MANUAL
EXC-120
MICROSCOPE SERIES
73 Mall Drive, Commack, NY 11725 • 631-864-1000 (P) • 631-543-8900 (F)
www.accu-scope.com • info@accu-scope.com
EXC-120 MICROSCOPE SERIES
CONTENTS
SAFETY NOTES .................................................................................................................. 2
CARE AND MAINTENANCE ................................................................................................ 2
INTRODUCTION .................................................................................................................. 3
UNPACKING AND COMPONENTS ..................................................................................... 3
COMPONENTS DIAGRAMS ............................................................................................. 4-5
ASSEMBLY DIAGRAM ........................................................................................................ 6
DETAILED ASSEMBLY ..................................................................................................... 7-9
ADJUSTMENT & OPERATION
ILLUMINATION ............................................................................................................... 10
SPECIMEN SLIDE ........................................................................................................... 10
STAGE ........................................................................................................................... 10
FOCUSING ..................................................................................................................... 11
CONDENSER .......................................................................................................... 11-12
INTERPUPILLARY DISTANCE ..................................................................................... 12
TENSION ...................................................................................................................... 13
FUSE REPLACEMENT ................................................................................................. 14
TROUBLESHOOTING................................................................................................... 15-17
MAINTENANCE.................................................................................................................. 18
SERVICE ............................................................................................................................ 18
WARRANTY ....................................................................................................................... 18
ACCU-SCOPE®
73 Mall Drive, Commack, NY 11725 • 631-864-1000 • www.accu-scope.com
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EXC-120 MICROSCOPE SERIES
SAFETY NOTES
1. Open the shipping carton carefully to prevent any accessory, i.e. objectives or eyepieces, from
dropping and being damaged.
2. Do not discard the molded Styrofoam container; the container should be retained should the
microscope ever require reshipment.
3. Keep the instrument out of direct sunlight, high temperature or humidity, and dusty environments.
Ensure the microscope is located on a smooth, level and firm surface.
4. If any specimen solutions or other liquids splash onto the stage, objective or any other component,
disconnect the power cord immediately and wipe up the spillage. Otherwise, the instrument may be
damaged.
5. All electrical connectors (power cord) should be inserted into an electrical surge suppressor to
prevent damage due to voltage fluctuations.
6. For safety when replacing the LED bulb or fuse, be sure the main switch is off (“O”), remove the
power cord, and replace the LED bulb after the bulb and the lamp house has completely cooled.
7. Confirm that the input voltage indicated on your microscope corresponds to your line voltage. The
use of a different input voltage other than indicated will cause severe damage to the microscope.
CARE AND MAINTENANCE
1. Do not attempt to disassemble any component including eyepieces, objectives or focusing assembly.
2. Keep the instrument clean; remove dirt and debris regularly. Accumulated dirt on metal surfaces
should be cleaned with a damp cloth. More persistent dirt should be removed using a mild soap
solution. Do not use organic solvents for cleansing.
3. The outer surface of the optics should be inspected and cleaned periodically using an air stream from
an air bulb. If dirt remains on the optical surface, use a soft cloth or cotton swab dampened with a
lens cleaning solution (available at camera stores). All optical lenses should be swabbed using a
circular motion. A small amount of absorbent cotton wound on the end of a tapered stick such as
cotton swabs or Q-tips, makes a useful tool for cleaning recessed optical surfaces. Avoid using an
excessive amount of solvents as this may cause problems with optical coatings or cemented optics
or the flowing solvent may pick up grease making cleaning more difficult. Oil immersion objectives
should be cleaned immediately after use by removing the oil with lens tissue or a clean, soft cloth.
4. Store the instrument in a cool, dry environment. Cover the microscope with the dust cover when not
in use.
5. ACCU-SCOPE® microscopes are precision instruments which require periodic preventative
maintenance to maintain proper performance and to compensate for normal wear. An annual
schedule of preventative maintenance by qualified personnel is highly recommended. Your
authorized ACCU-SCOPE ® distributor can arrange for this service.
ACCU-SCOPE®
73 Mall Drive, Commack, NY 11725 • 631-864-1000 • www.accu-scope.com
2
EXC-120 MICROSCOPE SERIES
INTRODUCTION
Congratulations on the purchase of your new ACCU-SCOPE ® microscope. ACCU-SCOPE ®
microscopes are engineered and manufactured to the highest quality standards. Your microscope will
last a lifetime if used and maintained properly. ACCU-SCOPE ® microscopes are carefully assembled,
inspected and tested by our staff of trained technicians in our New York facility. Careful quality control
procedures ensure each microscope is of the highest quality prior to shipment.
