BestScope BS-2080F(LED) User manual

LED Fluorescent Laboratory
Biological Microscope
Model Number
BS-2080F(LED)
User Manual
This manual is written for LED fluorescent laboratory biological microscope BS-2080F(LED). 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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CONTENT FL-LED
Content ………………………………………………………………………………… 1
User Notices ………………………………………………………………………… 2
Name of Components……………………………………………………………… 3
LED FluorescentAttachment……………………………………………………4
1. Components Name……………………………………………………………………4
2. Installation………………………………………………………………………………5
3. Adjustment and Operation…………………………………………………………6
4. Configuration and Specifications …………………………………………………7
Microscope Part ……………………………………………………………………8
1. Installation………………………………………………………………………………8
2. Adjustment……………………………………………………………………………13
3. Operation………………………………………………………………………………16
4. Technical Specifications ……………………………………………………………20
5. Trouble shooting………………………………………………………………………21

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UserNotices BS-2080F(LED)
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 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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NameofComponents BS-2080F(LED)
E
y
e
p
iece
(
Ocular
)
Microscope Body
Trinoclular Viewing Unit
Nosepiece
Objective
Mechanical Stage
Lamp House
LED Fluorescent Attachment
Fig.1

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LEDFluorescentAttachment BS-2080F(LED)
This fluorescent attachment is designed for infinite optical system.
1. Components Name
FL-LED fluorescent attachment: (Fig.1)
①Brightness adjustment knob
②Condenser focusing knob
③Main body of fluorescent attachment
④Filter subassembly
⑤Fastening bolt
⑥Fluorescent objective
⑦Light barrier control lever
⑧Power adapter
Electrical parameters：
External electric supply：110V-240V 50/60 Hz
Input Voltage：DC7.5V 1000mA
Fluorescent illuminator：LED 3W (Blue)
Fig.2
①
③
②
⑥
⑧
④
⑦
⑤

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2. Installation
For installation instruction, take BS-2040FB(LED) biological microscope for example:
●BS-2040FB(LED) LED Fluorescent Microscope=biological microscope BS-2040B+FL-LED
attachment
Fluorescent Microscope Assembly：
1) Loosen the clamping screw①on biological microscope BS-2040B and remove the binocular viewing
head from the body of microscope by revolving it counterclockwise by 90°.
2) Insert the main body of fluorescent attachment into the upper part of the microscope BS-2040B ,adjust
the orientation and tighten the clamping screw①.
3) Insert the binocular viewing head into the main body of the fluorescent attachment, adjust its
orientation and tight the clamping screw②to fix the head.
4) Replace the original biological objective with special fluorescent objectives④.
Fig. 3
NOTE:
1. Both top and bottom illumination system can be used for fluorescent microscope. But
for this fluorescent attachment, only top illuminator can be used while bottom
illuminator is closed. The filter subassembly is set at the middle position (B excitation
state); For normal biological observation, use bottom illuminator while top
illumination is closed. The filter subassembly is set at empty position.
2. It is necessary to adjust biological microscope system firstly before fluorescent
attachment is used.

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3. Adjustment and Operation
3.1 Fluorescent Operation System
3.2 Fluorescent Microscope Operation (Fig.4, Fig.5)
1. Set the filter subassembly①at the middle position to engage B excitation filter into the light path.
2. Connect the power supply onto the microscope, turn on the main switch and adjust brightness adjustment
knob④to a proper intensity.
3. Adjust the condenser focusing knob③to make the field of view full.
4. Place the specimen on the stage for observation and operation.
5. During observation, use the light barrier lever②to obscure the light path so that the main switch is not
open and closed frequently.
●The standard FL-LED fluorescent attachment are equipped with b-excitation filter (in the middle
position). If you need other types of filters, please purchase separately.
Fig.4
Condenser focusing knob③
Main switch and brightness adjustment knob④
Light barrier control lever②
Filter subassembly①
Fig.5
B-sto
p
filte
r
B-excitation filter

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3.3 Precautions for Operation
1. Check that the power voltage and frequency is consistent with the product requirements.
2. Ensure that the plug is inserted fully and well connected.
3. If only for transmitted light observation (biological microscopy), pull out the filter subassembly or
push inward it to engage the empty position into the optical path.
4. When Using the oil immersion objective (100x), be sure to use specified immersion oil for
fluorescent observation.
5. If you interrupt observation within a short time, use the light barrier to block light.
4. Configuration and Specifications
Components Name Specifications Outfit
Fluorescence main body ●
Infinite plan fluorescence
objective 4×, 10×, 40×, 100× ○
Filter subassembly B excitation ●
Filter subassembly G excitation ○
3W LED Lamp (465-475nm blue) ●(with B excitation)
Illuminator
3W LED Lamp (520-530nm green) ○(with G excitation)
Adapter DC7.5V 1000mA ●
NOTE：“●” Standard outfit ;“○”Optional

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MicroscopePart BS-2080F(LED)
1. Installation
1-1 Installation Diagram
The following figure shows the installation sequence of the components. The number in the figure
show the installation steps.
Before installing, be sure every components is clean, do not score any parts or glass surface.
Keep well with the supplied hexagon wrench. When changing the components, you will need it again.
Microscope Body
Lamp House
Mechanical Stage Support Device
10×Wide Field Eyepiece
Infinite Plan Objective
Trinocular Viewing Unit
Video Port (optional)
①
②
③
④
⑤
⑥
Fig.6

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Fig.8
1-2 Installation Steps
Guide
Board
Fig.9
Fig.7
Locking
Block
and
Bolt
1-2-1 Installing the Mechanical Stage
Support Device
Before installing the device, be sure to adjust
the coarse focus knob. Make the guide
board (see Fig.7)down to the lowest
position, so you can install the mechanical
stage support device easily.
Hold on the mechanical stage support device
(Fig.8), place it from the top of the guide
board (Fig.7), let the device (Fig.8) falling
free until it reach the limit position. Use the
hexagon wrench screw down the locking
block, make the stage support device
(Fig.7) and the guide board fixed together.
The mechanical stage have been adjusted
horizontally and fixed together before
leaving factory. Do not disassembly
unless necessary, that may affect the
observation precision of the instrument.