Swift S41-20 User manual

User Guide: the Swift S41-20 Stereo Microscope

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Welcome to your Swift S41-20 microscope! Whether you are a seasoned professional
or a beginner hobbyist, Swift has the perfect microscope for you.
This guide will introduce you to the components of your new microscope and help you
begin using it. For more information about our microscopes, software downloads,
product manuals, or customer service requests, please visit www.swiftoptical.com.
Table of Contents
I. Specifications 2
II. Parts of the microscope 3
III. Assembling the microscope 3
IV. Using the microscope 4
V. Maintenance and repair 4
VI. Troubleshooting 5
VII. Warranty information and customer support 7
VIII. Manual and software downloads 7

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I. Specifications
Model
S41-20
Observation tube
Binocular
Inclination
45°inclined
Interpupillary distance
55-75 mm
Eyepieces
WF10X, WF20X
Objective
1X
Total magnifications
10x, 20x
Working distance
230mm
Focusing
Focus travel range 41mm
Max. specimen
thickness
67mm
Stand
Single-arm stand, φ18mm vertical pillar, vertical pillar
height 280mm, stand dimension 187 x 132 x 56mm
Illumination
Two flexible gooseneck 1W LED lights
Power supply
110-240V

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II. Parts of the microscope
III. Assembling the microscope
The components for the S41-20 microscope are shipped detached for protection. Open
the styrofoam packing with care and do not leave any components attached to the
packing being removed. Do not discard any of the packing materials until all of the
components have been identified. Remove the plastic covers from the microscope's
head and the two gooseneck LED lights.
Assemble the stand connector and its supporting pillar on the vertical pillar, tightening
the fastening knobs. Attach the working arm to the stand connector, the focus block
connector to the microscope head, and then connect the working arm and focus block
connector via the focus block fixing knob.
Locate the power cord, attach it to the microscope, and then plug it in. Turn on the
power switch found on the back of the microscope stand.

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IV. Using the microscope
Interpupillary adjustment
Adjust the two eyepiece tubes until only one circular field can be seen through the two
eyepieces. If two separate circles appear, the interpupillary distance is too large; if two
overlapping circles appear, the interpupillary distance is too small. The eyepiece tube
allows a flexible adjustment of the interpupillary distance between 54 and 76mm.
Focusing the microscope
To focus the sample, use the focusing knobs located on both sides of the head holder.
By turning these knobs, the microscope can be moved up or down a certain distance.
This movement is enabled by a “rack and pinion” mechanism.
Using the focusing knob, focus the sample until the image is clear. If the sample cannot
be brought into focus within the travel range of the S303/S304 pole arm and stand,
adjust the microscope head height along the vertical pillar to a working distance of
230mm from the sample. Remember to tighten the locking screw and support collar
after adjusting the height of the microscope.
Magnification and working distance
Change the optional eyepieces to increase or decrease magnification range.
Total magnification used can be calculated by multiplying the eyepiece magnification by
the objective lens magnification.
Increasing the working surface
The two gooseneck lights on this S41-20 microscope are flexible and can be directed in
many directions as needed to maximize the surface area covered by the microscope.
Likewise, the working arm can swing a full 360°to cover larger surface areas.
Adjusting the tension of focusing knob
A spanner is included in the packaging of SL41-20 for the focusing knob tension
adjustment. If necessary, use the spanner to adjust the tension.

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V. Maintenance and repair
Cleaning
Keep all lenses clean. Fine dust on the surface of the lens should be gently blown off
with an air canister or wiped off with a soft lens cloth or lens tissue. Stubborn fingerprint
smudges or oil marks can be wiped off with lens tissue moistened with a small amount
of xylene or a 3:7 mixture of alcohol and ether. Never use organic solutions to clean any
other surface (especially the plastic surfaces). If necessary, please choose a mild
detergent.
Storage
After use, cover the microscope with the dust cover provided and store it in a dry and
clean place free from moisture to prevent rust. Remove the eyepieces when not in use,
and place covers on the eyepiece holders.
Repair
Do not attempt repairs on your own, particularly on the optical parts. Contact a Swift
Optical representative through our customer service email or phone line with any
issues.
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.

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Issue
Possible cause
Solution
Double images
Interpupillary distance is
not correct
Readjust the eyepieces
Diopter adjustment is not
correct
Readjust the diopter rings
Magnification of each
eyepiece is not the same
Mount eyepieces of the
same magnification
Dirt appears in the field
of view
Dirt on the specimen
Clean the specimen
Dirt on the surfaces of
eyepiece
Clean the surfaces
Image is blurry
Objective surfaces are
dirty
Clean the objective
Diopter adjustment is not
correct
Readjust the diopter
Focus is incorrect
Readjust the focus
The focusing knob is not
smooth
The focusing knob is too
tight
Loosen it to a suitable
position
Head keeps slipping
down
The focusing knob is too
loose
Tighten it to a suitable
position
Eyes fatigue easily
Diopter adjustment is not
correct
Adjust the diopter rings
Illumination does not
work when the switch is
on
No power supply
Check the connection
with the power supply

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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. Does not cover normal wear, routine
maintenance, add-on accessories, damage resulting from repair by unauthorized
parties, accident, alteration, shipping, misuse or abuse is not covered.
●One (1) Year Warranty for Electrical and Video components. Does not cover light
bulbs, batteries, fuses, or electrical cords.
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 customers living outside the United States, Swift Optical Instruments, Inc. will
provide standard warranty service. Both inbound and outbound shipping costs
(including duties and taxes) is the responsibility of the consumer.
For more information or to submit a repair request, please contact our Customer
Support department:
North America
Tel: [phone], option 1 (USA)
Email: [email protected]
Europe
Tel: [phone] (UK)
Email: [email protected]
*In order to serve Europe customers efficiently, we recommend to call the hotline during
working hours 8 AM –4 PM (London Time).
VIII. Manual and software downloads
Please visit www.swiftoptical.com for online download of instruction manuals and
relevant software (Manuals are downloadable in the product details page under “Swift
Basics” products and Software are downloadable under “Support” menu).

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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.
[phone]
www.swiftoptical.com