UNPACKING AND COMPONENTS
Your microscope arrived packed in a molded Styrofoam container. Do not discard the container: the
Styrofoam container should be retained for reshipment of your microscope if needed. Avoid placing the
microscope in dusty surroundings or in high temperature or humid areas as mold and mildew will form.
Carefully remove the microscope from the Styrofoam container by its arm and base and place the
microscope on a flat, vibration-free surface.
ACCU-SCOPE®
73 Mall Drive, Commack, NY 11725 • 631-864-1000 • www.accu-scope.com
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EXC-120 MICROSCOPE SERIES
COMPONENTS DIAGRAM
Binocular Head
Eyepiece
Nosepiece
Y Axis
Adjustment Knob
Objective
Stage
X Axis
Adjustment Knob
Condenser
Fine Focusing
Knob
& Filter Holder
Illuminator
Coarse
Tension
Focusing
Adjustment
Collar
ACCU-SCOPE®
Power
Switch
Knob
73 Mall Drive, Commack, NY 11725 • 631-864-1000 • www.accu-scope.com
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EXC-120 MICROSCOPE SERIES
COMPONENTS DIAGRAM
Interpupillary Distance
Indicator
Condenser
Adjustment Knob
Specimen Holder
Illuminator Adjustment Dial
ACCU-SCOPE®
73 Mall Drive, Commack, NY 11725 • 631-864-1000 • www.accu-scope.com
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EXC-120 MICROSCOPE SERIES
ASSEMBLY DIAGRAM
The diagram below shows how to assemble the various modules. The numbers indicate the order of
assembly. Your microscope was preassembled by our factory technicians at our New York facility prior
to shipment. Should you need to disassemble/assemble your microscope in the future, please follow the
instructions outlined below.
When assembling the microscope, make sure that all parts are free of dust and dirt, and avoid scratching
any parts or touching glass surfaces.
Eyepieces
②
Binocular
Viewing Head
③
①
Objectives
④
④
Main Body
Power Cord
ACCU-SCOPE®
73 Mall Drive, Commack, NY 11725 • 631-864-1000 • www.accu-scope.com
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EXC-120 MICROSCOPE SERIES
DETAILED ASSEMBLY
Installing the Binocular Viewing Head
(Fig. 1 & 2)
②
Loosen the thumb screw ①.
①
③
Position the viewing head ② above the dovetail opening
③ as shown and set it into place with the two eyepiece
tubes facing forward as shown (Fig. 2).
Retighten the thumb screw ①.
Fig. 1
Installing the Eyepieces
(Fig. 3 & 4)
Carefully remove the eyepieces ① from the protective
packaging – be sure not to touch any optical (glass)
surfaces. Remove the dust caps from the ends of the
eyepiece tubes ②.
Insert an eyepiece ① into one of the eyepiece tubes ②
and gently twist and push the eyepiece in until it is flush
with the top surface of the eyepiece tube.
Fig. 2
Lock the eyepiece into place by tightening the lock screw
(small hex screw) on the eyetube.
Repeat above for the other eyepiece.
②
①
Fig. 3
ACCU-SCOPE®
Fig. 4
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EXC-120 MICROSCOPE SERIES
DETAILED ASSEMBLY
(continued)
Installing the Objectives
(Fig. 5 & 6)
Rotate the coarse focusing knob ① counterclockwise to
lower the stage to its lowest position.
①
Fig. 5
Install each objective ② into the nosepiece ③ from the
lowest magnification to the highest in a clockwise direction
beginning with the first empty objective receptacle in front.
Install each objective by using two hands to position and
gently screw in the objective in a clockwise direction into
the threads of the nosepiece receptacle.
NOTE: Never force any objectives onto the threads of the
nosepiece, and do not over-tighten.
②
③
Fig. 6
Installing the Filters
(Fig. 7)
To install a filter, swing out the filter holder ① located
below the condenser ② by sliding it to the left using the
vertical handle ③ on the filter holder.
②
④
Place the filter ④ into the top of the holder.
③
①
Swing the filter holder ③ back into place under the
condenser.
