Elenco Electronics EDU-37723 Manuale utente
D.I.Y. Microscope Kit
MODEL EDU-37723
ELENCO®
Copyright © 2015 by Elenco®Electronics, Inc. All rights reserved.
No part of this book shall be reproduced by any means; electronic, photocopying,
or otherwise without written permission from the publisher.
Instruction & Assembly Manual
EDU-37723_Manual_050115.qxp_Layout 1 6/22/15 3:14 PM Page 1
ARTS LIST
Contact ELENCO®if any parts are missing or damaged. DO NOT
contact your place of purchase as they will not be able to help you.
MAIN COM ONENTS
Qty. Description art #
r1 Lens Cover P1
r1 Eyepiece Lens P2
r1 Focusing Knob P3
r1 Revolving Turret P4
r1 Objective Lens P5
r1 Body Tube P6
r1 Arm P7
r1 Stage P8
r2 Clip P9
r1 Color Wheel P10
r1 Lamp Assembly P11
Mirror P11A
Screw 2.3 x 7.5mm Pan ead Black P11B
Case Top P11C
Case Bottom P11D
r1 Lamp Bracket P12
r1 Mounting Ball P13
r1 Base Assembly P14
HARDWARE
Qty. Description art #
r4 Screw 2.5 x 5.5mm Washer ead P15
r4 Screw 2.5 x 7.5mm Pan ead P16
r1 Screw 3 x 3.5mm Pan ead Black P17
r1 Screw 6 x 32mm Pan ead P18
r1 Locknut M6 P19
r1 Ball Bearing P20
r1 Spring P21
r1 U-Bracket P22
MISCELLANEOUS
Qty. Description art #
r2 Collecting Vial P23
r4 Slide P24
r1 Battery CR2032 P25
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EDU-37723_Manual_050115.qxp_Layout 1 6/22/15 3:14 PM Page 2
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ARTS IDENTIFICATION
Stage
Arm
Base Assembly
Color wheel
Eyepiece
Lens
Focusing Knob
Lamp Bracket
Lens Cover
Lamp Assembly
Mounting
Ball
Objective Lens
Revolving Turret
Clip
Body
Tube
Main Components
Hardware / Miscellaneous
U-Bracket
Spring
2.5 x 5.5mm
Washer ead
3 x 3.5mm
Pan ead Back
5.8 x 32mm
Truss ead
2.5 x 7.5mm
Pan ead
Ball
Bearing Button Cell
Locknut M6
Slide
Collecting
Vial
EDU-37723_Manual_050115.qxp_Layout 1 6/22/15 3:14 PM Page 3
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S ECIFICATIONS
Model: EDU-37723
100x-750x Zoom Microscope Set with Light & Projector
Features:
● 9" Microscope
● uygens Eyepiece 12x–18x
● 8x, 25x, 42x Objective Lenses
● Color Filters
● (4) Blank Slides
● (2) Collecting Vials
● Lens Cover
● Button Cell 3V
● Assembly Instruction
SAFETY RULES
● Read all the instructions before using and keep them for
reference.
● Store microscope set out of the reach of young children.
● Clean microscope after use.
● Wash hands after using.
● Keep food and drinks away from experimental area.
● Discard old battery.
● Clean the stage and lenses after use.
CAUTION FOR HANDLING
● old the microscope firmly by the stand only.
● Use sufficient care when handing the lens.
● Don’t let the microscope get too dirty.
● Always use the dust cover when not in use.
● Clean the lens using a clean lens tissue or soft cotton cloth. Do
not rub the lens with your finger or dirty cloth.
● Store microscope in a moisture-free location.
EDU-37723_Manual_050115.qxp_Layout 1 6/22/15 3:14 PM Page 4
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INTRODUCTION
In this world there is an abundance of living things. Some are
larger and easily seen with your own eyes but others are so minute
that millions could be placed on the head of a pin. These can only
be seen through microscope.
A magnifying glass is basically a simple microscope. When we talk
about a microscope, we’re referring to a “compound microscope”.
A compound microscope features two or more lenses connected
by a hollow cylinder.
The microscope was invented by Zacharias Janssen and his father
ans, a Dutch spectacle maker around the year 1590. They placed
lenses in a tube and discovered that the object near the end of the
tube appeared larger, larger than any simple magnifying glass.
Their first microscope was 18” inches long when fully extended. It
combined three long sliding tubes, two inches in diameter. When fully
closed it had a magnification of 3x, and 9x when fully extended. The
eyepiece lens was bi-convex and the objective lens was plano-convex.
This was a very advanced compound design for this time period.
Jansen’s microscope was an important advance from the
magnifying glass. By the end of the seventeenth century, further
developments, notably by Anton van Leeuwenhoek and Robert
ooke, allowed the observation of organisms such as fossils,
diatoms, as well as the first cells.
Today, magnifications greater than 1000x using modern
microscopes have been at the forefront of scientific development.
Your microscope will be a source of many hours of pleasure as a
hobby or open the door to advanced knowledge in the varied field
of science. We hope you enjoy your experience!
