Swift M7000 SERIES User manual

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SWIFT M7000 SERIES
The Swift M7000 Series offers tremendous value and quality. The smaller
footprint accommodates small spaces, yet, it has all the standard
research microscope features. This series is ideal for advanced high
school biology, college or vet/medical applications. Combining rugged
design with high-performance semi-plan objectives (sealed 40x and
100x), this microscope is ideal for multi-user, clinical, and taxing student
environments.

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PICTURED M7000C

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COMPONENTS OF THE MICROSCOPE
ARM – the vertical column (attached to the base) which supports the
stage and contains the coarse and fine adjusting knobs and focus
mechanism.
BASE – the housing and platform of the instrument to which the arm is
attached. The base stands on rubber feet and contains the illuminator
assembly.
COARSE FOCUS – the larger, outside knob of the focus control which
facilitates rapid and heavy movement of the focusing mechanism. In
order to prevent gear damage, the focus control is equipped with
an upper limit stopper that protects the high magnification objectives
and slides. The system is also furnished with a tension control to prevent
“stage drift”.
COAXIAL CONTROLS – the focusing mechanism moves the stage up and
down to bring the specimen into focus. The coaxial focusing system
combines both the coarse and fine focus into one knob located on both
sides of the microscope. The clutch mechanism is equipped with a safety
slipping feature (which comes in to play at either end of the focus range)
as a protection for the brass rack and steel pinion gears. The control is
designed for a continuous operation over the range of the stage
movement.
CONDENSER – the function of the condenser is to provide full
illumination to the specimen plane and to enhance the resolution and
contrast of the object being viewed. The standard condenser of the
M7000 has a Numerical Aperture of 1.25 with iris diaphragm. It is
mounted in a sub–stage focusing assembly that can be raised or lowered
for precise light control.
DIOPTER ADJUSTMENT – located on the left eyepiece of the binocular
head and is designed to help compensate the difference between the
user’s eyes.
EYEPIECES – the upper optical element that further magnifies the
primary image of the specimen and brings the light rays in focus at the
eyepoint.

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FINE FOCUS – the smaller inner knobs of the focus control which allows
for slow and subtle focusing movement to bring the specimen into sharp
focus.
HEAD – the upper portion of the microscope which contains the
refracting prisms and the eyepiece tubes which hold the eyepieces.
Note that the head rotates, allowing operation from the front or back.
ILLUMINATION – the M7000C base uses a 3.4V, .06W LED (Part # MA2215).
The M7000D base uses a 12V, 20W halogen bulb (Part # MA781).
IRIS DIAPHRAGM – a multi-leaf round shaped device which is controlled
by a lever. It is similar to a camera shutter, and is installed under the
condenser. By moving the lever back and forth, the iris diaphragm opens
and closes, increasing and decreasing the contrast of the specimen. If
the image is “washed out” the iris diaphragm is opened too wide. If the
image is too dark the iris is not open wide enough.
NOSEPIECE – the revolving turret that holds the objective lenses,
permitting changes in magnification by rotating different powered
objective lenses into the optical path. The nosepiece must “click” into
place for the objectives to be in proper alignment.
OBJECTIVES – the optical systems which magnify the primary image of
the instrument. Magnifications are usually 4X, 10X, 40X and 100X.
STAGE – the table of the microscope where the slide is placed for viewing.
This component moves upward and downward when the focusing knobs
are turned. The stage of the Swift M7000 has a built-in mechanical stage
with a sub-stage “X” and “Y” axis controls. A finger clip holds the slide
securely and is designed to be a slow return holder to provide protection
to the specimen.
OTHER IMPORTANT TERMINOLOGY
“COATED” LENS – in attempting to transmit light through glass, much of
the light is lost through reflection. Coating a lens increases the light
transmission by reducing or eliminating reflection, thus allowing more
light to pass through.