Fig. 7
ACCU-SCOPE®
73 Mall Drive, Commack, NY 11725 • 631-864-1000 • www.accu-scope.com
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EXC-120 MICROSCOPE SERIES
DETAILED ASSEMBLY
(continued)
Installing the Power Cord - (Fig. 8-9)
Fig. 5
Make sure the power switch ① is off (O).
Align and plug the female end ② of the power cord into
the power cord socket ③ on the back of the microscope.
Plug the other end into a grounded (3-prong) outlet.
②
①
NOTE: Always use the power cord that is provided with
your microscope; using a different power cord may
damage your microscope. Should you need a
replacement, contact your authorized ACCU-SCOPE
dealer or call ACCU-SCOPE at 1-631-864-1000 for a
dealer nearest you.
Fig. 8
③
Fig. 9
ACCU-SCOPE®
73 Mall Drive, Commack, NY 11725 • 631-864-1000 • www.accu-scope.com
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EXC-120 MICROSCOPE SERIES
ADJUSTMENT & OPERATION
Illumination - (Fig. 10-11)
Turn the power switch to On (I) to turn on the transmitted
light ①.
Adjust the brightness by turning the Illuminator Adjustment
Dial ②.
①
Placing A Specimen - (Fig. 11-12)
To avoid the objective touching the specimen, lower the
stage to its lowest position by turning the coarse
adjustment knob ③ counter-clockwise.
Fig. 10
Push the left side of the specimen holder ④ on the top of
the stage plate to open the holder. Place your slide into
the specimen holder and release the holder to allow it to
close firmly against the slide.
Adjusting the Stage - (Fig. 12)
③
②
Fig. 11
The stage has a coaxial X-Y Stage Movement Knob ⑤
which allows you to move your specimen in any direction:
top knob - forward/back (Y), and bottom knob - left/right
(X).
④
⑤
Fig. 12
ACCU-SCOPE®
73 Mall Drive, Commack, NY 11725 • 631-864-1000 • www.accu-scope.com
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EXC-120 MICROSCOPE SERIES
ADJUSTMENT & OPERATION (continued)
Focusing - (Fig. 13)
Set the left diopter collar ① to “0”.
①
Using your left eye only and the 10X objective, focus your
specimen by adjusting the coarse focusing adjustment
knob ②.
When the image is in view, refine the image to its sharpest
focus by turning the fine focusing adjustment knob ③.
②
Rotate the diopter collar ① to obtain the sharpest focus.
The diopter range is + or – 5. The number aligned to the
white dot on the viewing head is the diopter in use.
③
NOTE: do not counter rotate the focusing knob as this will
damage to the focusing system.
Fig. 13
Adjusting the Condenser - (Fig. 14)
①
②
The condenser was installed and centered in our factory by
our technicians prior to delivery. If the condenser needs to
be re-installed or adjusted in the future, follow the
instructions on page 13.
To adjust the condenser, turn the condenser focusing
knob ① to raise or lower the condenser ②.
Fig. 14
Raise the condenser when using the highest magnification
objective, and lower it when using the low magnification
objective.
Focus the specimen with the 10x objective.
Adjust the condenser focusing knob ① to get a clear
image of the field iris diaphragm.
ACCU-SCOPE®
73 Mall Drive, Commack, NY 11725 • 631-864-1000 • www.accu-scope.com
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EXC-120 MICROSCOPE SERIES
ADJUSTMENT & OPERATION (continued)
Re-installing or Centering
The Condenser - (Fig. 15)
①
②
③
The condenser was installed and centered by our
technicians prior to delivery. If the condenser needs to be
re-installed or adjusted in the future, rotate the coarse
focusing knob ① to raise the stage to the highest position
(see Fig. 1).
Rotate the condenser focusing knob ② to lower the
bracket of condenser to the suitable position.
Fully loosen the condenser lock-screw ③.
Fig. 15
Insert the condenser into the hole of the stand, until the
condenser is even with the stand.
Tighten the lock-screw ③ of the condenser, then raise the
condenser with condenser focusing knob to the highest
position.
①
②
Adjusting the Interpupillary Distance (Fig. 16)
To adjust the interpupillary distance, hold the left and right
eyetubes while observing a specimen.
Fig. 16
Rotate the eyetubes ① up or down as shown by arrows on
the central axis ② until the fields of view of both eyetubes
coincide completely. A complete circle should be seen in
the viewing field when viewing the specimen slide. An
improper adjustment will cause operator fatigue and will
disrupt the objective parfocality.
Where “·” on the eyetube ① lines up, then that is the
number for the interpupillary distance.
