BestScope BS-5070B User manual
BS-5070B/T
BS-5070BTR/TTR
Polarizing Microscope
User Manual
To obtain optimum performance and to familiarize yourself fully with the use of your
microscope, we recommend that you read this manual thoroughly before use. Retain this
instruction manual in an easily accessible place near the work desk for future reference.
BS-5070B/T do not have reflected illumination system, for other parts, they are the same
as BS-5070BRT/TTR, the operation is also similar.
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Safety notice ……………………………………………………………1
1.Structure and nomenclature……………………………………………4
2. Technical parameter and specification …………………………………7
3. Configuration …………………………………………………………9
4.Assemblage …………………………………………………………10
5. Operation ……………………………………………………………13
6. Maintenance…………………………………………………………19
7. Troubleshooting………………………………………………………20
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Safety notice
1. Transportation
As microscope is a precision instrument, handle with care,
avoiding impact or abrupt movement during transportation.
Do not push or pull the microscope during using, otherwise
the precision for image will be reduced.
1.1 Hold the curve and keep the microscope in balance
1.2 Do not hold the focusing knob, eyepiece tubes and stage
as these parts are movable. Troubles maybe caused by such
handles.
Do not make specimen or filters fall off.
2
.
Working Environment
2.1 Temperature range is 0℃～40℃and the max. humidity is 85%
2.2 Altitude :<2000m
2.3 Barometric：86KPa～106KPa
2.4 Avoid high temperature and humidification otherwise there will be fog or mold on
the lens
2.5 Keep the environment breezy and cover the microscope with the dust-cover
2.6 Avoid violent vibration as the vibration will reduce the image’s quality
3. Focusing knob
Never turn the left and right focusing knob in the
adverse direction at the same time. Do not turn the
coarse focusing knob when the stage reaches max.
position. These improper operations will make
focusing structure unworkable.
4. Clamp
The clamps fix the microscope firmly during transportation.
Please remove them before using.
5. Do not take the microscope apart
as it will be damaged. Such operations might have bad effect on the performance and
make user get an electric shock or injured. Please contact with manufacturers if there
is any problem.
Never turn the left and right focusing knob in
the adverse direction at the same time
curve
clamp
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6. Use the space parts supplied by the manufactures
The bulb, fuse and electronic cord have been assembled already in the factory and
please make sure to use the spare parts of them supplied by the manufacturers.
Improper bulb, fuse and electronic cord will destroy microscope and cause fire. Please
make sure to use PE electronic cord when using extra-long electronic cord.
Spare bulbs: halogen bulb 12V 20W, 12V50W（reflect）
LED lamp 5W(transmission), 10W（reflect）
Spare fuse: 250V 1A delayed model, 5 × 20 minitype fuse
7. Mounting the bulb
Never touch the surface of bulb with your hand directly. Please use gloves or cloth
material when you mount the bulb to avoid leaving fingerprints. Fingerprints or stains
should be wiped off with a tissue moistened with a small amount of alcohol. The
fingerprints will etch on the bulb’s surface and make brightness lower and life cycle
shorter.
Please make sure the bulb’s touching points are Ok as it will not light or short circuit
if the bulb’s touching points are damaged. Insert the bulb’s legs into the bulb holder
firmly. The bulb will go out if its legs have not been inserted into the holder firmly.
Such Operation may cause short circuit or smoking. At last, please make sure if the
collector has been mounted properly
8. Temperature for illumination
There will be high temperature when the bulb is lightened, never move the collector
when the bulb is lightened. Do not touch the bulb within 30 minutes after it has been
gout out. Make sure the bulb has been be cooling enough time (at least 30 minutes) to
avoid scald.
Do not put fibre, papers and incendive things (eg. Gasoline, aether, methanol and
ethanol) close to the bulb.
9.Make sure to turn off the power supply before assembling microscope,
replacing bulb or fuse.
Notice:
The instruction you buy may not including some products mentioned in this
instruction. Safety has been considered during design while users still have the
possibility to be injured and the instruction to be damaged when improper
operation made. Please pay much more attention to read this instruction
carefully before using and keep it properly to make sure it will be got when it is
necessary.
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Mark Meaning
1.Hot surface, don_t touch with your hands
2.Read the instruction manual carefully before operating the micuscop
unproper
operation will cause hurt or dameger to the operator and instrumen
3.Switch on
O 4.Switch off
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1. Structure and nomenclature
Eve fubes fixture
Bertrand lens
focusing plate
Bertrand lens unit
Transmission/reflect
Conversion switch
Microscope body
Bertrand lens centering
screw
condenser
Revolving round stage
Li
g
htness ad
j
ustin
g
Objective
Nose
p
iece
Bertrand lens unit
clam
p
in
g
knob
Analyzer
Bertrand lens unit
Binocular head
Cross Eyepiece
Eyepiece
Com
p
ensator
Reflected illumination
system
Aperture stop
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Coarse focusing knob
moment adjusting ring screw
Fine focusing
knobscrew
Consender movement
knobscrew
Fine focusing
Knob screw
Coarse focusing
knob screw
Condenser
centering screw
Objective centering
screw
The top lens of
the condenser
Polarizer knob screw
Clamping knob screw
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Lamp house
Knob screw
Mirror selector lever
Polarizer Field stop
knob
Aperture stop
knob
Field stop
centering screw
Aperture stop
centering screw
Color filter
Lamp house
Power plug Power switch
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2. Technical parameter and specification
2.1 Optical system: infinity optical system
2.2 Objectives: stress-relieving infinity plan objectives
Magnification NA Cover glass thickness(mm)
4X 0.10 0.17
10X 0.25 0.17
20X 0.40 0.17
40X 0.65 0.17
60X 0.80 0.17
100X (OIL) 1.25 0.17
20X 0.4 0
40X 0.65 0
60X 0.8 0
100X 0.9 0
2.3 Eyepiece:
Category Magnification Field of view（mm）
Eyepiece: 10X 20
Crisscross eyepiece 10X 20
Eyepiece with scale of
crosshair
10X 20
eyepiece with gridding 10X 20
2.4 Total magnification
objective 4X 10X 20X 40X 60X 100X
eyepiece 10X
Total
magnification 40X 100X 200X 400X 600X 1000X
2.5 Nosepiece
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Centerable quintuple
2.6 Rotatable stage：
Diameterф160mm，360°scale。Minimum reading 6’by means of vernier scale
2.7 Coaxial Coarse and Fine Focusing System,
Sensitivity and Graduation of Fine Focus: 0.002mm
Focusing movement range：24mm
2.8 Illumination system:
Transmission light：Halogen lamp 12V20W
Reflected light：Halogen lamp 12V50W
2.9 Eye tubes:
Trinocular tube
2.10 Filter:
Blue, green, frosted,gray
2.11 Test plate compensator
λtest plate（first-order red）,1/4λtest plate, Quartz wedge test plate
2.12 condenser：NA=0.9
This manual suits for next models
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