Swift SW350B Manuel utilisateur

User Guide: SW350B

Welcome to your Swift SW350B microscope! Whether you are a seasoned professional 
or a beginner hobbyist, Swift has the perfect microscope for you.  
 
This quick-start guide will introduce you to the components of your new microscope and 
help you begin to use it. For more information about our microscopes or customer 
service requests, please visit www.swiftoptical.com. 
 
 
Table of Contents 
 
I. Specifications 2 
II. Parts of the microscope 3 
III. Assembly and set up 3 
IV. Using the microscope 3 
V. Caring for your microscope 5 
VI. Troubleshooting 5 
VII. Warranty information and customer support 7 
 
   
1 

I. Specifications

Model

SW350B

Head

360° rotatable Binocular Siedentopf

Inclination

30°

Eyepieces

Wide-field 10X and 25X pairs

Interpupillary distance

48-75mm

Diopter adjustment

On left tube, +/-5dp

Nosepiece

Quadruple revolving

Objectives

Achromatic

4X, NA 0.1, working distance 37.5mm

10X, NA 0.25, working distance 7.35mm

40X(Spring), NA 0.65, working distance 0.29mm

100X (Spring, Oil), NA 1.25, working distance 0.18mm

Magnifications

40X, 100X, 250X, 400X, 1000X and 2500X

Stage

Double-layered mechanical stage with slide holder

Stage size

130mmx130mm

Stage X-Y range

70mmx30mm

Upper limit stop

Rack stop preset but adjustable

Condenser

NA 1.25 with iris diaphragm

Focusing

Coaxial coarse and fine focusing system

Illumination

Built-in 1W LED transmitted illumination with intensity control

Power

110-240V AC adapter (included)

II. Parts of the microscope

III. Assembly and set up

Carefully remove the microscope from the box and set it on a sturdy, flat surface.

Remove the plastic covers from the eyepiece holders on the microscope's head, then

place eyepieces into the holders. Locate the power adapter and attach it to the

microscope, then plug it in. Turn the microscope on by pressing the power button on the

back of the base.

IV. Using the microscope

Turn the microscope on and use the illumination intensity control wheel to set the lamp

on the lowest brightness setting.

Clip a slide into the slide holder on the stage. Use the X-Y translational control knobs on

the right side of the stage to move the stage front to back or the slide holder left to right

to center the specimen over the bulb.

Move the eyepieces closer together or further apart until you see one image when you

look through them. Adjust the bulb brightness to a comfortable intensity with the dimmer

wheel.

Always start with the lowest power objective lens, in this case the 4X objective, centered

over the stage. Look through the eyepieces and bring the image into focus by slowly

turning the larger coarse adjustment focus knob to bring the stage closer to the

objective. Once an image forms, switch to the blue fine adjustment focus knob to

fine-tune for clarity or to see the various layers of the specimen you are examining. You

may also use the diopter adjustment control on the eyepiece holder at this time to

further fine-tune image clarity. Look at other parts of the slide by using the X-Y

translational control knobs to move the slide holder once the specimen is in focus.

Increase magnification by rotating the nosepiece clockwise to a higher magnification

objective, taking care not to strike the slide with the objective, as doing so may damage

the glass on the slide, the objective, or both. If you cannot move the objective into place

without making contact with the slide, use the coarse focus knob to move the stage

down and away to make room before changing magnification.

Adjust the focusing ring on the iris aperture diaphragm to change the resolution of the

image. The condenser can be manually moved closer to or farther from the stage by

rotating the metal knob.

For best results with the 100X objective, use the included immersion oil. Rotate the

nosepiece so that the 100X objective is near, but not on the specimen slide. Then place

a drop of the included immersion oil onto the cover slip. Slowly rotate the 100X objective

into place so that it comes into contact with the immersion oil. Adjust focus until your

specimen comes clearly into view. (Note: Immediately after use, always gently wipe the

oil off of the objective lens and the cover slip with lens paper moistened with a small

amount of ethyl or isopropyl alcohol. Do not use immersion oil with the 4X, 10X, or 40X

objectives.)

V. Caring for your microscope

As with any quality instrument, your microscope should be stored in a cool, dry place.

