BestScope BS-6024RF User manual

Scientific Research Metallographic
Microscope
Model Number: BS-6024RF/TRF, 6025RF/TRF
Instruction Manual
BS-6024RF/TRF BS-6025RF/TRF
This manual is written for Scientific Research Metallographic Microscope of BS-6024RF/TRF, 6025RF/TRF. To ensure
the safety, obtain optimum performance and to familiarize yourself fully with the microscope, it’s strongly
recommended that you read this manual carefully before operating this microscope.

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Content
User Notice...............................................................................................................2
1. Components Name ...............................................................................................4
2. Structure...............................................................................................................5
3. Adjustment and Operation....................................................................................7
4. Installation ..........................................................................................................16
4-1 Installation diagram .......................................................................................16
4-2 Installation Steps............................................................................................17
5. Technical specifications.......................................................................................21
6. Trouble Shooting.................................................................................................24
6.1 Optical system................................................................................................24
6.2 Mechanical parts............................................................................................26
6.3 Electrical parts................................................................................................26

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BS-6024, 6025
User Notice
I. Safety Symbols
The following signs are on the microscope. Figure out what these symbols meanings and always use the
microscope in the safest way.
II. Safety Precautions
1. Be careful when moving the microscope, to avoid the lens glass sticked by fingerprints and sweat stains
for the sake of observation, to avoid the lenses dropped or damaged.
2. Do keep the microscope out of direct sunlight, high temperature or humidity, dusty and easy shaking
environment. Make sure the stage is smooth, horizontal and firm enough.
3. Hook into the upper slot behind the rack by one hand, and hold the front bottom of the rack by the other hand
when moving the microscope.
4. If the carrier, objective or viewing tube is spilled with bacteria or solution, you should immediately pull out the
power wire and dry the solution or water to ensure that the microscope is dry. Otherwise, it is possible to
damage the instrument.
5. Be sure to keep at least 10cm away from the left, right, top, rear of the microscope from walls and other objects,
so as not to plug natural convection air, which is used for cooling.
6. Make sure the instrument is earthed, to avoid lightning strike.
7. is used to ensure safety, you should make sure the main switch is in "O" (off) state and cut off the power
supply before replacing the bulb or 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. Use the special wire provided by our company.
Symbol
Meaning
Main power switch is on
Main power switch is off
Ground connection
/
Upper / Lower lighting
Button press for upper lighting, button do not press for lower lighting
Trash bin
F.S-Diaphragm, --Aperture diaphragm opening direction, -Narrow direction
The switch of Light off while people leave
Photograph
Wrench used here
Light intensity direction, weaken to the left, strengthen to the right
CE certification passed

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BS-6024, 6025
III. Maintenance
1. All the lenses have been adjusted properly; Please do not dismount them by yourself.
2. The nosepiece, coarse and fine focusing parts are so delicate that it is forbidden to disassemble them carelessly
by yourself.
3. Keep the instrument clean, and do not pollute the optical elements when wiping away the dust on the instrument.
The objective lenses should be cleaned once every other month by professional.
4. We can clean the contaminations such as fingerprints and oil smudges on the prism by using the Lens paper and
solution, which is mixed by ether(70%) and alcohol(30%).
Noting that 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.
Using neutral detergent to clean them.
6. You should cut off the power immediately and dry it if the microscope is wetted by the liquid when using the
microscope.
7. Do not try to disassemble any part so as not to affect functionality or lower the performance of the microscope.
8. The instrument should be kept in a cool, dry place and should be covered with a dust shield when not be used.
Cover the microscope after the lamp cooling down.
9. Working environmental requirements:
a) Indoor use; b) Temperature range:10℃~35℃;
c) Maximum relative humidity: when the temperature reached 31 ℃ is 80%, linear reduction of temperature
to 34℃ is 70%, when the temperature reached 37℃ is 60%, when the temperature reached 40℃ is 50%.
10. Storage and transportation requirements:
a) Temperature range: -40℃~+70℃ b) relative humidity range: 10%~100%
c) Atmospheric pressure range: 500hpa～1060hpa
warning:
Please operate the microscope in the manner specified in this manual, Otherwise, not only user's safety will be
endangered but also the microscope will be damaged. The microscope shall always be operated in accordance with
this instruction.
◎ This microscope will not cause radiation, electromagnetic interference and other phenomena to the
surrounding environment. It meets CE&UL certification standard.
The following symbols are used in this instruction to highlight text:
means failure to observe the warning in this instruction will result in personal injury to the
operator and/or damage to the instrument (including objects near the instrument)
★means failure to follow this instruction will cause instrument damage.
◎means annotation (for operation and maintenance)

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BS-6024, 6025
1. Components Name
The main difference between BS-6024RF/TRF and BS-6025RF/TRF is that BS-6024RF/TRF is manual microscope, BS-
6025RF/TRF has motorized nosepiece. BS-6024RF and BS-6025RF only have reflected illumination, BS-6024TRF and
BS-6025TRF have reflected and transmitted illumination, we will mainly introduce the operation of BS-6025TRF,
other models can refer to BS-6025TRF.
Eyepiece
Reflected Illuminator
Trinocular Viewing Head
Objective
Nosepiece
Stage
Condenser
Microscope base
BS-6025TRF

