Olympus CX31 User Manual [ru]

INSTRUCTIONS

CX31

BIOLOGICAL MICROSCOPE

This instruction manual is for the Olympus Biological Microscope Model CX31. To ensure
the safety, obtain optimum performance and to familiarize yourself fully with the use of this
microscope, we recommend that you study this manual thoroughly before operating the
microscope. Retain this instruction manual in an easily accessible place near the work
desk for future reference.

AX6654

CONTENTS

Page

IMPORTANT — Be sure to read this section for safe use of the equipment. — 1-3

1 NOMENCLATURE 4

2

SUMMARY OF BRIGHTFIELD OBSERVATION PROCEDURE

3 ASSEMBLY — See this section for the replacement of the light bulb. — 6-7

4 USING THE CONTROLS 8-14

4-1 Base..........................................................................................................................................................................................8

Turning On the Bulb Field Iris Diaphragm

1 2

4-2 Focusing Block...............................................................................................................................................................9

Adjusting the Coarse Adjustment Knob Tension Simplified Pre-focusing Dial

1 2

4-3 Stage..............................................................................................................................................................................10-11

Placing the Specimen Moving the Specimen

1 2

4-4 Observation Tube................................................................................................................................................11-12

Adjusting the Interpupillar Distance Adjusting the Tilt Adjusting the Diopter

1 2

Using the Eye Shades Using the Eyepiece Micrometer Disk

4 5

4-5 Condenser........................................................................................................................................................................13

1

Centering the Field Iris Diaphragm Aperture Iris Diaphragm

4-6 Immersion Objectives............................................................................................................................................14

Using the Immersion Objectives

1

2

3

CX31

5

5 TROUBLESHOOTING GUIDE 15- 16

6 SPECIFICATIONS 17

7 OPTICAL CHARACTERISTICS 18

PROPER SELECTION OF THE POWER SUPPLY CORD..................................................19-20

IMPORTANT

SAFETY PRECAUTIONS

Fig.1

1. After the equipment has been used in an observation of a specimen
that is accompanied with a potential of infection, clean the parts
coming in contact with the specimen to prevent infection.

· Moving this product is accompanied with the risk of dropping the

specimen. Be sure to remove the specimen before moving this
product.

· In case the specimen is damaged by erroneous operation, promptly

take the infection prevention measures.

2. To avoid potential shock hazard and fire, always set the main switch @
to “ ” (OFF) and disconnect the power cord from the AC receptacle
at the rear of the microscope and from the wall outlet before replacing
the bulb. Allow the lamp housing cover ² and the bulb to cool before
touching them.

3. Install the microscope on a sturdy, level table.
The air vents on the underside of the base should never be blocked
by placing the microscope on a flexible surface such as a carpet, as
this could result in overheating and cause a fire.

4. Always use the power cord provided by Olympus. If no power cord is
provided, please select the proper power cord by referring to the
section “PROPER SELECTION OF THE POWER SUPPLY CORD” at the
end of this instruction manual. If the proper power cord is not used,
Olympus can no longer warrant the electrical safety and performance
of the equipment.

5. When installing the microscope, route the power cord away from the
microscope base. Should the power cord come in contact with the hot
microscope base, the power cord could melt and cause electric shock.

6. Connect the power cord correctly and ensure that the grounding
terminal of the power supply and that of the wall outlet are properly
connected. If the equipment is not grounded, Olympus can no longer
warrant the electrical safety and performance of the equipment.

7. Never set the main switch @ to “ ” (ON) while any metallic object is
inserted into the air vents of the microscope frame as this will result in
electrical shock, personal injury and equipment damage.

8. When the microscope is not in use or when it is malfunctioning,
disconnect the power cord plug from the AC receptacle or from the
wall outlet.

1

Safety Symbols

The following symbols are found on the microscope. Study the meaning of the symbols and always use the equipment in
the safest possible manner.

ExplanationSymbol

Indicates that the surface becomes hot, and should not be touched with bare hands.

Before use, carefully read the instruction manual. Improper handling could result in personal
injury to the user and/or damage to the equipment.

Indicates that the main switch is ON.

Indicates that the main switch is OFF.

CX31

Warning Label

A warning label is affixed at parts where special precaution is required when handling and using the microscope. Always
heed the warnings.

Warning label
position:

If the warning label becomes soiled, peeled off, etc., contact Olympus to have it replaced.

