BestScope BS-3044 User manual

ZOOM STEREO MICROSCOPE
BS-3044, BS-3045
Instruction Manual
This instruction manual is for the microscope BS-3044, BS-3045.To insure safety and
obtain optimum performance and familiarize yourself fully with the use of this microscope.
We recommend that you read the manual thoroughly before operating the microscope, Attain
this manual instruction in an easily accessible place near the microscope for the further
reference.

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CONTENT BS-3044, BS-3045
CONTENT………………………………………………………………… 1
Before use ………………………………………………………………… 2
1．Nomenclature……………………………………………………………… 3
2．Assemblage ……………………………………………………………… 4
2．1 Figure ……………………………………………………………… 4
2．2 Process ……………………………………………………………… 5
3．Operation ……………………………………………………………… 7
3．1 Trinocular head………………………………………………………… 7
3．2 Stand…………………………………………………………………… 8
4. Technical parameter ………………………………………………… 9
5．Troubleshooting ……………………………………………………… 9
6．Outfit …………………………………………………………………… 10

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BEFORE USE BS-3044, BS-3045
1. Notice
1. The microscope is composed of precision components, Handle with care to prevent
abrupt.
2. 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.
3. Microscope should be place dry and clean place. Do not expose the microscope in the
sun directly, Avoiding high temperature and violent vibration.
4. Handle stand with one hand and the base with another hand when moving microscope.
5. If the bacterium solution or the water splash to the stage, objective or viewing tube, pull
out the cord at once, and wipe up the microscope. Otherwise, the instrument will be
damaged.
6. The microscope illumination house will get hot when operating. Make sure enough room
to disperse heat.
7. Connect with land to prevent lighting strike.
8. Professional people to take the electronic components to prevent electricity strike.
9. Use the factory supplied power cord ,pleased
2. Maintenance
1. All lenses had been precisely adjusted and do not take the microscope apart.
2. Do not take the Trinocular head and focusing system apart.
3. The instrument should be kept clean, and prevent pollution while cleaning.
4. Wipe glass components softly, fingerprints and oil marked on it should be wipe off with a
tissue moistened with a small mount of xylene or a 3:7 mixture of alcohol and ether.
5. Never use the organic solution to clean the other surface, if necessary, pleased choose
neutral detergent.
6. Turn off electricity if microscope get moisture when operating, then wipe it off.
7. Do not take any parts of microscope apart, or else effecting microscope function.
8. The instrument should be kept in dry place, cover the microscope with the dust cover
after the illumination house temperature come down.

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Trinocular Head
EW 10×eyepiece
Glass Plate
Base
Focusing Knob
Stand
Cable
Shift Knob
Switch
Lock-Screw
ZOOM STEREO MICROSCOPE BS-3044, BS-3045
1．NAME OF CONPONTENTS
BS-3044, BS-3045 ZOOM STEREO MICROSCOPE

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2. Assembly BS-3044, BS-3045
2.1 Assembly graph
Graph below indicate the assembly process.
●Check it is clean before assembling.do not scratch any components and the surface of glass.
③
EW10X eyepiece
①
②
④
Cable
Trinocular Head
Stand

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BS-3044, BS-3045
2.2 Assembly process
④
2.2.1 Assembly Trinocular head(fig. 1)
Loosen the lock-screw ③of stand④, put the
Trinocular head ②into the hole of stand, tight
the lock-screw.
2.2.2 eyepiece assembly(fig1, fig2, fig3)
Take the dust cover①apart of Trinocular
head ②. Insert the 2pcs WF10X eyepiece into
tube.
Working condition:
1. Temperature:0℃～40℃,
2. Hot or moisture will damage the instrument.
3. Place the instrument in a clear condition.
cover it the instrument when no using.
4. The microscope should be placed without
vibration.
①
②
③
④
Fig 1
Fig 2
Fig 3

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BS-3044, BS-3045
2.2.3 Cable connecting (fig.4)
1．Turn to “O”position⑤before connecting
power⑥.
2．Insert the pin ⑥into microscope plug safely.
3．Insert the pin ⑦into the power plug.
2.2.4 Use the glass stage(fig.5)
Set the glass stage plate⑧on the center of base,
clamp the slide with two clips⑨when using the
plate.
●Using LED light illumination.
●Input: AC 100V～240V.
Fig 4
Fig 5
⑤
⑦
⑥
7
⑧
⑨