Use the dust cover to protect the microscope when not in use. If necessary, clean the

lenses with a soft brush or compressed air to gently remove dust.

Avoid touching the optical surfaces directly and never disassemble the optical

components of the microscope. When not using eyepieces, use the plastic covers to

protect the eyepiece lens holders and ocular lens.

VI. Troubleshooting

If you have a problem, you may be able to correct it yourself. Here are some common

issues and easy solutions you can try before calling customer support for service.

*Caution: Never disassemble the electrical, mechanical, or optical components. This

servicing should only be done by a Swift technician.

Issue

Possible cause

Solution

Visual field is uneven, or

image is dark at the edges

Nosepiece is not locked in

place to center the

objective lens

Turn nosepiece until you

hear a click to center the

objective lens

Slide is not centered over

the bulb, leaving part of the

specimen unilluminated

Center the slide over the

bulb with the X-Y

translational control knobs

Dirty objective or eyepiece

lens

Clean with compressed air

or soft brush

Iris aperture is closed too

far

Open the iris aperture

wider

Visual field is blurry or dirty

Dirty objective or eyepiece

lens

Clean with compressed air

or soft brush

The slide is dirty

Clean the slide with glass

cleaner

Eyepiece or objective lens

not fully screwed into place

Tighten eyepiece or

objective lenses

Poor image quality

No cover slip on the

specimen

Place glass cover slip over

the specimen

Slide is too thick or too thin

Use a lab-quality slide

Slide is placed upside

down on the stage

Flip the slide over so that

the cover slip is facing up

Oil on objective lens

Wipe the lens off with soft

cloth and glass cleaner

Iris aperture is too narrow

or too wide

Adjust the iris aperture

Image moves while

adjusting focus

Slide is shifting on the

stage

Reposition slide more

securely in the slide holder

Light is too dim

Iris aperture is closed too

far

Open the iris aperture

wider

Bulb setting is too low

Increase intensity on the

control wheel

Condenser lens is dirty

Wipe the condenser lens

off with a soft cloth

Voltage is too low

Use the supplied power

adapter

Objective lens collides with

the slide when switching

from a lower to a higher

power objective

Slide is upside down or too

thick

Use a lab-quality slide or

flip the slide over so the

cover slip is facing up

Stage is set too close to

the objectives

Lower the stage with the

coarse focus knob

Safety rack stop needs

adjustment

Adjust the safety rack stop

to stop the stage farther

from the objectives

Image won't come into

focus when using a

higher-powered objective

Slide is upside down

Flip the slide over so the

cover slip is facing up

Slide is not moving when

using the X-Y translational

control knob

Slide has come unclipped

from the holder

Reposition slide in the

holder and secure with clip

Lamp does not turn on

No power source

Check that the adapter is

fully connected or that

batteries are installed

Bulb has burned out

Replace the bulb

Lamp flickers while on

Bulb is not inserted into the

socket correctly

Check to make sure the

bulb is fully screwed into

the socket

Power adapter is not fully

plugged in

Check to make sure that

the adapter is fully

connected to wall socket

and to the microscope

VII. Warranty information and customer support

Our microscopes are manufactured to meet ISO 9001 standards. Swift warranties are

as follows:

● Five (5) Year Warranty for Microscopes: Microscopes come with a five (5) year

warranty against manufacturing defects

● One (1) Year Warranty for Accessories: Microscope accessories such as

eyepiece cameras, dust covers, power supply cords, etc., come with a one (1)

year warranty

All warranties start from the original date of purchase. Swift provides the repair or

replacement of warrantied parts for free, including labor, during the warranty period.

Proof of original purchase is required. Buyers are responsible for shipping to and from

our warehouse for warranty services. The warranty does not cover damages resulting

from normal wear and tear, abuse, or unauthorized repairs.

For more information or to submit a repair request, please contact our Customer

Support department:

Tel: 877-967-9438, option 1

Email: [email protected]

Disclaimer: We are constantly working to improve our instruments and to adapt them in

response to customer feedback. These improvements occasionally involve small

modifications to the mechanical structure and optical design of our microscopes.

Therefore, some descriptions, illustrations, and specifications in this instruction manual

may vary slightly from the microscope you receive.

Swift Optical Instruments, Inc.

(877) 967-9438

www.swiftoptical.com

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