Getting Ready

1

Fig. 2

Base underside
(Caution for bulb replacement)

1. A microscope is a precision instrument. Handle it with care and avoid
subjecting it to sudden or severe impact.

2. Do not use the microscope where it is subjected to direct sunlight,
high temperature and humidity, dust or vibrations. (For the operating
environment conditions, refer to and adhere to the conditions specified
in Chapter 6, “SPECIFICATIONS” on page 17.)

3. The tension of the coarse focus adjustment knob should only be
adjusted by means of the tension adjustment ring.

4. Heat from the microscope is led away by natural convection.
Consequently, leave an enough space (10 cm or more) on the rear of
the microscope and ensure that the room is well ventilated.

5. When moving the microscope, carefully carry it with one hand under
the base @ and the other hand holding at the recessed handle on the
rear of the arm ² as shown in the illustration on the left.

#Damage to the microscope will occur if you hold it by the stage, X-

axis/Y-axis knob, binocular section of the observation tube, etc.
Also be sure to remove the specimen to prevent it from falling off.

#Sliding the microscope on the surface of the table may damage or

tear off the rubber feet and/or scratch the table top surface.

2

Maintenance and Storage

1

1. Clean all glass components by wiping gently with gauze. To remove fingerprints or oil smudges, wipe with gauze
slightly moistened with a mixture of ether (70%) and alcohol (30%).

Since solvents such as ether and alcohol are highly flammable, they must be handled carefully. Be sure to
keep these chemicals away from open flames or potential sources of electrical sparks -- for example,
electrical equipment that is being switched on or off. Also remember to always use these chemicals only in a
well-ventilated room.

2. Do not attempt to use organic solvents to clean the non-optical components of the microscope. To clean them, use a
lint-free, soft cloth lightly moistened with a diluted neutral detergent.

3. Do not disassemble any part of the microscope as malfunction or damage may occur.

4. When not using the microscope, ensure that the frame is cooled down and store it in a locker or cover it with a dust
cover.

5. When disposing of the microscope, check the regulations and rules of your local goverment and be sure to observe
them.

Caution

3

If the microscope is used in a manner not specified by this manual, the safety of the user may be imperiled. In
addition, the equipment may also be damaged. Always use the equipment as outlined in this instruction manual.

The following symbols are used to set off text in this instruction manual.
: Indicates that failure to follow the instructions in the warning could result in bodily harm to the

user and/or damage to equipment (including objects in the vicinity of the equipment).
# : Indicates that failure to follow the instructions could result in damage to equipment.
} : Indicates commentary (for ease of operation and maintenance).

3

This device complies with the requirements of directive 98/79/EC concerning in vitro diagnostic medical devices.
CE marking means the conformity to the directive.

NOTE : This equipment has been tested and found to comply with the limits for a Class A digital device,

pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection

against harmful interference when the equipment is operated in a commercial environment. This

equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in

accordance with the instruction manual, may cause harmful interference to radio communications.

Operation of this equipment in a residential area is likely to cause harmful interference in which case the

user will be required to correct the interference at his own expense.

FCC WARNING : Changes or modifications not expressly approved by the party responsible for compliance

could void the user's authority to operate the equipment.

CX31

NOMENCLATURE

}The revolving nosepiece is fastened with a band to prevent it from turning during transportation. Remove the band when

unpacking the microscope. Be sure to store the band for re-transportation of the microscope.

* The stage is shipped with the two transport pins locked. When using the microscope for the first time, remove the transport

lock pins before use.

}If you have not yet attached the lamp bulb and power cord to the microscope, read Chapter 3, “ASSEMBLY” on pages 6 to 7.

Eyepieces

(Fixed at 10X)

Diopter
adjustment ring
(Page 11)

Revolving Nosepiece

Objective

Specimen holder
(Page 10)

Transport lock pin*

Interpupillar distance scale (Page 11)

Observation Tube

Binocular tube: CX31RBSF microscope frame

CX31RBSFA microscope frame

Tilting tube: CX31RTBISF microscope frame

Tube clamping screw

(Use the provided Allen wrench.)

Simplified pre-focusing dial (Page 9)

Microscope Frame

CX31RBSF

CX31RBSFA

CX31RTBISF

Transport lock pin*

Main switch
(Page 8)

Aperture iris
diaphragm knob
(Page 13)

Condenser
centering screws
(Page 13)

Condenser

Filter holder
Place a 45 mm filter on this.

Field iris diaphragm ring

Light intensity
control knob
(Page 8)

Stage

Fine focus
adjustment knob
(Page 9)

Coarse focus
adjustment knob
(Page 9)

X-axis knob (Page 11)

Y-axis knob (Page 11)

4

SUMMARY OF BRIGHTFIELD OBSERVATION
PROCEDURE

123

· Turn the revolving nosepiece to
engage the 10X objective.