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3. Adjustment BS-3044, BS-3045
3.1 Trinocular head
3.1.1 Interpupillary adjustment (fig.6)
Adjusting Interpupillary after observation
for another one using. Hold the two tubes, ①
adjust interpupillary to obtain a clear image..
3.1.2 Diopter adjustment(fig.7)
1．Turn the diopter adjusting rings ②to the zero
2．Set the sample on the stage.
3．Turn the zoom adjusting knob ③to the 5X
position, focusing the sample.
4．Turn the zoom knob ③to 0.6X position.
Observe though the left side eyepiece.
Adjusting the adapter ring ②to focus
sample, then look though the right
eyepiece, adjusting the adapter ring ②to
focus sample.
5．Repeat process 3 and process 4 until the image
was located on focus, the image also the clear
when change the magnification.
●working distance:115mm, set up the tray if
necessary.
●operating: take the lock-screw down by
screwdriver. Driver up the tray ⑤to a higher
lock-screw hole. Tighten it.
3.1.3 Three optical path parfocality
adjustment(fig.8)
1．When the diopter is adjusted，the image should
be clear both in the eyepiece and the camera. If
the image is not clear in the camera, move the
cover of ⑥, loose the inner screw and using the
screwdriver to rotate the prejudicial to make the
image clear. Tight the screw and put on the
cover.
Fig 6
Fig 7
①
⑤
④
screw
②
③
6
Fig 8

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BS-3044, BS-3045
3. 2 Stand
Fig 9
Fig 11
3.2.1 Focusing knob adjustment (fig9,fig10)
1．Pull down the skateboard ②by focusing knob①
in a low position to prevent the microscope head
drop because of focusing knob loosen.
2．Hold two side focusing knob ①. Left focusing
knob keep still, turn the right focusing knob.
Move up or down according to the strength of
right focusing knob.
3．Light adjustment: adjust base illumination with
right side knob ③. Adjust Top illumination by
left side knob④.
Fig 10
Attention :
1．Clean the touch-area after observing
contagious sample.
2．Take away sample before move microscope.
3．Hold the stand and the base to prevent
incline during move microscope.
③
④
loose
tight
①
②

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4．Technical Parameter BS-3044, BS-3045
4.1 Zoom ratio: 1:8
4.2 Zoom range: 0.6×～5×
4.3 Eyepiece: 10×/Φ22 Wide field, interpupillary adjustable
4.4 Binocular/ Trinocular head: incline at 30, interpupillary range :55～75mm
4.5 Working distance: 100mm
4.6 Range of movement: 100mm
4.7 Illumination: LED lamp illumination
4.8 Input:100-240V～, 0.15A, 50/60HZ
4.9 Magnification and field.
5. Trouble shooting
The function of microscope will no work efficiently for the unfamiliar using. Check the table
below if meet some troubles, then take proper action. Ask sales agent if the trouble will no be
tackled after check..
Trouble
Cause
Remedy
Page
Interpupillary distance is not correct
Readjust it
1. Double images
Diopter adjustment is not correct
Readjust it
7
Dirt on the specimen
Clean specimen
2. Dirt appears in the view field
Dirt on the surfaces of eyepieces
Clean eyepieces
2
3. Image is not clear
Dirt on the surface of objectives
Clear objectives
Diopter adjustment is not correct
Readjust diopter
4. Image is not clear while focusing
change
Focusing is not correct
Readjust it
7
5. The focusing knob is not smooth
The focusing knob is too tight
Loosen it to a
suitable position
8
6. The image is obscure because of
the head slipping down during
observation
The focusing knob is to o loosen
Tighten it to a
suitable position
8
Eyepiece
10X
Field of view 22
15X
Field of view 14
20X
Field of view 11
Optional
Objective
Working
Distance(mm)
Magnification
Actual Field
（mm）
Magnification
Actual Field
（mm）
Magnification
Actual Field
（mm）
none
100
6～50×
36.7～4.4
9~75×
23.3～2.8
12~100×
18.3～2.2
0.5X
220
3~25×
73.3～8.8
4.5~37.5×
46.7～5.6
6~50×
36.7～4.4
0.7X
136
4.2~35×
52.4～6.3
6.3~52.5×
33.3～4
8.4~70×
26.2～3.1
2X
45
12~100×
18.3～2.2
18~150×
11.7～1.4
24~200×
9.2～1.1

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6．Configuration BS-3044, BS-3045
Components
Specification
Quantity
Standard Outfit○
Body
Main body stand
1
●
head
Binocular/Trinocular zoom
head
1
●
Transmit(LED)
1
●
Reflex(LED)
1
●
Illumination
Ring fluorescence lamp
○
10×eyepiece
2
●
eyepiece
20×eyepiece
2
○
0.5×auxiliary objective
1
○
Objective
2×auxiliary objective
○
Black and white board
1
●
Observe board
Glass board
1
●
Cable
Cable
1
●
●:Standard, ○: Optional