BestScope BS-2064 Series User manual

Version No.: V1.0
BS-2064 Series Biological
Microscope
Instruction Manual
BS-2064B BS-2064T
This instruction manual is for the operation guide, troubleshooting
and maintenance to BS-2064 Series Biological Microscope. Please study
this manual thoroughly before operating, and keep it with the instrument.
The manufacturer reserves the rights to the modifications by technology
development. On the basis of operation ensured, technical specifications
may be subject to changes without notice.

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Contents BS-2064 Series
Before Use
1. Components............................................................................................................................... 1
2. Assembling................................................................................................................................. 3
2-1 Assembling Scheme ......................................................................................................... 3
2-2 Assembling Steps ............................................................................................................. 4
3. Operation................................................................................................................................... 7
3-1 Set Illuminations .............................................................................................................. 7
3-2 Place the Specimen Slide ................................................................................................. 7
3-3 Adjust Focusing................................................................................................................ 7
3-4 Adjust the Focusing Tension ............................................................................................ 8
3-5 Adjust the Diopter............................................................................................................ 8
3-6 Adjust the Interpupillary Distance ................................................................................... 8
3-7 Center the Condenser ...................................................................................................... 9
3-8 Adjust the Field Diaphragm ............................................................................................. 9
3-9 Adjust the Aperture Diaphragm .................................................................................... 10
3-10 Select the Light Path .................................................................................................... 10
3-11 Use the Eye-cap ........................................................................................................... 11
3-12 Use the Color Filter ...................................................................................................... 11
3-13 Use the Oil Objective (100X) ........................................................................................ 11
3-14 Replace the Fuse.......................................................................................................... 12
3-15 Assembling and Operation of Simple Polarizing.......................................................... 12
3-16 Assembling and Operation of Disc Phase Contrast Condenser.................................... 12
3-16-1 Centering Halo.......................................................................................................... 13
3-17 Assemble and Use the TV Device ................................................................................. 14
3-18 Assemble and Use Intermediate Optical Splitter ......................................................... 14
4. Technical Specifications............................................................................................................ 15
5. Troubleshooting ....................................................................................................................... 17

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Before Use BS-2064 Series
1. Operation Notice
1. As the microscope is a high precision instrument,
always operate it with care, and avoid physical
shake during the operation.
2. Do not expose the microscope in the sun directly,
either not in the high temperature, damp, dust or
acute shake. Make sure the worktable is flat and
horizontal. Following environment is required
when operating: Indoor temperature: 5℃～40℃,
Max relative humidity: 80%.
3. When moving the microscope, use both hands to
hold its back hand-clasping ① and the front base
②, and lay it down carefully (see Fig. 1).
★It will damage the microscope by holding the
stage, focusing knob or head when moving.
4. When working, the surface of light source will be
very hot. Make sure there is enough room around
the light source for cooling.
5. Connect the microscope to the ground to avoid
lightning strike.
6. For safety, make sure the power switch is at “O”
(OFF) and power it off before replacing the bulb
or fuse (See Fig. 2), and wait until both the bulb
and bulb holder have cooled down.
★Bulb selected only: 6V/30W Halogen bulb (philips
5761).
7. Wide voltage range is supported as 100~240V.
Additional transformer is not necessary. Make
sure the power supply voltage is in this range.
8. Use the special wire supplied by our company.
9. All the power OFF devices have been set in the
position where is easy to operate.
2. Maintenance
1. Wipe the lens gently with a soft lens tissue. Carefully wipe off oil or fingerprints with
tissue moistened with a little of 3:7 mixture of alcohol and ether or dimethylbenzene.
★Alcohol and ether is flammable. Don’t place these chemicals near to fire or fire
source. Please use them in a ventilated place when turning on/off the electric device.
2. Do not use organic solution to wipe the surface of other components. Please use the
neutral detergent if necessary.
3. If the microscope is damped by the liquid, cut off the power immediately and wipe it
Fig. 1
Fig. 2

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dry.
4. Never disassemble the microscope. It will influence its function or damage it.
5. After using, cover the microscope with a dust cover.
3. Safety Sign
Sign
Signification
The surface gets hot and don’t touch it with bare hand.
Read the introduction before use. Unsuitable operation would lead to
person hurt or instrument faulty.
|
Main switch is ON.
O
Main switch is OFF.

