Swift M27LED Series User manual

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Swift M27LED Series
Stereo Microscope
Use and Care Manual
SWIFT OPTICAL
Enduring Quality and Technical Excellence

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SWIFT M27LED STEREO MICROSCOPE
The Swift M27LED Tri-Power Stereo Microscope is a stereoscopic
instrument that produces an erect, three-dimensional image with a
large, comfortable field of view. The M27LED incorporates features to
enhance and provide maximum versatility of the instrument for
classroom use. It is built to rigid optical and mechanical standards. The
scope is the result of the continuing progress of Swift Optical
Instruments, Inc. to provide a durable, modern instrument that meets
the requirements of heavy classroom use.
PICTURED M27LED

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FEATURES OF YOUR SWIFT M27LED TRI-POWER
STEREO MICROSCOPE
OPTICAL SYSTEM: Only the highest quality prisms are used in Swift
optical systems. All optical surfaces are hard coated to reduce
reflection and increase light transmission.
EYEPIECES: The M27LED Stereo Microscope comes with 10XD widefield
eyepieces. The interpupillary distance between these eyepieces can be
adjusted to the user’s preferred distance.
FOCUS CONTROLS: The focus knobs are located on both sides of the
microscope and may be used with either hand. The focus mechanism
incorporates stops to prevent the rack and pinion from disengaging at
either end of the focus range. When either limit is reached, the clutch
system will slip to prevent damage to mechanical parts.
ILLUMINATION: The top (incident) and bottom (trans-base) illuminators
are controlled by two on/off switches located on the base of the
microscope. The top illuminator is used for opaque specimens, while
the bottom illuminator effectively illuminates internal structures of
transparent specimens. Translucent specimens may be more accurately
studied if both illuminators are operated simultaneously.
Note that the entire stage plate is illuminated which prevents shadows
and more evenly exposes the specimen.
All wiring is tamper-proof. The three-wire, grounded system which
includes a molded plug is UL/CUL approval pending.
OBJECTIVES: The M27LED Tri-Power Stereo Microscope has three
different magnifications: 1X, 2X, 3X (model M27LED-123) or 1X, 2X, 4X
(model M27LED-124). All objectives are parfocal and parcentered.

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OPERATING YOUR SWIFT M27LED TRI-POWER STEREO
MICROSCOPE
1. Place the specimen on the stage plate.
2. Rotate the objective turret to the lowest magnification and move
the specimen in the field of view. Grasp the eyepiece tubes and
move them either closer together or farther apart, until you see
one field of view.
3. Rotate the focus knobs until the specimen image is in focus. (If
you cannot get the specimen in focus, you may have to use the
height adjustment knob to raise or lower the optics to alter the
working distance to the specimen).
4. Close your right eye and adjust the diopter ring on the left eyepiece
tube to bring the image in focus with your left eye. The optical
system is now adjusted to your particular vision.
5. Turn the turret to a higher power for increased magnification.
SERVICE
Always unplug the microscope from the power outlet while
performing service and maintenance on the microscope.
Your Swift M27LED Stereo Microscope is designed to function
satisfactorily with only ordinary maintenance. The instrument should be
periodically serviced by a qualified, authorized service technician who
will clean, re-lubricate and perform routine adjustments. Unauthorized
personnel should never disassemble lens assemblies or other precision
components. For information regarding service, contact your local Swift
authorized repair dealer, or call Swift customer service at (800) 523-
4544.
Replacement top LED illuminator (incident illuminator)-
Part # MA14773, 3.4V/0.3W
Replacement bottom LED illuminator (trans-illuminator)-
Part # MA14774, 3.4V/0.06W

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To change the top LED illuminator:
1. Unscrew the top illuminator housing cover that also holds the light
filter in place.
2. Remove the metal ring spacer and pull the LED bulb and round
circuit card assembly out of the illuminator housing.
3. Turn the LED/circuit card over and unplug the connector to separate
the wires from the assembly.
4. Reverse the previous steps to install the new LED bulb.
To change the bottom LED illuminator:
1. Push the stage clips to the side of the stage plate and remove the
stage plate that is covering the bottom illuminator.
2. Pull the LED bulb out of the bulb socket.
3. Insert the metal pins of the new bulb into the bulb socket.
4. Reverse the previous steps to install the new LED bulb.
Note: If the new bulb does not work after installation, the polarity of
the bulb may have been reversed when installing the new bulb. Simply
unplug the new bulb from the bulb socket and turn the bulb to insert
the bulb’s metal pins into the opposite bulb housing connections.
FOCUS TENSION ADJUSTMENT:
The focus tension adjustment is easily adjusted by using the C-Wrench
(Part MT202). This wrench fits the tension collar found on the focusing
control spindle, between the adjustment knob and body of the
microscope. A clockwise turn of this collar moves it toward the upright
support and increases tension, while a counter-clockwise turn moves
the collar toward the knob and decreases tension.

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CLEANING
Eyepieces should be cleaned as often as necessary to keep them in good
condition. Clean the eyepieces by brushing away the dirt particles, with
a soft camel-hair brush; then moisten the lens by breathing onto it.
Wipe the lens carefully with a quality lens cleaning tissue. If dirt or
other foreign matter still remains, it may be necessary to use a mild
solvent such as Windex. Note, the lens tissue should be moistened, not
saturated, with Windex for cleaning, which then the lens should be
dried with a lens tissue. Painted surfaces should be cleaned frequently
with mild detergent and a soft cloth.
TROUBLE SHOOTING
A. PROBLEM: The image does not stay in focus.
CORRECTION: Use Swift C-Wrench #MT202 to tighten the tension
collar found on the spindle of the focus controls.
B. PROBLEM: Inability to eliminate double image.
CORRECTION: Try to adjust the interpupillary distance of the
eyepieces. If the problem persists, the objective lenses may
need to be re-aligned. Please contact Swift or your local Swift
authorized repair dealer.
C. PROBLEM: The focus knobs slip at either upper or lower limits of
travel.
CORRECTION: This is normal. A unique slip-clutch is built in to
prevent damage to precision gears. This is activated at both the
upper or lower limits of travel.

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SPECIFICATIONS
Model # Objective M27LED-123 M27LED-124
Total Magnification
1X
10X
10X
2X 20X 20X
3X
30X
NA
4X NA 40X
Field of View 1X 20 mm 20 mm
2X
10 mm
10 mm
3X 6.7 mm NA
4X
NA
5 mm
Working Distance
1X
57 mm
48 mm
2X 57 mm 48 mm
3X
57 mm
NA
4X NA 48 mm
Depth of View 0.17 – 1.05mm 0.13 – 1.05mm
Dimensions: 10”(L) X 5”(W) X 12.5”(H)
Weight: 6.6 lbs
Illumination: Top (Incident) LED 3.4V/0.3W
Bottom (Trans-base) LED 3.4V/0.06W
PARTS AND ACCESSORIES
MA14773 LED Bulb for Top Light, 3.4V/0.3W
MA14774 LED Bulb for Bottom Light, 3.4V/0.06W
MA2609 W15X Eyepieces, (pair)
MA2610 W10X Eyepieces, (pair)
MA2615 Stage Clips, (pair)
MA2616 Eyeshields, (pair)
MA2620 Black & White Stage Plate
MA2621 Frosted Stage Plate

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SWIFT OPTICAL INSTRUMENTS, INC. LIMITED LIFETIME WARRANTY
Please see our website, www.swiftoptical.com, for complete warranty
details and exclusions.
Swift Optical Instruments, Inc.● [phone] ●
www.swiftoptical.com