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BS-6025TRF
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7
8
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11
10*
9
14
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17
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20
1*
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BS-6024, 6025
2. Structure
1. Function shortcut keys
2. Filter switch lever
3. Coarse and fine lifting hand-wheel
4. Focusing upper position locking hand-wheel
5. Condenser height adjustment hand-wheel
6. Upper and lower lighting switch button
7. brightness control button
8. Long distance condenser
9. "ECO" infrared induction device
10. Objective switch key area
11. Stage movement hand wheel for X-direction
12. Stage movement hand wheel for Y-direction
13. Condenser diaphragm adjusting ring
14. Extended function board fastening screw
15. Extended function board
16. Excitation light label
17. Rotating spectroscope assembly room
18. Check partial slot
19. The partial slot
20. ND filter slots
* Manual version does not have this function

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2
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7☆
16
15*
BS-6025TRF
BS-6024, 6025
1. Switching lever for optical path observation
2. Aperture switch button
3. Viewing diaphragm
4. Aperture diaphragm
5. Fastening screw for condenser
6. Condenser height adjustment hand-wheel
7. Photograph button
8. Field aperture size adjustment knob
9. Fine focusing hand wheel
10. Coarse focusing hand wheel
11. Lamp room fastening screw
12. Earthing screw
13. Lamp room socket
14. Lamp room plug
15. USB interface
16. Universal wrench

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BS-6024, 6025
3. Adjustment and Operation
Fig.1
Fig.2
3-1 Turn on the power (Fig.1)
Turn on the power, change the main switch on the
back of microscope (as shown by the Fig.1) into "-"
(power on) state.
3-2 Light intensity adjustment and upper & lower
light source switch (Fig.2)
As shown by the arrow in Fig.2, The light fades as the
button rotates. Instead, the light enhances.
As shown in Fig.2, when pushing the switch bar of up
and down light source, the upper light source is
lighting, the symbol is ; when pulling out
the switch bar of up and down light source, the
down light source is lighting, the symbol is
.
3-3 Light source socket (Fig.3)
As shown in Fig.3, there are red dots in the socket
and plug, the direction should be adjusted before
the plug is inserted into the socket, and red dots
should be inserted in alignment. When hearing
"click", it means ok.
Noting screen prints on the left and right socket
corresponds to switch levers of up and down light
source. As shown by the Fig: means light
socket of up light source, which corresponds to the
pushed state of switch bar for up and down light
source; means light socket of down light
source, which corresponds to the pulled state of
switch bar for up and down light source.
switch bar
of up and
down light
source
Dimmer hand-wheel
Red dot
Fig.3
When changing switch levers of up and down
light source, the statement of which is
different from the statement shown by the fig,
please check the plug and make sure the plug
is in the socket.

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3-4 Specimen preparation and placement (Fig.4, Fig5)
1. The specimen (Num② in Fig.4) for observation is fixed
on the sample plate (Num① in Fig.4) by use of silly putty
(Num③ in Fig.4), and ensure the specimen surface is
parallel to the sample plate. You can use the nipping
machine to press the sample. (as shown in Fig.5).
2. Place the sample plate of the fixed
specimen on the microscope stage.
Be careful when replacing the objectives, after the
specimen was observed with a short-range objective lens,
the objective may collide with the specimen when it is
need to replace the objective.
3-5 Pupillary distance adjustment (Fig.6)
The distance range between the pupils is 47mm～78mm.
When observing, we adjust the distance between the
pupils by holding the right and left prism eyepiece tube,
rotating around the axis until both left and right field of
view combined and feel comfortable.
Fig.6
Fig.4
①
②
③
Nipping
machine
Fig.5

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BS-6024, 6025
3-6 Three position light-path switch (Fig.7)
Select the desired light path and light intensity ratio as shown by Fig.7
Diagram
Push-pull rod Operation
Eye: Camera light ratio
Completely pushed
100: 0
Middle
20: 80
Completely pulled
0: 100
3-7 Focusing (Fig.8, Fig.9)
1. When no cameras are used:
Push-pull rod (as shown in Fig.7) is completely pushed. When binocular
observing, you can use 10× objective to focus. To prevent the specimen
from colliding with the objective lens, The mechanical stage should be
raised, which brings the specimen close to the objective, then slowly
reverse rotation of the coarse focusing wheel so that the specimen could
be down, meanwhile, you can search the image in the 10× eyepiece, finally
you can focus to clear with the fine focus hand-wheel. At that time even if
you convert to other multiplier objective, the specimen can reach the same
focus without any damage.
2. When Photographic devices are used:
Push-pull rod (as shown in Fig. 7) is completely pushed. Making binocular
observations, when the image is clear, then pulled it out, then it can be
observed by the camera system.
 The fine focusing hand wheels on both sides are held by magnets for easy
removal. All you need is the arrow shown in the Fig.9, Press one end of
the hand wheel inward to make the other curl, then gently pull off the
end of the cock, so hand-wheel is easily detached. Assembly also needs
only hand wheel center alignment put in. This function makes the two
fine-tuning hand wheels conveniently inter changeable, to avoid fine-
tuning hand-wheel and platform handle collision.
3-8 Adjust the tightness of the focusing hand-wheel (Fig.9)
The rotation direction is shown in the Fig.9, the more rotation, the tighter
the focusing hand-wheel is. On the contrary, the less rotation, the less tight
the focusing hand-wheel is.
Light-path
switch sign
Push-pull
rod
Fig.7
Fig.8
Fig.9
Tension adjustment ring