BestScope BS-2080MH4 User manual

User Manual
Multi-viewing Microscope
BS-2080MH4/4A
BS-2080MH4 BS-2080MH4A
This manual is written for multi-viewing microscope BS-2080MH4 and BS-2080MH4A. For
safety, exerting best performance of the instrument, and making you familiar with the
instrument entirely, we strongly recommended that you carefully read this manual before using
the microscope.

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Contents BS-2080MH4/BS-2080MH4A
Use Notices
1、Name of Components ……………………………………………………3
2、Installation ……………………………………………………………… 4
2-1、Order of Installation ……………………………………………………………4
2-2、Installation Steps ……………………………………………………………… 5
3、Adjustment ………………………………………………………………9
4、Operation ………………………………………………………………10
4-1、Primary Set Operation …………………………………………………… 10
4-2、Adjusting Minor Set ………………………………………………………… 15
5、Technical Specifications ………………………………………………… 16
6、Trouble Shooting …………………………………………………………17

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Use Notices BS-2080MH4/BS-2080MH4A
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. 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.
4. When running, the lamp house and nearby parts will be very hot. Please ensure there is enough
cooling room for them.
5. Make sure the instrument is earthed, to avoid lighting strike.
6. 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.
7. 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.
8. 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-2080MH4/BS-2080MH4A
Primary Trinocular
Viewing Unit
Minor Binocular
Viewing Device
Connecting
Fitting
Body Teaching Image
Rotation Mirror
Right Minor
Column support
Microscope
Body
Video Port
Video Port
Minor Binocular
Viewing Device
Primary Trinocular
Viewing Unit
Body Teaching Image
Rotation Mirror
Microscope Body
Lamp House

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2. Installation BS-2080MH4/BS-2080MH4A
2-1 Order of Installation
*The installation of BS-2080MH4A is similar to BS-2080MH4.
①Installing the Mechanical Stage
②Installing the Lamp House
③Installing the Objective
④Connecting Teaching Image Rotation Set
⑤Connecting Left\Right Minor Set
⑥Stack Mounting Teaching Image Rotation Set
⑦Stack Mounting Minor Set
⑧Installing the Trinocular Viewing Unit
⑨Installing Binocular Viewing Device
⑩Installing Eyepiece and Video Port (optional)
⑤
④
③
②
①
⑦
⑥
Objective
Video Port (optional)
Right Minor
Column Support
Trinocular Viewing Unit
Microscope Body
LED Pointer Image
Rotation Set
Lamp
House
Image Rotation
Connecting Tube (1)
Mechanical
Stage
Image Rotation
Connecting Tube (2)
⑨
⑧
⑩

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Figure 2
2
③
④
⑤
BS-2080MH4/BS-2080MH4A
2-2 Installing steps
Figure 3
2-2-1 Installation Body’s Chassis
1. Installing the Mechanical Stage
Support Device
Before installing the device, be sure to
adjust the coarse focus knob①. Make the
guide board②(see figure 1) down to the
lowest position, so you can install the
mechanical stage support device easily.
Hold on the mechanical stage support
device (figure 2), place it from the top of
the guide board (figure 1), let the device
(figure2) falling free until it reach the limit
position. Use the hexagon wrench screw
down the locking block③, make the stage
support device (figure1) and the guide
board fixed together.
The mechanical stage ⑤have been
adjusted horizontally with ④and fixed
together before leaving factory. Do not
disassembly unless necessary, that may
affect the observation precision of the
instrument.
Figure 1
②
①

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BS-2080MH4/BS-2080MH4A
2-2-2 Installing and Replacing the Lamp
(figure4, 5)
Please use the specified halogen Lamp 6V30W①.
1. Hold the bulb①after you wrap it with gauze or
other protection materials, and then deeply insert
it into the lamp holder.
2. Replacing 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 switch②on “O” (off), pull out power
plug, and make sure the bulb, the lamp room 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 bare
hands. It will shorten the service life or cause it
to burst. If you leave finger marks on the
surface carelessly, clean it with a dry soft
cloth.
2-2-3 Installing the Lamp House (figure 4, 5, 6)
Keep the bolt on the lamp house
(figure 4) in line with the jack on the back
of the microscope (like the show of figure
5), then pushing the lamp holder into the
illumination kits gently until they are
against each other (figure 6).
Figure 6
Jack
Figure 5
②
Figure 4
bolt
①

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BS-2080MH4/BS-2080MH4A
2-2-4 Installing the Objective
1. Adjusting the coarse focus knob until the
support device of the mechanical stage
reach its low limit position.
2. Wresting the lowest magnification
objective onto the nosepiece from the
left or the right side (figure 7), then
push the nosepiece clockwise, then
place other objectives by the sequence
of low to high magnification ( figure 8).
Installing objective this way will make
the change of magnification to be easier
while in using.
Clean the objective regularly, the
objective of the inversed microscope
is very sensitive to dust.
When operating, use 10 ×
magnification objective to search
specimen and focus firstly, then
replace with higher magnification
objective if necessary.
When replacing the objective, slowly
turning the nosepiece until you hear
“clicked”, that means the objective enter
the required position--the light path
center.
Figure 7
Figure 8

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螺钉
BS-2080MH4/BS-2080MH4A
2-2-5 Installing Eyepiece
Pull out the lid of eyepiece which on the
eyepiece tube, insert eyepiece(figure 9)
into eyepiece tube until end. The result is
showing in the figure 12.
2-2-6 Installing Video Port (optional)
4. Insert the video port (figure 10) into the
trinocular unit (figure 11), then screw
down the bolt to fix it, the result is
showing in figure 12.
Figure 12
Figure 10
Figure 9
9
Figure 11
Eyepiece
bolt
Bolt

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3.Adjustment BS-2080MH4/BS-2080MH4A
Pointer Knob
Swing out Condenser (with
Aperture Diaphragm)
Video Port (optional)
Light Path Selector Lever
Lateral Adjustment Knob
Pointer rocker
Portrait Adjustment knob
Right Coarse Focus Knob
Main Switch
Right Coarse Focus Knob
Brightness
Adjustment Knob
Figure 13
Clocking Set
Left Coarse
Focus Knob
Left Fine Focus
Knob
Condenser Focus
Knob
Field Diaphragm
Figure 14