BestScope BS-2073 Series Manuel utilisateur

Biological Microscope

BS-2073, BS-2074 Series

Instruction Manual

BS-2073B BS-2074B

This manual is for the biological microscope Model BS-2073, BS-2074. To ensure the safety,

obtain optimum performance and to familiarize yourself fully with the use of this microscope, it is

recommended strongly that you study this manual thoroughly before operating the microscope.

BestScope International Limited

CONTENTS BS-2073,BS-2074

User Notices ............................................................................................2

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

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

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

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

3. Adjustment And Operation ..................................................................9

3.1Adjustment Set Diagram ......................................................................................................9

3.2Operation...........................................................................................................................13

4. Video Attachment..............................................................................18

4.1Installing Trinocular Viewing Head And Video Attachment ...............................................18

4.2Focusing the Specimen ......................................................................................................18

5. Digital Viewing Head..........................................................................19

5.1Digital Viewing Head..........................................................................................................19

5.2 Installing............................................................................................................................19

6. Fluorescent Observation ....................................................................20

6.1Fluorescent Set...................................................................................................................20

6.2Installing.............................................................................................................................20

6.3Method of Application.......................................................................................................20

7. Phase Contrast Observation...............................................................21

7.1Components Name ............................................................................................................21

7.2Installation And Use ...........................................................................................................21

8. Dark Field Observation.......................................................................23

8.1Bright and Dark Filed Components ....................................................................................23

8.2Installation And Use ...........................................................................................................23

9. Simple Polarization Set.......................................................................24

9.1Components Name ............................................................................................................24

9.2Installation And Use ...........................................................................................................24

10. Technical Specifications....................................................................25

11. Trouble Shooting..............................................................................26

BestScope International Limited

Use Notices BS-2073,BS-2074

Ⅰ. Configuration Instruction

1. BS-2073 is the basic model and uses NIS45 system;

2. BS-2074 is coding model, using NIS60 system, with brightness memory, wire resistance stage and other

configurations.

Ⅱ. Principle and Application

Principle: Using the appropriate adjustment combination of two lens sets, the specimen is magnified and

observed. The inverted real image is obtained through objective, then the image is further

magnified by the eyepiece.

Application: Biological microscope is used by medical and health units, colleges and universities, research

institutes for the observation of microorganism, cell, bacteria, tissue culture, suspension,

sediment,etc.

Ⅲ. Safety Marks

The Following marks are on the microscope. Figure out the meaning of these symbols and always use the

microscope in the safest way.

Ⅳ. Safety Note

1. Open the box carefully to avoid the accessories, like lens, being polluted by fingerprint or sweat strain,

dropping to ground and being damaged.

2. Do keep the microscope out of direct sunlight, high temperature or humidity, dusty and easy shaking

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

3. When moving the microscope, carefully carry it with the handle and the base.

4. If the bacterium solution or the water splash to the stage, objective or viewing tube, pull out the power

cord at once, and wipe up the microscope. Otherwise, the instrument will be damaged.

5. To keep at least 10cm distance all around between the microscope and other objects for ventilating and

cooling.

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

7. For safety, be sure the main switch is in “O” (off) state and cut off the power supply before replacing

the fuse. Check the input voltage: be sure the input voltage which is 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. Always use the power cord provided by us.

Symbol

Meaning

Power on

Power off

Up Lighting/Down Lighting

F.S.: Field Stop, :Expanding F.S. :Narrowing F.S.

Direction of light intensity. When turning to the tip, the intensity

decreases from strong to weak

SLEEP

Dormant State

LOCK

Light intensity is locked

BestScope International Limited

Ⅴ. Maintenance and Care

1. All the lenses have been adjusted properly, do not dismount them by yourself please.

2. The nosepiece and coarse and fine focusing parts are so delicate that it is forbidden to disassemble them

carelessly by yourself.

3. Keep the instrument clean, wipe dust every day, and do not pollute the optical element when wiping

away the dust on the instrument. Clean the Objective by professional staff once a month.

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

tissue which has been immersed in a small amount of the mixture of xylene(70%) and alcohol(30%). Note

that the xylene and the alcohol are all burned easily. When in use, do not operate the power switch of

various electrical equipment, and do not let them near the fire. Please make sure the room is ventilation.

5. Don’t use organic solvent to wipe the non-optical elements, when you need to clean, use the soft

detergent, please.

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

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

performance of the microscope.

8. Place the instrument in a cool, dry position. After using the microscope, remember to cover it with dust

helmet. Do wait for the lamp house cooling completely before cover.

