Valley Microscope VM200 Series User manual

VM200 Series Biological Microscope
Instruction Manual
To ensure your safety and to obtain satisfactory performance, please study
this manual before using the microscope.
VM200

1. Technical Parameters
1. Total Magnification
2. Head : Inclined 30°, Monocular head or Binocular/Trinocular Siedentopf
head, Interpupillary adjustable distance of 48-75mm, Diopter adjustable
range ±5°, anti-fungal.
3. Nosepiece: 4 position nosepiece.
4. Mechanical stage: Size 125mm×116mm , Y-X travel 35mm×75mm.
5. Focusing system: Coaxial Coarse and Fine Focusing Knobs, Coarse
stroke maximum 25mm, Fine division 2µm.
6. Condenser: Abbe N.A. 1.25, Adjustable aperture, up-down range 12mm.
7. LED Light Source: Input voltage DC5V～12V,50/60Hz , ≥1000mA, Power
adapter input voltage AC100V~240V,50/60Hz, LED lamp: Color
temperature 4000K～5000K, Working life above 100,000 hours.
VM200 Monocular Microscope VM200 Trinocular Microscope
Eyepiece
10x
10×
10x
10x
Objective
4×
10×
40×
100×
Magnification
40×
100×
400×
1000×
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2. Parts of the Microscope
VM200 Series Binocular Microscope
Component Parts:
A1—— Eyepiece
A2—— Head（Monocular, Binocular or Trinocular）
A3—— Objective
A4—— Mechanical Stage
A5—— Abbe Condenser
A6—— Illuminator
A7—— Base
A8—— Main Body
A9—— DC Input Socket
A10—— Power Adapter
A11—— Power Cable
Operational Parts:
B1——Nosepiece
B2——Slide Holder
B3——Iris Diaphragm
B4——Tension Adjusting Ring
B5——Mechanical Stage x/y Handle
B6——Coarse Focusing Knob
B7——Fine Focusing Knob
B8——Potentiometer
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A1
A2
B1
A3
B2
A4
A5
B3
A6
A7
A8
B6
B8
B7
B5
B4
A9
A10
A11

3. Operation
4. Maintenance
1. Don’t touch the lenses with your fingers. Dust on lenses should be
cleaned with a soft brush, absorbent cotton or lens paper with the
mixture of alcohol and ether (proportion 1:4).
2. Metal surfaces should be cleaned with an organic solution such as
alcohol, ether or a gentle all-purpose surface cleaner.
3. Plastic parts should be cleaned with a soft cloth and clear water.
4. The microscope should be stored in a cool and dry environment ,
without vibration, without dust, without acid/base or other corrosive gas.
5. Normal operating conditions：indoor temperature：0℃～40℃，
maximum relative humidity：85%
6. When the microscope is not in use turn off the power and keep covered
with provided dust cover.
▲To maintain the instrument’s top performance it is recommended that it
be serviced regularly. In case of damage contact Valley Microscope via
email: [email protected]
▲Any unauthorized service/repairs may void the warranty.
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Observing
Rotate nosepiece to 10x
objective and focus.
Open slide holder (B2), put slide on
mechanical stage (A4) move stage using x/y
handle (B5), position slide into view.
b. Put specimen.
Rotate nosepiece (B1), put 4x objective into
optical path. Turn coarse & fine focusing
knobs (B6, B7) to focus.
c. Put 4x objective into optical,
path and focus.
Adjust head (A2) to make two fields into one
(bino or trio), then adjust eyepiece diopter to
be consistent.
d. Adjust interpupillary distance
and diopter.
Adjust lever of aperture diaphragm (B3) to
get the best field image.
e. Adjust condenser aperture
diaphragm.
a. Switch on the power ,adjust
brightness.
Connecting DC Input socket with power
adapter and power cable(A9, A10, A11),plug
power adapter (A10) into socket, turn on and
adjust potentiometer (B8).

5. Caution:
1. Disassembly or repairs by Unauthorized persons.
The microscope has been factory adjusted before shipping.
Unauthorized persons should not disassemble or remove any other
parts.
If you have any questions, please contact either Valley Microscope or
your local distributor.
2. Excessive input voltage.
This instrument is designed for wide input voltage (DC5V~12V), power
adapter input voltage (AC100V~240V,50/60Hz) applicable to most
areas. If the supply voltage exceeds this range, the instrument will be
seriously damaged.
3. Preventing burns and fire.
Alcohol, gasoline, paper and other flammable materials must be kept
away from the illuminator.
4. Carrying and operation.
Power must be turned off before moving. Carry microscope placing one
hand under the base while holding the arm.
This microscope is a precision instrument, and should be handled with
care, severe shock can cause permanent damage.
Recommended environmental conditions:
Indoor temperature: 0 ℃~ 40 ℃
Maximum relative humidity: 85%
High temperatures or high humidity may cause mildew, fog or dew on
the optical components causing damage.
To protect the environment, please properly dispose of
packing materials via recycling.
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Troubleshooting
Please use this table below for solving problems. If this table does not
offer a solution contact Valley Microscope:
[email protected]
Trouble
Cause
Solution
Switch on but no
light.
Plug is unreliable
Check cables
Bulb is broken
Replace bulb
Fuse is broken
Replace fuse
Bulb is flickering.
Bulb is broken
Replace bulb
Brightness of view
field is poor or
uneven.
Bulb brightness is low.
Rotate potentiometer to
increase brightness.
Objective isn’t in correct optical
path.
Rotate the objective in
correct position.
The size of aperture
diaphragm is too small.
Adjust the size of
aperture diaphragm.
Lens (objective,eyepiece,
condenser, illuminator
collector) has dust.
Clean lens
Position of condenser is too
low .
Rotate condenser up.
Image isn’t clear
(contrast or
resolution is poor).
Cover glass thickness is off-
standard.
Use required thickness
cover glass (0.17mm).
Cover glass of specimen isn’t
in up direction.
Place specimen
correctly.
Surface of objective lens is
dirty.
Clean it
Immersion oil isn’t used for
100×objective (oil).
Use immersion oil
There is a bubble in the
immersion oil.
Clear the bubble away
Size of aperture diaphragm
isn’t correct.
Adjust the size of
aperture diaphragm .
Position of condenser is too
low.
Rotate condenser up.
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Technical specifications are subject to change without notice for update.
One side of image is
dark or image is
moving as focusing.
Objective isn’t in correct optical
path.
Rotate the objective to
correct position.
Specimen isn’t placed
correctly.
Place specimen level in
specimen holder.
Objective touches
specimen when
changing from low
power to higher
power.
Cover glass of specimen
doesn’t meet the requirement.
Place specimen
correctly.
Cover glass is too thick.
Use required thickness
cover glass (0.17mm).
Image observed with
both eyes isn’t in
proper alignment.
Interpupilary distance isn’t
adjusted correctly.
Adjust Interpupilary
distance.
Visual fatigue after
observation.
Diopter isn’t adjusted correctly.
Adjust diopter
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