#Make sure that the revolving

nosepiece stops with an audible
click.

456

· Set the main switch to “ I ” (ON)
and adjust the brightness with the
light intensity knob. (Page 8)

789

· Place a specimen on the stage.
(Page 10)

· Turn the coarse and fine
adjustment knobs to bring the
specimen into focus.

· Turn the X-axis knob and Y-axis
knob to move the specimen into
the light path. (Page 11)

· Adjust the interpupillary distance.
(Page 11)

· When the tilting observation tube is
used, adjust the angle of tilt.
(Page 11)

· Adjust the diopter. (Page 11) · Center the field iris diaphragm.
(Page 13)

10 Engage the objective to be used for observation in the light path, then readjust the focus.
11 Place the required filter on the filter holder.
12 Re-adjust the aperture iris diaphragm, field iris diaphragm and brightness and start observation.

5

· Adjust the aperture iris diaphragm
and field iris diaphragm. (Page 8)

ASSEMBLY

Fig. 3

Mounting the Bulb (Replacement of Bulb) (Fig. 3)

1

1. Turn the microscope frame on its side and pull the lamp housing
knob @ on the underside of the base to open the lamp housing cover.

2. Holding the halogen bulb ² contained in the polyethylene bag to
avoid leaving fingerprints on the bulb, fully insert the contact pins into
the bulb socket ³ When properly seated, pull off the polyethylene bag.

<Applicable bulb>
6 V, 30 W halogen bulb: 6V30WHAL (Philips 5761)

Always use the designated bulb. Use of improper bulb may result
in fire.
Do not touch the bulb with bare hands. If fingerprints are
accidentally left on the bulb, wipe the bulb with a soft, lint-free
cloth moistened with alcohol. Using a contaminated bulb will
shorten the service life of the bulb.

3. With the lamp housing knob still pulled out, close the lamp housing
cover. Then push in the lamp housing knob to lock the cover.

#The lamp housing cover cannot be closed if the knob is pushed in

before you attempt to close the cover.

CX31

Fig. 4

Fig. 5

Caution for Bulb Replacement During Use or Right After Use

Whenever you replace the bulb during use or right after use, first
move the main switch to “ ” (OFF), disconnect the power cord
from the wall outlet, and allow the bulb and parts around the bulb
to cool before touching.

#If the bulb burns out during an observation and needs to be

replaced, remove the specimen, filter and other objects likely to
fall off, before tilting the microscope frame to replace the bulb.

Connecting the Power Cord (Figs. 4 - 6)

2

Cables and cords are vulnerable when bent or twisted. Never
subject them to excessive force.
Make sure that the main switch @ is set to “ ” (OFF) before
connecting the power cord. (Fig. 4)
Always use the power cord provided by Olympus. IF no power
cord is provided with the microscope, please select the proper
power cord by referring to section “ROPER SELECTION OF THE
POWER SUPPLY CORD” at the end of this instruction manual.

1. Connect the power cord plug ² to the AC receptacle |. (Fig. 5)

Connect the power cord to a grounded, 3-conductor power outlet
and ensure that the ground terminal of the power supply and that
of the wall outlet are properly connected. If the equipment is not
grounded, Olympus can no longer warrant the electrical safety
performance of the equipment.

2. Plug the power cord plug | into the wall outlet ƒ. (Fig. 6)

Fig. 6

6

Fig. 7

Fig. 8

Attaching the Optional Cord Hanger (CH3-CH)

3

}By attaching the optional CH3-CH cord hanger on the rear of the

microscope frame, the power cord can be accommodated by winding
around the hanger.
Insert the hook ² of the cord hanger @ into the air vent groove on the
rear of the microscope by aligning the attaching position ³, and
clamp by sliding the cord hanger downward while pushing it against
the microscope with a strong force.

#Do not hold the microscope frame by the cord hanger when

carrying the microscope. Otherwise, the cord hanger may be
detached during transport, resulting in falling of the microscope
and personal injury.

Removal

To prevent electric shock, disconnect the power cord first. Also
make sure you use the provided Allen wrench, not a thin Allen
wrench.
Move the microscope frame to the edge of the table |, apply an
Allen wrench ƒ onto the lower part of the cord hanger @, and
move the entire hanger upward by pushing the Allen wrench
toward the directions 1 and 2 to remove. (Fig. 8)

(Figs. 7 & 8)

7

USING THE CONTROLS

4-1 Base

Fig. 9

Turning On the Bulb (Fig. 9)

1

1. Set the main switch @ to “ ” (ON).

2. Turn the light intensity knob ² clockwise in the direction of the arrow
to make the illumination brighter or counterclockwise to make it darker.