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COMPOUND MICROSCOPE – a microscope having a primary magnifier (the
objective) and a second (the eyepiece) to both conduct light, amplify
magnification and convert the image into a field of view easily seen by
the human eye.
COVER GLASS - thin glass cut in circles, rectangles or squares, for
covering the specimen, usually a thickness of 0.15 to 0.I7mm. The
majority of specimens should be protected by a cover glass, and must be
covered when using 40XRD or 100XRD objectives.
DEPTH OF FOCUS - the ability of a lens to furnish a distinct image above
and below the focal plane. Depth of focus decreases with the increase of
numerical aperture or with the increase of magnification.
DIN – (Deutsche Industrial Normen originally Deutsches Institut für
Normung.)A German standard for the manufacturing of microscope
lenses. DIN lenses will be interchangeable from one DIN microscope to
another.
EYE POINT or EYE RELIEF – the distance from the eyepiece lens to your
eye where a full field of view can be seen.
FIELD OF VIEW - the area of the object that is seen when the image is
observed. It may range in diameter from several millimeters to less than
0.1mm.
FOCAL LENGTH - parallel rays of light after refraction through a lens will
be brought to a focus at the focal point. The distance from the optical
center of the lens to the focal point is the focal length.
NUMERICAL APERTURE (NA) – a measure of an objective’s light gathering
capabilities. The concept may be compared to the F-valve in
photographic lenses. Generally speaking, N.A. values of less than 1.00 are
"Dry" objectives. Values of 1.00 or greater require oil as a medium. Please
note that condensers are part of the optical system and are also assigned
an N.A. value. That value must be at least as high as that of the highest
objective used.
PARFOCAL – a term applied to objectives and eyepieces when practically
no change in focus is needed when changing objectives. The objectives
on your Swift M7000 microscope are parfocalized at the factory so that
only a slight adjustment of the fine focus knob is needed to maintain
focus when switching magnification.

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RESOLUTION or RESOLVING POWER – the ability of a lens to define the
details of the specimen at a maximum magnification. This is governed by
the NA (Numerical Aperture) of the lens. For example, a 40X objective
with NA 0.65 has a maximum resolving power of 650X, equal to 1000
times the NA. This rule of NA x 1000 is true of all achromatic objectives.
WORKING DISTANCE – the distance from the lens of the objective to the
cover slip on the slide, when the specimen is in focus.
USING YOUR SWIFT M7000 SERIES MICROSCOPE
Once you have learned the terminology and purpose of each component
of the microscope, use of the microscope is simple and enjoyable. By
following these easy steps, you will be able to begin studying the
specimen quickly and easily.
1. Open the specimen holder of the mechanical stage by pressing the
finger clip lever. Carefully place the slide against the stationary
side and back edge of the mechanical stage. Now slowly release the
finger clip lever allowing the specimen holder finger to hold the
slideinplace.
2. Align the specimen under the objective lens by using the adjustment
knobs under the mechanical stage. The bottom knob moves the slide
from right / left while the top knob adjusts the slide from front /
back. These knobs allow for precise movement and scanning of the
slide.
3. After securing the slide into position with the slide holder, turn the
power switch on. Rotate the nosepiece to place the lowest power
objective (4XD) into position over the specimen. Be sure the
objective “clicks” into position. The iris diaphragm should be
adjusted at this time to ¼ inch (5 mm) open.
If you have a Swift M7000 with a monocular head please omit steps 4 - 5.
4. For a binocular head, which has two eyepieces, the next step is to
adjust the interpupillary distance (I.D.) and diopter adjustment ring
of the binocular head. Set the interpupillary distance gauge and the
diopter adjusting ring (on the left eyetube) to “62”. Look through
both eyepieces with both eyes open to see whether you can
comfortably observe the specimen. If it is not comfortable for your

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eyes, then carefully and slowly slide the front plate of the binocular
head inwards or outwards until your eyes can see a single bright spot.
Read the I.D. gauge, and then rotate the diopter adjusting ring to set
it at the same number as the I.D. setting. Please note that binocular
heads are aligned at “62” at the factory, as it is the standard I.D. for
most people.
5. For additional optical correction of the binocular head, use the left
eye diopter adjustment to correct the differences between the
user’s eyes. Close your left eye and focus with your right eye only.
Now switch eyes. Using your left eye (close your right eye), adjust
the diopter ring until a clear image is seen. The binocular head is
now set for you to observe the specimen.
6. While viewing through the eyepiece, rotate the coarse focus knob
slowly and carefully to raise the stage and bring the specimen into
focus. The specimen may require some centering to the field of view
at this time. Now by using the fine focusing knob, slowly and
carefully refine the focus to clearly observe the fine details of the
specimen. Now you can turn the nosepiece to the higher
magnification objectives. The objectives are parfocalized so that
once the 4x objective is focused, only a slight turn of the fine focus
is required in changing to higher power objectives.
7. Please note that smaller apertures of the iris diaphragm increase
contrast in the image while large apertures decrease the contrast.
(The iris diaphragm is not intended for controlling the brightness of
the illumination). A good procedure to follow in selecting the proper
opening is to start with the largest and reduce it until the fine detail
of the specimen is in exact focus. Using an inappropriate aperture
results in a “washing out” of the image. Care must be exercised not
to reduce the aperture too much to gain high contrast, as then the
fine structure in the image of the specimen will be destroyed.
Reducing the aperture does increase contrast and depth of focus, but
it also reduces resolution and causes diffraction. The aperture for
the 10X objective will not be the same as for the 40XRD objective,
since the angle of the required light is determined by the numerical
aperture (N.A.) of the objective, the proper aperture of the iris
diaphragm must be selected. This can be easily achieved after
minimal experience with the microscope.

