BestScope BS-6000A User manual

Metallurgical Microscope
Model Number
BS-6000A/AT
User Manual
This manual is written for Metallurgical Microscope of BS-6000A/AT. For safety and for
exerting the best performance, making you familiar with the instrument entirely, it is strongly
recommended that you read this manual carefully before using the microscope.

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Contents BS-6000A/AT
User Notices
1 Components Name…………………………………………………… 3
2 Installation …………………………………………………………… 4
2.1 Installing Diagram ……………………………………………………… 4
2.2 Installing steps …………………………………………………………… 5
3Adjustment & Operation ………………………………………… 9
3.1Adjustment System Installing Illustration……………………………… 9
3.2 Operation …………………………………………………………………… 11
4 Technical Specifications …………………………………………… 14
5 Trouble Shooting …………………………………………………… 15

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Use Notices BS-6000A/AT
I. Safety note
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, dusty and 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. 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. When running, the lamp house and nearby parts will be very hot. Please ensure there is enough
cooling room for them.
6. Make sure the instrument is earthed, to avoid lighting strike.
7. For safety, be sure the main switch is in “O”(off) state before replace 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.
8. 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.
9. 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 possible 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 xylene. (note that the
alcohol and the xylene are all burned easily, do not let them near the fire, and use them in a
drafty room as possible as you can.)
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.

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1.Name of Components BS-6000A/AT
Eyepiece Binocular viewing head
Metallurgical
Illumination System
Filter Board
Nosepiece
Objective
Body

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①②
⑦
2． Installation BS-6000A/AT
2.1 Installing Illustration
The following shows the installing order of the spare parts. The number expresses the installing process.
Before the installing, make sure there is no dust and stain on the spare parts. No marks by
outside force on the surface of the spare parts or glass.
Keeping the hexagon- spanner well, when change the spare parts, you will use it.
Body
Objective
Metallurgical
Illumination System
Binocular Viewing Head
10X Eyepiece
③
④
Filter Set
⑤⑥
Cable Wire

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2.2 Installing Setps
Fig.2
Fig.1
2.2.1 Installing the Objective (Fig.1-2)
1. Adjust the coarse &fine focus knob, till the
mechanical stage to the low limited place.
2. Screw down the objective to nosepiece from left or
right side, low magnification objective first.
Install all the objective form low to high
magnification following the clock hand.
According to this way to install the objective will
make it easier to change magnification in
operation.
Clean the objective frequently.
At first, use the 10X objective to looking for
image, then change another one.
Turn the objective till hear the “Kai. Kai” sound,
make sure the objective enter the objective
center.
2.2.2 Installing the Metallurgical
Illumination Set (Fig.3-4)
1. Insert the Metallurgical Illumination Set with
Lamp House installed into the Microscope
Body. Align the position and screw down the
bolt with hexagon wrench.
2. Plug the power cord①of the Metallurgical
Illumination Set into the socket②. Then screw
the bolt firmly on the socket.
Fig.3
Fig.4

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Fig.6
Fig.5
Fig.7
2.2.3 Install the binocular viewing head
(Fig.5-6)
Insert the binocular viewing head in the
head of the body, turn to the right place, then
fixupitbybolts
2.2.4 Install the eyepiece (Fig.7-8)
Insert the eyepiece in the eyepiece tube till
end. Fig.8 picture shows the station after
the installing.
Fig.8

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Fig.12
BS-6000A/AT
2.2.5 Install the color filter (Fig.9-10)
Put the filter into the jack of the illumination
system.
★There is three type of color filter. The color is
blue, yellow and green.
2.2.6 Connecting the Power Cord (Fig.11-13)
★Do not force on the Power Cord. The cable and
wire are easier to be damaged when bended or
wrapped.
1. Before connecting the power cord, switch the main
On-Off ①to “O”(off).
2. Plug the power cord②into the socket③on
microscope safely. Make sure be connected.
3. Plug the power cord④into the power source
socket⑤safely. Make sure be connected.
★Do use the supplied power cord all the time. If
lost or damaged, select the same standard cord,
please.
★This machine has High-Band voltage. It can
adapt any voltage between 100V and 240V.
2.2.7 Replacing the fuse(Fig.11-12)
Do remember to turn the main switch①on the
state of “O”(off) before replacing the fuse, and
unplug the power cord. Rotate the fuse⑥kits out
of the holder⑦by the “--”type screwdriver,
replace a new fuse, then rotate back to the holder
again.
Fig.9
Fig.10
Fig.11
Fig.13

