Swift M27LED Series Manuel utilisateur

Swift M27LED Series

Stereo Microscope

Use and Care Manual

SWIFT OPTICAL

Enduring Quality and Technical Excellence

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

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.

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

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.

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.

SPECIFICATIONS

Model # Objective M27LED-123 M27LED-124

Total Magnification

10X

2X 20X 20X

30X

4X NA 40X

Field of View 1X 20 mm 20 mm

10 mm

3X 6.7 mm NA

5 mm

Working Distance

57 mm

48 mm

2X 57 mm 48 mm

57 mm

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

SWIFT OPTICAL INSTRUMENTS, INC. LIMITED LIFETIME WARRANTY

Please see our website, www.swiftoptical.com, for complete warranty

details and exclusions.

Swift Optical Instruments, Inc.● (877) 967-9438 ●

www.swiftoptical.com

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