Range:48~75mm (binocular models)
55~75mm (trinocular models)
Remember your interpupillary for future operation.
ACCU-SCOPE®
73 Mall Drive, Commack, NY 11725 • 631-864-1000 • www.accu-scope.com
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EXC-120 MICROSCOPE SERIES
ADJUSTMENT & OPERATION (continued)
Adjusting the Tension - (Fig. 17)
If the handle is very heavy when focusing, the specimen
leaves the focus plane after focusing, or the stage lowers
by itself, adjust the tension adjustment collar ①.
①
Fig. 17
Located on the right side of the stand between the coarse
adjustment knob and the vertical arm is an adjustable
tension adjustment collar that is preset at our facility. This
allows the user to adjust the coarse control tension to their
individual preference.
To increase tension, turn the tension adjustment collar
counterclockwise to tighten; turn clockwise to loosen the
tension.
ACCU-SCOPE®
73 Mall Drive, Commack, NY 11725 • 631-864-1000 • www.accu-scope.com
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EXC-120 MICROSCOPE SERIES
ADJUSTMENT & OPERATION (continued)
Replacing the Fuse - (Fig. 18-22)
Before replacing a fuse, turn the power switch ① to “O”
(Off), and unplug the power cord from the outlet and the
microscope.
①
Fig. 18
The fuse holder is located on the back of the microscope
next to the power cord receptacle.
Insert a flat head ( — ) screwdriver into the notch on the
fuse holder. (Fig. 19)
Carefully slide fuse holder up from the fuse socket and
remove the holder (Fig. 20).
Carefully remove a fuse from the fuse holder by tilting out
as shown (Fig. 21) and replace with a new one – also tilting
it as you slide it in – it will click into place.
Fig. 19
Reinstall the fuse holder into the fuse socket by sliding it in
until it clicks back into place (Fig. 22).
Plug the power cord into the base of the microscope and
then into a wall outlet.
Turn the power switch to “ I ” (On).
NOTE: Replace the fuses with 0.5 amp fuses. Using any
other fuse type may result in diminished illumination and
may cause damage to your microscope.
Specification of the fuse: 250V, 0.5A.
Fig. 20
Fig. 21
ACCU-SCOPE®
CAT # 3277
Fig. 22
73 Mall Drive, Commack, NY 11725 • 631-864-1000 • www.accu-scope.com
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EXC-120 MICROSCOPE SERIES
TROUBLESHOOTING
Under certain conditions, performance of this unit may be adversely affected by factors other than defects. If a
problem occurs, please review the following list and take remedial action as needed. If you cannot solve the
problem after checking the entire list, please contact your local dealer for assistance.
OPTICAL
Problem
Cause
Corrective Measure
Darkness at the periphery or
uneven brightness of view field
Revolving nosepiece not in
click stop position
Turn the nosepiece to click
stop position so the objective is
seated correctly in the optical
path
Dirt or dust on the view field
Dirt or dust on the lens eyepiece, condenser, objective,
collector lens or specimen
Clean the lens
Poor image quality
No cover glass attached to the
slide
Attach a 0.17mm cover glass
Cover glass is too thick or thin
Use a cover glass of the
appropriate thickness
(0.17mm)
Slide maybe upside down
Turn slide over so the cover
glass faces up
Immersion oil is on a dry
objective (especially the 40xR)
Check the objectives, clean if
necessary
No immersion oil used
with100xR objective
Use immersion oil
Air bubbles in immersion oil
Remove bubbles
Condenser aperture is closed
or open too much
Open or close properly
Condenser is positioned too
low
Position the condenser slightly
lower than the upper limit
ACCU-SCOPE®
73 Mall Drive, Commack, NY 11725 • 631-864-1000 • www.accu-scope.com
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EXC-120 MICROSCOPE SERIES
IMAGE PROBLEMS
Problem
Cause
Corrective Measures
Specimen rises from stage
surface
Secure the specimen in the
slide holder
Revolving nosepiece is not in
the click-stop position
Turn the nosepiece to the clickstop position
Lamp intensity is too low
Adjust the light intensity by
rotating the intensity control
dial and/or iris diaphragm
Blue filter not used
Use daylight blue filter
Image is too bright
Lamp intensity is too high
Adjust the light intensity by
rotating the intensity control
dial and/or iris diaphragm
Insufficient brightness
Lamp intensity is too low
Adjust the light intensity by
rotating the intensity control
dial and/or iris diaphragm
Aperture diaphragm closed too
far
Open to the proper setting
Condenser position too low
Position the condenser slightly
lower than the upper limit
Image moves while focusing
Image tinged yellow