TOOLS REQUIRED
● #0 Phillips screwdriver
● #2 Phillips screwdriver
● Pliers
EDU-37723_Manual_050115.qxp_Layout 1 6/22/15 3:14 PM Page 5
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Eyepiece Lens: The lens at the top that you look through. The
magnification is 8x - 12x power.
Focusing Knob: You use it to move the objective lenses toward or away
from the specimen.
Body Tube: Connects the eyepiece to the objective lenses.
Revolving Turret: olds the three objective lenses and rotated to
change the power.
Objective Lenses: There are three objective lenses 8x, 25x, and 42x
powers. When coupled with a 12x or 18x eyepiece lens, we get a total of
the magnifications as listed:
96x (8 x 12) 144x (8 x 18)
300x (25 x 12) 450x (25 x 18)
504x (42 x 12) 756x (42 x 18)
Arm: Supports the tube and
connects it to the base
Clips: The two stage clips hold
the slides in place. The clips
move up and the slide is place
underneath
Stage: The flat platform is
where you place the slides.
Diaphragm or Iris: The
diaphragm is a rotating disc
mounted below the stage. It has
four different sized holes and
four colored holes. It is used to
vary the intensity and size of the
light that is projected upward
into the slide. The setting is a
function of the transparency of the specimen, the degree of contrast you
desire and the particular objective lens in use.
Mirror: Used to reflect light from an external light source up through the
bottom of the stage.
Illuminator Lamp: An LED (3V) light source used in place of a mirror.
Base: The bottom of the microscope, used for support.
Lens Cover: Protects the eyepiece lens from dust and debris.
ARTS OF THE MICROSCO E
1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
8
7
6
9
10
11
12
13
13
EDU-37723_Manual_050115.qxp_Layout 1 6/22/15 3:14 PM Page 6
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ASSEMBLY
1. Revolving Turret
rInsert the spring into the hole in the revolving turret as shown
in Figure 1.
r
Place the ball bearing on top of the spring as shown in Figure 1.
rCarefully attach the turret to the objective lens using a 2.5 x
5.5mm washer head screw (see Figure 2). Make sure the ball
bearing does not fall off the spring.
Check the assembly by rotating the lenses, making sure they
lock into the three positions (see Figure 2a).
Ball Bearing
Spring
Revolving Turret
Figure 1
Figure 2
2.5 x 5.5mm Washer ead Screw
Objective Lens
Figure 2a
EDU-37723_Manual_050115.qxp_Layout 1 6/22/15 3:14 PM Page 7
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2. Body Tube
Figure 3
Body tube
Arm
rSlide the body tube into the arm as shown in Figure 3.
rAttach the turret assembly onto the body tube as shown in
Figure 4 and make sure the holes line up.
r
Rotate the body tube and turret assembly 90º and screw together
with a 3 x 3.5mm pan head screw, as shown in Figure 5.
Figure 4 Figure 5
Turret
assembly
3 x 3.5mm
Pan ead
Black Screw
oles
Rotate
90º
rRotate the body tube back to its original position so the ridges
are visible in the opening (see Figure 6).
rPostion the focus knob on the arm so the gear is centered, as
shown in Figure 7.
rFasten the U-bracket across the two holes and attach using
two 2.5 x 7.5mm pan head screws.
Figure 6 Figure 7
2.5 x 7.5mm
Pan ead
Screws
U-bracket
Focus
knob
r
Check that the gear is meshed properly by turning the focus knob.
EDU-37723_Manual_050115.qxp_Layout 1 6/22/15 3:14 PM Page 8
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3. Stage
rPosition the stage so the bottom is facing up, as shown in
Figure 8. Place the color wheel onto the shaft with the flat side
up. Attach the wheel using the a 2.5 x 5.5mm washer head
screw. Check that the wheel rotates and locks into each
positions.
rMount the clips onto the square posts using 2.5 x 7.5mm pan
head screws, as shown in Figure 9.
Figure 8
2.5 x 5.5mm Washer
ead Screw
Color
wheel
Stage
Shaft
Figure 9
Clips
2.5 x 7.5mm
Pan ead
Screws
Square
post
rUsing two 2.5 x 5.5mm washer head screws, attach the stage
assembly onto the arm (see Figure 10).
Figure 10
2.5 x 5.5mm Washer
ead Screws
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4. Mirror/Light
rInstall the battery using the instructions on page 13.
rCheck the light by pressing the metal tab in. If it doesn’t light,
check the battery polarity.
rInstall the round mounting ball into the hole on the arm as
shown in Figure 11, pressing firmly in.
rSnap the lamp bracket onto the round mounting ball.
Caution: The round posts on the lamp assembly are not the
same size. The same is true for the holes in the lamp bracket.
rInstall the larger post into the side of the bracket with the larger
hole. Then, pull slightly on the lamp bracket, spreading it apart,
and slip the smaller post into the smaller bracket hole.
Figure 11
Mounting ball
Figure 12
Lamp assembly
Metal tab
Small postLarge post
Lamp bracket
Lamp bracket
(Front view)
Large tab up
EDU-37723_Manual_050115.qxp_Layout 1 6/22/15 3:14 PM Page 10
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