Vision MRP-5000 User manual
Trinocular Microscope Model MRP-5000T
PROFESSIONAL BINOCULAR
MICROSCOPE
Model MRP-5000
USER’S MANUAL
Before using this microscope, please read this manual to learn about
the available features to obtain the best results from your microscope.
WARNING: To prevent fire or shock hazard, do not expose this unit to rain or moisture.
CAUTION: No user-serviceable parts inside. Refer servicing to qualified service personnel.
Version 1_0606SW
The manufacturer warrants this instrument to be free from defects in material and workmanship under normal use for
three years from the date of purchase (one year for electrical components). It does not cover damage resulting from
abuse or misuse, repairs or alterations performed by other than authorized repair technicians, or damage occurring in
transit. If you have questions concerning this product or warranty, contact the dealer from whom it was purchased. For
warranty service, microscope should be well packed to avoid damage in transit, preferably in original box and packing.
Include your complete return address and telephone number as well as a description of the difficulty, date and place of
purchase, and ship to the address below. It will be repaired or replaced at no charge and returned. If misuse, alterations,
accident or abnormal conditions of operation caused failure, an estimate for repairs will be provided for your approval
prior to work being performed.
Woodley Equipment Company Ltd, Old Station Park Buildings, St Johns Street, Horwich, Bolton, BL6 7NY
TRINOCULAR MICROSCOPE
MRP-5000 Microscopes may be adapted to function as a Trinocular microscope. The
Trinocular head fits on the base in place of binocular head, third 10X eyepiece (included)
may be used or camera adapter (sold separately based on camera to be used) can be
attached to the vertical tube to allow still photography or video monitor use.
SPECIFICATIONS
Objectives: Achromatic objectives.
Objective Numerical
Aperture (N.A.)
Working
Distance
4X 0.10 37.5mm
10X 0.25 7.31mm
40X 0.65 0.63mm
60X 0.85 0.28mm
100X (oil) 1.25 0.19mm
Total magnifying powers:
Eyepiece & Objective
Auxiliary Lens
4X 10X 40X 60X 100X
10X wide field 40X 100X 400X 600X 1000X
Stage Size: 140x135mm
X-direction movement range: 80 mm; Y-direction movement range: 45 mm
Abbe double lens condenser: N.A. = 1.25 with a built in iris diaphragm.
Fine focusing range: 30 mm. One division is 0.0015 mm. Coarse focusing range: 30
mm.
Interpupillary distance between eyepiece tubes from 55 mm to 75 mm.
Magnifying power of the auxiliary lens: 1X.
STANDARD OUTFIT
MRP-5000 biological Microscope 1 set
Eyepieces: 10X (wide field) 1 pair
Achromatic Objectives: 4X, 10X, 40X, 60X, 100X (oil) 1 piece each
Replacement halogen bulb: (6V 20W) 1 each
Replacement fuse (5A 250V) 1 each
Three wire power cord 1 each
Blue glass filter 1 piece each
Covers for protecting Eyepiece Tubes 2 pieces
Cedar-Wood Oil 1 bottle
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When dis-assembling the microscope for storage, always put the covers into the
eyepiece tubes to prevent dust settling inside the microscope lenses.
The 100X oil immersion objective should be wiped off with a piece of lens paper
immediately after using. If necessary, use optical lens cleaner sparingly.
Bulb replacement: (Unplug unit from power source)
Loosen the screw knob on the underside of microscope and open the panel to expose the
bulb. Use a small screwdriver to loosen the screws holding (the two screws closest to
the bulb) the prongs of the halogen bulb. Note that the prongs of the bulb are held in
place by small brass plates which shift slightly when the screws are loosened. Remove
the old bulb. Important: Do not touch the new halogen bulb with bare hands. Wear
gloves or hold the bulb using tissue or lens paper. Body oils may damage the halogen
bulb. Insert prongs of replacement bulb into top of socket (above the brass plate) and
tighten screws slightly. (The brass plates will move up to hold the prongs in place.)
Close door and hand tighten the thumbscrew knob.
Fuse replacement: (Unplug unit from power source)
Open the fuse holder by unscrewing knob in the direction of the arrow. Remove the old
fuse and insert replacement fuse. Replace fuse holder and screw in place.
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STRUCTURE The Structure of MRP-5000 Microscope OPERATING INSTRUCTIONS
Set light dimmer control to lowest intensity and switch on the power, increasing slowly
to desired level. Begin by placing a microscope slide containing a specimen to be
observed on the object stage and clamp it carefully with the movable spring clip. Adjust
the interpupillary distance between the two eyepieces to the most comfortable position
for the user. The left eyepiece is equipped with a diopter adjustment to fit the user’s
needs.
Using the X and Y Direction Knobs located just below the stage (on the right hand side)
the specimen may be moved to the center of the stage for observation. Once the
specimen is in focus, the X and Y Direction Knobs may be adjusted to observe different
sections of the specimen.
Begin observation of your specimen with the 4X Objective. Turn the coarse focusing
knob until a clear image is obtained, then use the fine focus knob to enhance the
observation of the specimen to its clearest image. On the coarse focus knob is a tension
control ring (located on the right side of the microscope against the stand) which can be
turned to tighten or loosen the tension of the focusing knob to the user’s desired setting.