MECHANICAL PROBLEMS
Image will not focus with high
power objectives
High power objective contacts
slide when changed from low
power objective
Slide upside down
Turn the slide over so the
cover glass faces up
Cover glass is to thick
Use a 0.17mm cover glass
Slide upside down
Turn the slide over so the
cover glass faces up
Cover glass is to thick
Use a 0.17mm cover glass
Diopter adjustment is not set
properly
ACCU-SCOPE®
Readjust the diopter settings
as outlined in section 4.3
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EXC-120 MICROSCOPE SERIES
MECHANICAL PROBLEMS (continued)
Problem
Lamp does not light when
switched on
Cause
Corrective Measures
No electrical power
Check power cord connection
Lamp bulb burnt out
Replace bulb
Fuse blown out
Replace fuse
Slippage of focus when using
the coarse focusing knob
Tension adjustment is set too
low
Increase the tension on the
focusing knobs
Fine focus is ineffective
Tension adjustment is set too
high
Loosen the tension on the
focusing knobs
ACCU-SCOPE®
73 Mall Drive, Commack, NY 11725 • 631-864-1000 • www.accu-scope.com
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EXC-120 MICROSCOPE SERIES
MAINTENANCE
Please remember to never leave the microscope with any of the objectives or eyepieces removed and
always protect the microscope with the dust cover when not in use.
SERVICE
ACCU-SCOPE ® microscopes are precision instruments which require periodic servicing to keep them
performing properly and to compensate for normal wear. A regular schedule of preventative maintenance
by qualified personnel is highly recommended. Your authorized ACCU-SCOPE ® distributor can arrange
for this service. Should unexpected problems be experienced with your instrument, proceed as follows:
1. Contact the ACCU-SCOPE ® distributor from whom you purchased the microscope. Some
problems can be resolved simply over the telephone.
2. If it is determined that the microscope should be returned to your ACCU-SCOPE ® distributor or to
ACCU-SCOPE ® for warranty repair, pack the instrument in its original Styrofoam shipping carton. If you
no longer have this carton, pack the microscope in a crush-resistant carton with a minimum of three
inches of a shock absorbing material surrounding it to prevent in-transit damage. The microscope should
be wrapped in a plastic bag to prevent Styrofoam dust from damaging the microscope. Always ship the
microscope in an upright position; NEVER SHIP A MICROSCOPE ON ITS SIDE. The microscope or
component should be shipped prepaid and insured.
LIMITED MICROSCOPE WARRANTY
This microscope and its electronic components are warranted to be free from defects in material and workmanship
for a period of five years from the date of invoice to the original (end user) purchaser. The LED lamp is warranted
for a period of two years from the date of invoice to the original (end user) purchaser. This warranty does not cover
damage caused in-transit, misuse, neglect, abuse or damage resulting from improper servicing or modification by
other then ACCU-SCOPE approved service personnel. This warranty does not cover any routine maintenance
work or any other work, which is reasonably expected to be performed by the purchaser. Normal wear is excluded
from this warranty. No responsibility is assumed for unsatisfactory operating performance due to environmental
conditions such as humidity, dust, corrosive chemicals, deposition of oil or other foreign matter, spillage or other
conditions beyond the control of ACCU-SCOPE INC. This warranty expressly excludes any liability by ACCUSCOPE INC. for consequential loss or damage on any grounds, such as (but not limited to) the non-availability to
the End User of the product(s) under warranty or the need to repair work processes. Should any defect in material,
workmanship or electronic component occur under this warranty contact your ACCU-SCOPE distributor or ACCUSCOPE at (631) 864-1000. This warranty is limited to the continental United States of America. All items returned
for warranty repair must be sent freight prepaid and insured to ACCU-SCOPE INC., 73 Mall Drive, Commack, NY
11725 – USA. All warranty repairs will be returned freight prepaid to any destination within the continental United
States of America, for all foreign warranty repairs return freight charges are the responsibility of the
individual/company who returned the merchandise for repair.
ACCU-SCOPE is a registered trademark of ACCU-SCOPE INC., Commack, NY 11725
ACCU-SCOPE®
73 Mall Drive, Commack, NY 11725 • 631-864-1000 • www.accu-scope.com
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