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Fig.15
Fig.16
Fig.17
2.2.8 Installing and replacing the lamp
(Fig.14-17)
Please use the specified halogen Lamp 6V30W.
1. Pull out the lamp-house①as the picture show
(Fig.14)
2. Hold to the bulb ①after you wrap it with gauze or
other protection materials, then depress the
plugs②into the jack③on the lamp house, ensure
the filament and the bolt④are in a same
level.(Fig.15)
3. Replacing the lamp when using or soon after
When using, or soon after it is turned off, the lamp,
the lamp house and nearby parts will be very hot
and will cause serious burns. Please turn the main
switch on “O” (off), pull up power plug, and make
sure the bulb, the lamp house and periphery are all
cool. Then, you can do your replacing.
Please insert the lamp gently, or it will be
damaged by excessive extrusion.
Do not touch the Halogen bulb with your hands. It
will shorten the service life or cause it to burst. If
you leave fingerprints on the surface carelessly,
clean it with a dry soft cloth.
4. Align the socket①and pins②and align the bolt③
and the jack④. Then push the lamp-house into the
Metallurgical Illumination Set until
covered.(Fig.15-16)
Fig.14

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3.Adjustment &Operation BS-6000A/AT
3.1Adjustment Set Diagram (Fig.18-19)
Left Fine Focus Knob
Left Coarse Focus Knob
Interpupillary Distance
Diopter Ring
Light Switch
View field Diaphragm
Aperture Diaphragm
Gather Lens Adjust Lever
Fig.18
Tension
Adjustment Collar

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Right Coarse
Focus Knob
Main Switch
Y-axis Adjustment Knob
X-axis Adjustment Knob
Fig.19
Slide clip

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3.2 Operation 3.2.1 Open Lamp-House (Fig.20)
Connect the power, turn on the main switch (figure
15) to “-”(on).
3.2.2Adjusting the brightness(Fig.21)
Turning the brightness adjustment knob
anti-clockwise, the voltage raise, and the brightness
strengthen; turning it clockwise, the voltage decline,
and the brightness weaken.
Using the lamp in a low voltage condition, will
prolong the use life.
3.3.3Adjusting the Illumination Set (Fig.22)
1. Make sure the ray brightness in view field is even,
have no filament shadow. If there is filament shadow,
please adjust the Condenser Knob③to proper
position.
2. Adjust the View field Diaphragm①and Aperture
Diaphragm②until the two Diaphragm open size is
properly. Then you can get clear image. When in
using, you need to adjust simultaneously, part
observe until to the high-point.
★ Aperture Diaphragm: The aperture diaphragm
(iris diaphragm) is designed for matching the
objective's numberical aperture, not use for
adjusting brightness. When the objective is
adjusted full of light, the Aperture Diaphragm is
in best state and the image is clear. What to be
notice is that when switch objective, the Aperture
Diaphragm size should change along with the
adjusting.
★ View field Diaphragm : Used to control view field
size, to reduce Anti- cast light and Dizzled light.
When the objective is adjusted full of light, the
ima
g
eisclearandinhi
g
h-
p
oint state.
Fig.20
Fig.22
Fig.21

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3.3.4Adjusting the Diopter (Fig.23)
1. Observe the right ocular tube with your right eye.
Turn the Coarse & Fine Focus Knob to focus the
specimen.
2. Observe the left ocular tube with your left eye. If not
in focus just adjust the Diopter Ring①to make it in
focus.
★ The range of Diopter Ring is ±5, as the value align
the reticle②of the ring.
3.3.5 Adjusting the Interpupillary Distance
(Fig.24)
The interpupillary distance range:55mm～75mm.
When observing with two eyes, hold on the left and
right prism holder, turn around the axis, adjust the
interpupillary distance until the left and right fields
of view coincide completely.
3.3.6 Focusing (Fig.25)
1. Use the 10×objective focus, to avoid the objective
touch with the specimen, you should raise the
mechanical stage at first, let the specimen close to the
objective, then slowly separating them to focus.
The operator can converse turn the coarse focus
knob①to get the specimen down ,and search images
in the 10×ocular simultaneously, then use the fine
knob②to focus. At this moment, you can replace
other magnification objectives safely, and focus
without the risk of destroying the specimen.
If you need to fix the stage on a vertical position to
make the observation become more convenience,
take use of the locking set.
Fig.23
Fig.24
Fig.25