9. Using environment:

a) Use indoor;

b) Working temperature: 0℃~40℃;

c) Maximum relative humidity: it is 80% for temperature of 31℃, the following is the linear decrease,

70% for 34℃, 60% for 37℃, 50% for 40℃;

d) The highest elevation is 2000m。

10. Storage and transport environment:

a) Range of working temperature: -25℃~+65℃

b) Range of relative humidity: 0%~90%

Warnings:

It may harm the safety of the users if not operating in accordance with the instructions. In addition, it

may damage the microscope. Please operate the microscope strictly according to this instruction.

Transmitted light sources (condenser or collector) may produce harmful optical radiation. Do not look

directly at the transmitted light, which may cause eye damage

◎This microscope will not cause radiation and the electromagnetic interference to the surrounding

environment, totally accordance with the EMC certification standards.

This instruction uses these symbols to mark prominent words:

means it will hurt the operator or damage the equipment (objects around included)

without paying attention to the warnings in this instruction.

★means it will damage the equipment if not following the instruction.

◎means comments (for operating and maintenance)

BestScope International Limited

1.Components Name BS-2073,BS-2074

Model BS-2074

Model BS-2073

Nosepiece

Condenser

Eyepiece

Stage

Viewing head

Objective

Main body

Condenser

Eyepiece

Viewing head

Encoded nosepiece

Stage

Main body

Objective

BestScope International Limited

2.Assembly BS-2073,BS-2074

2.1 Assembly Diagram

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

When assembling the components, make sure that all parts are free of dust and dirt, and avoid scratching

any parts or touching glass surfaces.

Keeping the hexagon- spanner well, when change the spare parts, you will use it.

①

②

Objective

Power cord

BestScope International Limited

BS-2073,BS-2074

2.2 Assembly Procedure

2.2.1 Installing the Objective (Fig.1-2)

1. Adjust the coarse focus knob until the support device of

the mechanical stage reach 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/counterclockwise 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.

★BS-2074 Model: Turn on the power supply. The

corresponding objective magnification on the LCD screen

will be highlighted (as shown in figure 3) when the

nosepiece moves to a certain position. Then install the

corresponding objective at this location.

★Clean the objective 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”, that means the objective enter

the required position--the light path center.

Fig.2

Fig.1

Fig.3

10X

BestScope International Limited

BS-2073,BS-2074

2.2.2 Connecting the power cord (Fig.4-5)

★The cable and cords are vulnerable when bent or twisted,

never subject the power cord to excessive force.

1. Set the main switch① to “O” (off) state before connecting

the power cord.

2. Insert the plug② into the power socket ③of the

microscope safely. Make sure the connection is well.

3. Insert the plug④on the other end of the power cord into

the power supply receptacle⑤ safely. Make sure the

connection is well.

★Do use the supplied power cord all the time. If lost or

damaged, select the same standard cord, please.

★Insert the power adapter into the holeⅡto charge for

charging model.

★Wrap the power cord around the back cover I when not in

use.

★Make sure that used voltage is consistent with the

required input voltage of instrument. If it is inconsistent,

please contact the supplier.

2.2.3 Replace the fuse (Fig.6-7)

The main switch must be set to the state “O” (OFF) before

replacing the fuse. Open the drawer of the fuse box by

Allen wrench at first. Then as shown in the figure 7, push

the fuse out gently through square hole under the fuse

drawer with Allen wrench.

★The middle of the fuse is thin glass. Please be careful

when you open the fuse drawer and push out the fuse.

Fig.4

Fig.5

Fig.6

①

②

③

Ⅱ

Fig.7

BestScope International Limited

BS-2073,BS-2074

2.2.4 Mounting the filters (Fig.8)

Place the required filter into the appropriate hole of the

collector.

2.2.5 LED lamp replacement (Fig.9-11)

◎Generally, LED lamp is very durable, so it is not easy to

damage. If it is unfortunately damaged, please purchase the

LED (Fig.11) from your vendors.

1. Loosen the screw “I”of brightness adjustment knob to take

the brightness adjustment knob down. Loosen six screws of

the bottom plate to open the bottom plate①;

2. Loosen screw② to take the LED lamp③ down and unplug

the connector④from the breadboard. Mount new LED

lamp, tighten screw② and insert the connector fully into

the breadboard.

★Note: Be careful to take the bottom plate down slowly in

case that the wire inside the microscope is pulled apart.

Fig.9

Fig.10

Fig.11

④

①

②

③

Fig.8

BestScope International Limited

3.Adjustment And Operation BS-2073,BS-2074

3.1 Adjustment Set Diagram

Model BS-2073

Tension Adjustment

Collar

Interpupillary Distance

Indicator

Aperture Diaphragm

Main

Switch

Brightness Adjustment

Knob

Left Coarse

Focus Knob

Left Fine Focus Knob

Collector

Phase Contrast Slider

Condenser Focusing Knob

Field Stop

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