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8. When a dual view head is being used, please note that one side has a
“straight” eyetube and the other has a “diopter adjustable” eyetube
on the other. Focus the specimen using the straight eyetube first,
then focus the other eyetube by adjusting the diopter ring to obtain
the clearest image.
OIL IMMERSION
It is desirable to use immersion oil with the 100XRD objective. Using oil
slightly increases the resolution and brightness of the image being
viewed through the microscope. Drop a tiny amount of oil onto the slide
prior to focusing with the 100XRD objective (between the slide and the
objective tip). It is essential to thoroughly clean the objective tip after
use. Please contact Swift Optical or your authorized Swift dealer for the
appropriate immersion oil to use.
IMPORTANT: The focal distance of the 40XRD and 100XRD objectives
to the slide surface is very close and although the 40XRD objective on
the M7000 Series is sealed to prevent immersion oil contamination, it
is a good practice to avoid dragging the 40XRD objective through an
oiled slide.
PARTS AND ACCESSORIES
OCULAR HEAD REPLACEMENTS
MA11002 Monocular
MA11003 Binocular
MA11004 Trinocular
MA11013 Dual-view
EYEPIECE REPLACEMENTS
MA10512 W10XD, 18mm Eyepiece (single)
MA10513 W10XD, 18mm Eyepiece with pointer (single)

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OBJECTIVE REPLACEMENTS
MA10081 4XD Semi-Plan
MA10082 10XD Semi-Plan
MA10083 40XRD Semi-Plan
MA10084 100XRD Semi-Plan
MISC. ACCESSORIES
MA336 Dustcover
MA516A Diffusing filter (M7000D)
MA781 Halogen light bulb 12V, 20W (M7000D)
MA2215 LED 3.4V, .06W (M7000C)
MA14281 Power adapter (M7000C)
MA14283 Cord Holders (M7000D)
COMMON PROBLEMS IN MICROSCOPY
If you have a problem, you may be able to correct it yourself. Here are a
few common problems and easy solutions you may want to try before
calling for service.
WARNING – When working on the electrical systems, checking exposed
wires or replacing components, make sure to unplug the electrical
cord.
CAUTION – Never disassemble mechanical or optical components. This
servicing should only be done by an authorized Swift technician. The
Limited Lifetime Warranty will be null and void if the mechanical or
optical components are disassembled by a non-Swift dealer.
A. PROBLEM: No Illumination
CORRECTION:
1. Is the power plug connected to an active A.C. outlet?
2. Is the battery pack charged? (M7000C)
3. Is the on/off power switch working properly?
4. Check the bulb. Try a new bulb if you have one.
5. Check the contact points of the bulb and socket
B. PROBLEM: Illumination “hot spots” and uneven brightness in the
field of view.