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3.3.7 Placing Specimen (Fig.26)
1. Place the slide on the mechanical stage. Use the stage
clips to clamp the slide gently.
2. Turn the portrait and lateral adjustment knob of the
mechanical ruler, move the specimen onto the required
position.
Be careful when changing the objective. If you finish
the observation with the short working distance
objective, and want to change another one, be
careful of not letting the objective touch the
specimen.
3.3.8 Adjusting the Tension Adjustment Collar
(Fig.27)
The tightness of the tension adjustment collar has
adjusted before leaving factory, if finding it’s loosing
(the mechanical stage drop itself because of
deadweight), please turning the tension adjustment
collar①until the tightness is in order. Turn it along the
direction show in the picture, the Coarse Focus Knob②
will become tighter. Turn anti-direction will become
loosen.
If the mechanical stage drop itself, or even lose focus
just after adjusting the fine focus knob③.Meanthe
tightness of the Coarse Focus Knob②is too low. You
should turn the tension adjustment collar along the
direction show in the picture to make it tighter.
Fig. 26
Fig. 27

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4．Technical Specifications BS-6000A/AT
1. Main specifications
Optical System Infinite Optical System
Viewing Head Compensation Free Trinocular Head, Inclined at 30, Interpupillary distance:
48-75mm
Eyepiece (Ocular) View field line 18mm
Nosepiece Forward Quadruple Nosepiece
Objective Infinite plan Achromatic: 4×, 10×, 20×(choose and buy), 40×
Focus System Coaxial Coarse and Fine Focusing System, Sensitivity and Graduation of Fine
Focus: 0.002mm.
Stage Double layer mechanical stage, area: 150×140mm, movement range: 75×50mm
Lamp-House halogen lamp 6V20W
2. Objective
Magnification Numerical Value
Aperture
Diaphragm(N.A)
Working Distance
（mm）
Conjugate Distance
（mm）
4X 0.10 25.4 ∞
10X 0.25 11 ∞
20X（choose and buy）0.40 6.06 ∞
40X 0.60 3.7 ∞

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5．Trouble shooting BS-6000A/AT
Some problems will happen in the using of the microscope, you could solve them according the following
list.
PROBLEMS REASON FOR PROBLEMS SOLUTION
I. Optical Part:
1. Illumination is on,
but the field of view
is dark.
The poor contact exists in the lamp house and
the illumination system. Ensure the contact pin and the lamp holder pin work well
The lamp bulb spoils change a new bulb
The brightness adjustment knob is set too
dark Adjust the knob in a proper position
No use the appointed lamp bulb use the specified halogen Lamp 6V20W
2. The edge of the
field of view has
shadow or the
brightness is
asymmetry
The nosepiece is not in the located position Adjust it into the located position
The surface of the lamp become black Change a new lamp bulb
The filament shadow not clean up Move in Condenser adjust knob front and back to change the focus position to clean up
the filament shadow.
The surface of the lens is moldy or has
contaminant Clean the lens
3. Find dust and stain
in the field of view There are stains on the specimen Change the specimen
There are stains on the eyepiece Clean the eyepiece
4. The image is
defocus,
low-resolution
The objective damage Mend and correct the objective (send to
factory for overhauling)
The lens of the objective and eyepiece is
moldy or have contaminant Do cleaning
The opening of Aperture diaphragm and field
diaphragm is not proper, and too much
astigmatism.
Change the opening of the aperture
diaphragm and field diaphragm
Fine focus system is broken Examine and repair the fine focus
system(send to factory for overhauling)
The objective is not in the center of the light
path Turn the nosepiece to the located position
5. The image focus
surface incline(one
side is clear and the
other side is faint)
The illumination light incline serious Adjust the filament position ,let the light distributing of the field of view become
symmetrical and bright
The specimen don’t correctly place
Put the specimen on the right position
The nosepiece is not in the located position Turn the nosepiece in the required position
6. The eyes are
uncomfortable, the
left and right fields of
view is not
coincided .
The interpupillar distance is not correct Adjust the interpupillar distance correctly
The diopter is not right Adjust the diopter according your sight
Can’t adapt to binocular observation
When look into the objective, do not stare at
the specimen but at the whole field of view,
or move the eyes away to see other things,
then back into the objective

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II. Mechanical Part:
1. The coarse focus knob
is hard to run The tension adjustment collar is too tight Loose properly
2. The image can’t stay
on the focal plane in the
process of the
observation
The tension adjustment collar is
too loose Tighten properly
III. Electric Part:
1. The lamp can’t light
No power supply Check the power cord, and connect
them exactly
the installation of the bulb is
wrong Install the bulb correctly
The bulb burn out Change a new bulb
2. The bulb burn out in a
high frequency Not use the specified lamp Use the required lamp
3. The height of the
brightness is not enough
Not use a appointed lamp use a appointed lamp
The brightness adjustment knob
is used wrong Adjust the brightness adjustment knob in a correct way
4. The light glimpse The bulb is going to spoil Change the bulb
The power cord have a poor
contact Check the power cord, and connect them exactly