BestScope BS-2042 Series User manual

Biological Microscope

BS-2042 Series

Instruction Manual

This manual expatiates the using method, troubleshooting and maintenance about BS-2042

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.

BestScope International Limited

Contents BS-2042 Series

Before Use

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

2. Assembling..............................................................................................................6

2-1 Assembling Scheme...........................................................................................6

2-2 Assembling Steps ..............................................................................................7

3. Operation................................................................................................................9

3-1 Set Illumination .................................................................................................9

3-2 Place the Specimen Slide...................................................................................9

3-3 Adjust the Focus..............................................................................................10

3-4 Adjust the Focusing Tension ...........................................................................10

3-5 Adjust the Interpupillary Distance...................................................................10

3-6 Adjust the Field Diaphragm (Iris Diaphragm Koehler Illuminator Condenser

Optional)................................................................................................................12

3-7 Adjust the Aperture Diaphragm ......................................................................12

3-8 Use the Oil Objective (100X) ...........................................................................13

3-9 Use the Filter ...................................................................................................13

3-10 Replace the Fuse ...........................................................................................15

4. Technical Specifications ........................................................................................16

4-1 BS-2042 Series Biological Microscope Technical Parameters .........................16

4-2 Parameters of objective ..................................................................................16

5. Troubleshooting....................................................................................................17

BestScope International Limited

Before Use BS-2042 Series

1. Operation Notice

1. As the microscope is a high precision

instrument, always operate it with care, and

avoid physical shake during the operation.

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, use both hands

to hold its back hand-clasping ①and the front

base ②, and lay it down carefully (see Fig. 1).

★It will damage the microscope by holding

the stage, focusing knob or head when

moving.

4. When working, the surface of condenser will

be very hot. Make sure there is enough room for

the heat dissipating around the condenser ③

(see Fig. 2).

5. Connect the microscope to the ground to

avoid lightning strike.

6. For safety, make sure the power switch ④is

at “0”(off) and power it off before replacing the

bulb or fuse, and wait until the lamp cools down

(see Fig. 2).

★Bulb selected only: Single 3W LED light.

7. Wide voltage range is supported as 100~240V.

Additional transformer is not necessary. Make

sure the voltage is in this range.

8. Use the special wire supplied by our company.

Fig. 1

Fig. 2

BestScope International Limited

BS-2042 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.

Main switch ON

Main switch OFF

BestScope International Limited

- 4 -

1. Components BS-2042 Series

Tension

Adjustment

Ring

Arm

Coarse

Focusing

Knob

Fine Focusing

Knob

Light Adjustment

Knob

Built-in Koehler

Illuminator

Condenser

Binocular Head

Eyepiece

Objective

Stage

Koehler Illuminator

Condenser

Focus Arm

BestScope International Limited

- 5 -

BS-2042 Series

Objective

Nosepiece

Coarse

Focusing

Knob

Power Switch

Lock-screw

Y-axis

Adjustment

Knob

X-axis Adjustment

Knob

Fine

Focusing

Knob

Diaphragm

Adjustment Knob

BestScope International Limited

- 6 -

2. Assembling BS-2042 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 or dirt. Assemble carefully and do not

scrap any part or touch the glass surface.

Eyepiece

Objective

Condenser

Power Cord

BestScope International Limited

- 7 -

BS-2042 Series

2-2 Assembling Steps

2-2-1 Assemble the Condenser

1. Rotate the coarse focusing knob①to raise

the stage to the highest position (see Fig.

3).

2. Rotate the condenser up-down knob②to

lower the bracket of condenser to the

suitable position.

3. Fully loosen the condenser lock-screw③.

4. Insert the condenser into the hole of stand

according to the arrowhead, until the

condenser is equal with the stand, and

then rotate the condenser to make the

handle frontward.

5. Tighten the lock-screw ③of condenser,

then raise the condenser with the up-down

knob to the highest position.

2-2-2 Assemble the Objective

1. Rotate the coarse focusing knob to lower

the stage to a suitable position (see Fig. 4).

2. Install the objectives into the objective

nosepiece②from the lowest magnification

to the highest in a clockwise direction from

the rear.

★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

“ka-da”, to make sure the objective

wanted is in the center of optical path.

图3

图14

图13

图4

图5

Fig. 3

图4

Fig. 4

BestScope International Limited

- 8 -

BS-2042 Series

2-2-3 Assemble the Eyepiece

1. Take down the cover of eyepiece tube①.

2. Insert the eyepiece ②into the eyepiece

tube, until touch the surface (see Fig. 5).

2-2-4 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 power switch is at“0”(OFF)

before connecting.

2. Insert the connector①of power cord into

the power socket ②, and make sure it

connects

well (see Fig. 6).

3. Insert the other connector into the socket

power supply, and make sure it connects well.

★Use the special wire supplied by our

company. If it’s lost or damaged, choose

one with 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. 5

Fig. 6

BestScope International Limited

- 9 -

3. Operation BS-2042 Series

3-1 Set Illumination

1. Put through the power and turn on the main

power switch to“—”.

2. Adjust the light adjustment knob①until the

illumination is comfortable for observation.

Rotate the light adjustment knob clockwise to

raise the voltage and brightness. Rotate the light

adjustment knob counterclockwise to lower the

voltage and brightness (see Fig. 7).

Assemble the Mirror (Optional)

1. Turn off the power switch to “0”.

2. Loosen the hexagon screw①with the spanner,

to screw off the built-in Koehler illuminator

condenser②(see Fig. 8).

3. Screw on the mirror ③according to the

arrowhead pointed, and tighten the hexagon

screw①with the spanner.

4. Rotate the mirror stand④, to fill the field with

light.

3-2 Place the Specimen Slide

1. Push the wrench of the specimen holder

backwards.

2. Loosen the wrench①, and clamp the

slide②by the clips while the cover glass

faces up (see Fig. 9).

3. Rotate the X and Y-axis knob③. Move the

specimen to the center (alignment with the

center of the objective).

图9

Fig. 8

Fig. 7

图

Fig.9

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