When the desired view is obtained under the lowest power (4X), rotate the nosepiece to
the next higher magnification (10X). The nosepiece should “click” into position. It
should only be necessary to adjust the fine focus knob slightly to again have a clear view
of the specimen. As the magnification is increased, the user may also find adjustments in
the various methods of regulating the brightness (see below) will improve the view of
the specimen.
It is important to remember when adjusting the focus that the objective should never
touch the specimen. When increasing to 100X magnification, the objective will appear to
be very close to the slide. Because the 100X is an oil immersion objective, a drop of
cedar-wood oil or other immersion oil should be applied in the gap between the
objective and the specimen. (Note: all slides should be prepared with cover slips over
the specimen for observation under the 100X objective.) The 100X oil immersion
objective should be wiped off with a piece of soft clean cloth or lens tissue to remove the
immersion oil immediately after using.
This microscope is equipped with a “locking nut” (located behind the stage against the
arm of the stand) to help prevent the stage from moving up far enough to collide with the
objectives. This locking nut is pre-set in position at the factory and should not require
adjustment. If you find that the stage is not moving up far enough to get your specimen
in focus, try turning the locking knob slightly to allow the stage to travel farther.
1. Eyepiece
2. Graduated Diopter Ring
3. Nosepiece with Objectives
4. Objective Stage
5. Adjustable Locking Nut
6. Tension Control for Focusing Knob
7. Coarse Focus Adjustment Knob
8. Fine Focus Adjustment Knob
9. Mechanical Stage X-Y Adjustment Knob
10. Condenser with Iris Diaphragm and Filter Holder
11. Field Diaphragm for Kohler Illumination
12. Dimmer Control for Brightness Adjustment
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Regulating brightness of the view: There are several ways to adjust the amount of light
which is shed on a specimen, and the light will affect the observation. In most cases, a
better view is obtained by the use of a colored glass filter inserted below the iris
diaphragm. Slide the filter holder to the right to reveal an open ring. Insert the blue
filter into this ring and slide the filter holder back into position under the diaphragm.
The iris diaphragm below the stage can be opened (slide lever back to left) or closed
(slide lever forward) to control the amount of light directed through the condenser. The
condenser assembly under the stage can be shifted up or down by means of the control
knob (left hand side under stage) to effectively move the light beam closer to (up) or
away from (down) the specimen under observation. MRP-5000 is also equipped with a
field diaphragm installed over the collector lens for Kohler illumination. Open or close
this diaphragm as desired by rotating the outer ring to control the amount of light aimed
at the condenser assembly.
Finally, the dimmer control allows the user to adjust the intensity of the halogen light.
Vary these different methods of regulating the light beam on the specimen to obtain the
most effective view for your microscope needs.
After using your Vision microscope, turn the dimmer control to the lowest setting and
turn off the power to prolong the life of the halogen bulb. Lower the stage by rotating
the coarse adjustment knob. The instrument should be covered with a hood to keep dust
off it or dis-assembled and stored in its styrofoam case.
MAINTENANCE
Like other optical instruments, this microscope should be kept in a cool, shady and dry
place, free from dust, fumes and moisture. If not stored in its box, cover with a hood to
protect from dust.
If there is any dirt settled on the lens, wipe it off gently with some lens paper. If alcohol
is used, be careful not to let it penetrate through the lenses and dissolve the gumming.
Any dust settled on the lenses can be blown away with an air blower or wiped off with a
clean soft camel hair brush. In cleaning mechanical parts and applying non-corrosive
lubricant, take special care not to touch the optical elements, especially the objective
lenses.
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APPLICATION
Vision Model MRP-5000 Microscope is one of the most modern designed instruments
for clinical examination and teaching demonstrations in laboratories, colleges and
medical fields. It is also an ideal instrument for biological, bacteriological, pathological
and pharmaceutical research. These microscopes are equipped with achromatic
objectives, planoscope eyepieces, Abbe condenser, built-in variable light source
providing Kohler illumination and coarse and fine focus adjustment to give a nice sharp
image. The magnifying powers range from 40X to 1000X.
The binocular microscope offers the advantage of being able to observe the specimen
with both eyes at the same time, allowing more comfort for the user when compared to a
monocular microscope. The depth of field of the binocular microscope is longer and a
stereo image can be obtained when observing a specimen.
ASSEMBLY INSTRUCTIONS
1. Remove microscope stand from box and styrofoam packing and place it on a stable
work table.
2. Remove all plastic bags and covering (these can be discarded).
3. Remove binocular head from the packing.
4. Remove the plastic cap covering the neck of the microscope base. Fit the binocular
head into the neck of the microscope stand and tighten with the screw clamp as
necessary. The head is 360° rotatable and can be adjusted to any position desired.
5. Remove the plastic eyepiece tube covers and insert eyepieces into each eyepiece
tube.
6. Attach power cord to the back of microscope and connect to power source.
Your Vision microscope is now ready for use.
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