchiser for assistance.

PROBLEM CAUSE SOLUTION PAGE

1．Incomplete binocular

vision.

Interpupillary distance is not

correctly adjusted.

Adjust it correctly

Diopter adjustment is

incomplete.

Complete diopter adjustment

2．Dirt is visible in field of

view

Dirt on specimen Clean specimen

Dirt on eyepiece Clean eyepiece

3．The visibility of the

image is poor. Dust on objective front lens. Clean lens surface

4. Specimen image blurs

when zoom magnification

changed.

Diopter ring is not correctly

adjusted. Adjust it correctly.

Not in complete focus on

specimen.

Focus specimen correctly at a

high magnification.

Auxiliary

objective

Working

distance

(mm)

Eyepiece

10×

Field of view 20

15×

Field of view 16

20×

Field of view 12

Magnification Actual field Magnification Actual field Magnification Actual field

No 97 10-45× Φ20-Φ4.4 15-67.5× Φ16-Φ3.56 20-90× Φ12-Φ2.67

0.75× 120 7.5-33.75× Φ26.7-Φ5.9 11.25-50.625× Φ21.3-Φ4.74 15-67.5× Φ16-Φ3.56

2× 30 20-90× Φ10-Φ2.2 30-135× Φ8-Φ1.78 40-180× Φ6-Φ1.33

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