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CORRECTION:
1. Is the swing-out diffusing filter closed over the iris diaphragm?
(M7000D)
2. Is the Abbe condenser in the correct position?
3. Is the nosepiece and objective in the click stop position?
C. PROBLEM: Image appears “washed out” or weak.
CORRECTION:
1. Slowly close the iris diaphragm.
2. Objective lens is dirty. See “Care and Cleaning” Section.
3. Eyepiece is dirty. See “Care and Cleaning” Section.
D. PROBLEM: Dust or hairs seem to be moving in the image.
CORRECTION: The iris diaphragm is not open wide enough. Slowly
open the iris diaphragm to increase the size of the opening allowing
for additional illumination.
E. PROBLEM: Focusing knobs turn with difficulty.
CORRECTION: The microscope should be disassembled, cleaned and
re-lubricated by a qualified, authorized technician.
CARE AND CLEANING
The M7000 Series microscope is designed to function with minimal
maintenance, but certain components should be cleaned frequently to
ensure ease of viewing. The power switch should also be turned off or
unplugged when the microscope is not in use.
CLEANING – The front lens of the objectives (particularly the 40XRD and
100XRD) should be cleaned after use. First brush with a soft, camel hair
brush or blow off with clean, oil free air to remove dust particles. Then
wipe gently with a soft lens tissue, moistened with optical cleaner
(eyeglass or camera lens) or clean water. Immediately dry with a clean
lens paper.
CAUTION - Objectives should never be disassembled by the user. If
repairs or internal cleaning should be necessary, this should only be done
by qualified, authorized microscope technician. The eyepiece(s) may be
cleaned in the same manner as the objectives, except in most cases
optical cleaner will not be required. In most instances breathing on the
eyepiece to moisten the lens and wiping dry with a clean lens tissue is
sufficient to clean the surface. Lenses should never be wiped while dry

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as this will surely scratch or otherwise mar the surface of the glass.
The finish of the microscope is hard epoxy and is resistant to acids and
reagents. Clean this surface with a damp cloth and mild detergent.
Periodically, the microscope should be disassembled, cleaned and
lubricated. This should only be done by a qualified, authorized
microscope technician.
DUST COVER AND STORAGE – All microscopes should be protected from
dust by a dust cover when in storage or not in use. A dust cover is the
most cost-effective microscope insurance you can buy. Ensure that the
storage space is tall enough to allow the microscope to be placed into
the cabinet or onto a shelf without making undue contact with the
eyepieces. Never store microscopes in cabinets containing chemicals,
which may corrode your microscope. Also, be sure that the objectives
are placed in the lowest possible position and the rotating head is turned
inward and not protruding from the base. Microscopes with mechanical
stages should be adjusted toward the center of the stage to prevent the
moveable arms of the mechanical stage from being damaged during
storage in the cabinet.
BULB REPLACEMENT
M7000C LED Illumination
The Swift M7000C base is equipped with a 3.4 volt, .06 watt illumination
system. The LED for this illumination system has approximately 100,000
hours of service. The time may vary depending on use and intensity. To
prolong the life of the LED, you should always turn off the unit when not
in use.
When purchasing replacement LEDs, it is important that you use only the
Swift approved LED (Swift # MA2215). This LED has been tested and
approved for life span, color temperature and brightness.
To replace an LED, you must first make sure the microscope is turned off.
Use the allen wrench (.09mm) that was included with the microscope to
loosen the set screws that hold the black plastic illuminator housing onto
the base of the microscope. Remove the illuminator housing to expose
the LED. Simply pull the LED straight up to remove it from the light
socket. Align the 2 metal socket pins with the holes at the bottom of the
new LED and push the LED onto the socket. Re-install the illuminator
housing.

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M7000D Halogen Illumination
The Swift M7000D base is equipped with a 12 volt, 20 watt illumination
system. The bulb for this illumination system is a Halogen type bulb with
approximately 200 hours of service. The time may vary depending on use,
intensity and brand of bulb used. To prolong the life of the bulb, you
should always turn off the unit when not in use and turn down the
dimmer switch when first turning the system on. This will prevent
unnecessary filament shock to the bulb resulting in a much longer life.
When purchasing replacement bulbs, it is important that you use only the
Swift approved bulb (Swift # MA781). This bulb has been tested and
approved for life span, color temperature and brightness.
NOTE: Use a piece of lens paper instead of your bare hand because
Halogen bulbs should never be handled. The oil from your hand will
contaminate the bulb’s glass envelope and cause it to fail almost
immediately.
To replace a bulb, you must first unplug the microscope. Remove the
eyepieces if they are not held in by screws and remove any slides on the
stage. Carefully turn the microscope on its side, unscrew and open the
illumination port. Make sure the bulb is cool and remove it by carefully
pulling the bulb out of its two prong socket. Insert the new bulb by
seating the bulb firmly into the socket. The bulb should not need further
alignment. Close the port door and secure firmly.