AmScope HL250-A Series User manual

HL250
-
A
Series
1
User’s Manual

2
HL250
-
A
Series
T
abl
e
o
f
Contents
Before Use..........................................................................................3
Introduction ............................................................................................................. 3
Safety Precautions ................................................................................................... 4
Parts .............................................................................................. 5
HL250-A .......................................................................................................... 5
HL250-AY ........................................................................................................ 6
HL250-AS ........................................................................................................... 7
HL250-AR .......................................................................................................
Definition of Parts ............................................................................................... 9
Getting Started .......................................................................... 11
Assembly ................................................................................................................ 11
Changing the Bulb ............................................................................................. 11
Maintenance/Precautions ..................................................................................... 12

3
HL250
-
A
Series
Before
Use
Introduction
Congratulations on the purchase of your new AmScope microscope!
This manual is designed for the HL250-A and all packages including (HL250-AY, HL250-AR,
HL250-OYS).
Please take a few minutes to familiarize yourself with the features and functions of your new mi-
croscope.
If you’d like more information on microscopes, parts, or accessories, please visit our website at:
www.iScopeCorp.com
We highly recommend you study this manual thoroughly before operating the microscope and
that you keep it on hand for future reference.
If you have additional questions or need assistance, please send us an email at:
[e-mail]

4
HL250
-
A
Series
Before
Use
Safety Precautions
1. As the illuminator is a precision instrument, always handle it with care, avoiding impact
or abrupt movement during transportation. Do not shake the package.
2. Do not place the microscope in direct sunlight or in high heat. Keep it indoors in a dry
and clean place with temperatures between 32-100 degrees F (0-40 degrees C), and in
maximum relative humidity of 85%.
3. Avoid touching the lenses so that oil and dirt from your fingerprints do not obstruct
your view.
4. Before turning the power on, make sure that the power supply voltage is consistent with
the voltage of your illuminator.

5
HL250
-
A
Series
Parts
HL250-A
Screw to Change Bulb
2 Step Attachment for
Goosenecks/RingLights
Cooling Fan
Intensity Knob Fuses
Power Switch
Power Plug Socket

6
HL250
-
A
Series
Parts
HL250-AY
Dual Gooseneck
Attachment
Screw to Change Bulb
Intensity Knob
Intensity Control
Power Switch

7
HL250
-
A
Series
Parts
HL250-AS
Single Gooseneck
Attachment
Screw to Change Bulb
Intensity Knob
Power Switch

8
HL250
-
A
Series
Parts
HL250-AR
Screw to Change Bulb
2 Step Attachment for
Goosenecks/RingLights
Intensity Knob
Power Switch
Power Plug Socket

9
HL250
-
A
Series
Parts
Definition of Parts
Adjustable Trinocular Port
Threaded port with adjustable length of attachment of digital or video camera
Boom Stand
Stand for the microscope that allows the head to be moved in physical space in various directions
Coaxial Light
A light source designed to be emitted from the objective of the microscope, typically meant to view down
holes or other special applications.
Continuous Zoom
A microscope head with a knob to change magnification through a range
Dimmer
Controls the amount of light that escapes from the illumination source
Diopter
Allows the focus to be perfected for both eyes, independent of each other
Fixed Power
Microscope head whose objectives are pre-set at certain levels and changed by rotating the objective
Focusing Knob
Used to move the microscope head vertically to bring the sample into focus
Gooseneck Illuminator
Illuminator independent of the unit that allows movement of one or two necks for controlled lighting
ead Lock Screw
Screws the microscope head into place

HL250
-
A
Series
Parts
10
Magnification Knob
Changes the magnification of the lenses on a continuous zoom microscope
Microscope ead
Contains the objective lens, eyepiece ocular tubes, and prisms used to magnify
Ocular Tube
Tube designed to hold the eyepieces or camera in place
Ring Light
An illuminator that mounts directly onto the objective to emit even light on the sample below
Simul-Focal Microscope ead
Head containing a focus adjustment for a trinocular port camera to simultaneously to match the eyepieces
Table Stand
A stand which sits on the table and holds the head directly above the sample without moving

HL250
-
A
Series
Getting
Started
11
Assembly
1. First, take the styrofoam container out of the cardboard carton and lay it on its side, paying attention to which
side is labeled up. Remove the tape and open the container carefully so as to avoid dropping and damaging the
optical items. Check carefully to ensure that all parts and accessories are intact.
2. Check the packing list to ensure that you’re received all items. Please note that this can vary depending on
which model you’ve purchased, and is generally listed on www.amscope.com at the items’ details page for your
specific model.
3. Remove the illuminator from the box. Assembly for these units is quite simple--begin by attaching the illumi-
nator attachment to the 2-step connector. This will be either your single gooseneck, dual gooseneck, or ring light
attachment.
4. Attach the power cable from the unit to the wall.
5. Before powering on, ensure that you are using a 110v power source into a 110v unit. If using 220v, be sure to
use a step down transformer for the safety of your unit and bulb.
6. Attach the ring light to the included adapter for your stereo microscope. This adapter screws onto the objective
lens or onto the end of any Barlow lenses currently in use (for -AR models only).
Changing the Bulb
1. Ensure that the unit has been turned off and allowed to cool off before attempting to change the bulb to avoid
burns or damage.
2. Remove the top panel to reveal the bulb. There is a screw on the top of the box locking the panel into place
that must be removed.
3. Once open, remove the white plastic socket (with two white wires protruding from it) from the bulb. It simply
slides off.
4. There are two metal pins that secure the bulb into place. They do NOT need to be removed. To pull the bulb
out, simply tilt the bulb back by pushing down near where the prongs meet the socket that was removed. Do not
push on the prongs, but the bulb itself. The bulb will then push the pins to the side, allowing you to pull the bulb
out vertically.
5. Reverse the above steps to reinstall the bulb and door.

12
HL250
-
A
Series
Operation
Maintenance/Precautions
- All glass surfaces must be kept clean. Fine dust on the optical surface should be blown off using a hand blower or
gently wiped off with a soft lens paper tissue/nonabrasive lint free cloth.
- Carefully wipe off oil or fingerprints on the lens surfaces using tissue moistened with a small amount of lens
cleaner (we recommend Sparkle brand optical cleaner).
- Do not use Sparkle to clean other elements of the microscope. Use a neutral detergent on any plastic or painted
surfaces.
- Do not assemble or disassemble the microscope’s electrical components yourself without advisement from one of
our technicians. Doing so will void your warranty unless by advisement of one of our technicians to do so.
- After use, cover the microscope with the provided dust cover.
- Keep your AmScope microscope in a dry, clean location in order to prevent rust or other damages.