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1. Components BS-2064 Series
BS-2064 Series Biological Microscope Components
Eyepiece
Trinocular Head
Light Path
Selecting Pole
Inner
Hexagon
Spanner
Objective
Stage
Condenser
Up-down Knob
Condenser Center
Adjusting Screw
Field Diaphragm
Adjusting Ring
Y-axis Moving
Knob
X-axis Moving
Knob
Fine Focusing
Knob
Tension
Adjustment
Knob
Coarse
Focusing Knob

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BS-2064 Series
Diopter
Adjustment Ring
Random Upper
Limit Knob
Body
Nosepiece
Condenser
Power
Switch
Fuse
Power
Socket
Light
Source
Group
Fine
Focusing
Knob
Light
Adjustment
Knob
Coarse
Focusing
Knob
FocusArm

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2. Assembling BS-2064 Series
2-1 Assembling Scheme
Following is the Assembling Scheme to describe how to assemble the components, and the
numbers denote the assembling order.
★Before assembling, make sure there is no dust, dirt or other materials which will disturb it.
Assemble carefully and do not scrap any part or touch the glass surface.
①
②
③
④
⑤
⑥
⑦
⑧
Halogen Bulb
Light Source Group
Power Cord
CX40 Body
Stage
Condenser
Trinocular Head
Objective
Eyepiece

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BS-2064 Series
2-2 Assembling Steps
2-2-1 Assemble the Halogen Bulb
Hold the bulb ① with clean glove or tissue and insert
the pins ② into the receptacles ③ thoroughly. Make
sure the bulb is vertical (See Fig. 3).
★Don’t touch the bulb with fingers. If there is a
fingerprint left on the bulb, please wipe it with
clean soft cloth.
★Before replacing the bulb, make sure to cut off the
main power and wait for both the bulb base and
bulb cooling down.
★Bulb selected only: 6V/30W Halogen bulb (Philips
5761).
2-2-2 Assemble the Light Source Group
Align the oriented pin① and power pin② on the
light source to oriented holder③ and power
socket④, and then push light source into arm
smoothly and plug it thoroughly. (See Fig. 4)
2-2-3 Assemble the Stage
(1) Loosen the lock-screw① on the stage fully. (See
Fig. 5)
(2) From a rear area of the rounded hole center on
the base, carefully ring the two “V”buttons on the
bottom of the stage into the “V”rounded groove②,
then screw down the lock screw①.
★The stage of different size and shape is available
according to customer.
2-2-4 Assemble the Condenser
(1) Rotate the coarse focusing knob① to raise stage
to the highest. (See Fig. 6)
(2) Rotate the condenser up-down knob② to lower
the condenser bracket to the lowest.
(3) Loosen the condenser lock-screw③ fully.
(4) Swing out the front lens of condenser with the
Fig. 3
Fig. 4
Fig. 5
Fig. 6

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BS-2064 Series
scale forward. Make the lock screw of condenser in
alignment with the groove of the condenser stand.
Push the condenser into the innermost of stand.
(5) Screw down the condenser lock-screw③, and
raise the condenser to the highest position with the
condenser up-down knob②.
2-2-5 Assemble the Head
(1) Loosen the head lock-screw① fully. (See Fig. 7)
(2) From a little right position, insert the coattail
interface on the bottom of head into the hole of
middle head with a little left inclined. Keep the two
eyepiece tubes forward, and then screw down the
lock screw①.
2-2-6 Assemble the Objective
Rotate the coarse focusing knob to lower the stage.
Install the objectives into the nosepiece from the
lowest magnification to the highest in a clockwise
direction. (See Fig.8)
★Search and focus the sample by low magnification
objective (5X or 10X) when operating. Then get
change to the high magnification ones according
to the observation requirements.
★When replacing the objective, rotate the
nosepiece until it sounds “ka-da”, to make sure
the objective is in the center of the light path.
2-2-7 Assemble the Eyepiece
(1) Take down the cover of eyepiece tube①. (See
Fig.9)
(2) Insert the eyepiece②into the eyepiece tube,
until touch the bottom.
Fig.7
Fig. 8
Fig.9

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BS-2064 Series
2-2-8 Connect the Power Cord
(1) Make sure the power switch is at “O” (OFF). (See
Fig. 10)
(2) Insert one end of power cord① into the power
socket② of the microscope.
(3) Insert the other end of power cord into the power
supply socket.
★Don’t use strong force when the power cord is
bended or twisted, otherwise it will be damaged.
★Use the special wire supplied by our company. If
it’s lost or damaged, choose one with the same
specifications.
★Connect the power cord appropriately to make
sure the instrument is connected to ground.
Fig. 10