The numbers around the knob indicates the reference voltage values.

Field Iris Diaphragm (Fig. 10)

2

CX31

Fig. 10

Using the field iris diaphragm ring @, adjust the diameter of the field
iris for objective power to the extent that it just circumscribes the field
of view. When the field iris diaphragm is stopped down to circumscribe
the field of view, it will exclude extraneous light and improve image
contrast within the field of view.

#When using the 100X objective, the field iris diaphragm image will

not be visible within the field of view. Accordingly, stop down the
diaphragm to its smallest diameter.

8

4-2 Focusing Block

Fig. 11

Adjusting the Coarse Adjustment Knob Tension (Fig. 11)

1

1. The coarse adjustment knob tension is preadjusted for easy use.
However, if desired, one can change the tension using the tension
adjustment ring @. Applying a large flat-bladed screwdriver to any of
the grooves ² on the circumference of the ring, turning the ring
clockwise (in the direction of the arrow) increases tension, and vice
versa.

2. The tension is too low if the stage drops by itself of focus is quickly lost
after adjustment with the fine adjustment knob ³. In this case, turn the
ring in the direction of the arrow to increase tension.

Simplified Pre-focusing Dial (Fig. 12)

2

DOWN

Fig. 12

UP

}This mechanism ensures that the objective does not come in contact

with the specimen and damage it.

1. After focusing on the specimen, turn the simplified pre-focusing dial @
on the focusing block so that the mechanism contacts the stage
holder.

2. To allow a certain margin for the focused position, return the simplified
pre-focusing dial by about a half turn from the position where the
mechanism contacts the stage holder.

#When it not required to use this mechanism, set the pre-focusing

dial @ to the uppermost position.

9

4-3 Stage

Fig. 13

Placing the Specimen (Fig. 13)

1

#Releasing the curved finger with great force or suddenly releasing

your grip on the curved finger knob @ while releasing the curved
finger will crack or damage the slide glass. Always place the
specimen with great care.

Observation with Specimen Holder for Single Specimen Slide

1. Turn the coarse adjustment knob ² counterclockwise (in the direction
of the arrow) to lower the stage.

2. Open the spring-loaded curved finger ³ on the specimen holder and
place the specimen slide into the specimen holder from the front.

3. After placing the slide as far as it will go, gently release the curved
finger ³.

CX31

Observation with Specimen Holder for Two Specimen Slides

1. Place the first specimen slide as described in steps 1 and 2 above,
then place the second specimen slide so that it contacts the first
specimen slide.

2. Gently release the curved finger ³.

Observation by Placing the Specimen Slide with One Hand

Place the specimen slide at the front of the stage, then slide the
specimen slide on the stage surface to slowly and gradually open the
curved finger in the direction of the arrow. Insert the specimen slide
into the specimen holder until it is fully and properly seated in the
specimen holder.

· Cover Glass
Use cover glasses of 0.17 mm thickness in order to allow the
objectives exhibit their full performances.

· Specimen Slide
Use specimen slides of 0.9 to 1.4 mm thickness. Using thicker
specimen slides may result in inaccurate imaging of the field iris
diaphragm image on the specimen.

10

Fig. 14

4-4 Observation Tube

Moving the Specimen (Fig. 14)

2

Turn the upper knob which is the Y-axis knob @ to move the
specimen in the vertical direction, and turn the lower knob which is the
X-axis knob ² to move it in the horizontal direction.

#Do not use the specimen holder or stage to move the specimen,

for this will damage the rotating mechanisms of the knobs.

#When the stage and specimen holder are stopped by the pre-

focusing dial, the tension of the X-axis/Y-axis knobs increases. In
this case, do not attempt to turn the knobs to move the stage
beyond the stopped position.

Adjusting the Interpupillar Distance (Fig. 15)

1

Be careful not have your finger caught by the clearance below the
binocular tube during interpupillary distance adjustment.

While looking through the eyepieces, adjust for binocular vision until
the left and right fields of view coincide completely. The index dot ·
indicates the interpupillary distance.

}Note your interpupillary distance so that it can be quickly duplicated.

Fig. 15

Fig. 16

Adjusting the Tilt (CX31RTBISF frame only) (Fig. 16)

2

}The tilting observation tube can be adjusted to a height and angle

suitable for ease of observation.
Hold the binocular section with both hands and move it up or down
as desired.

#To prevent damage to the mechanism, do not apply an excessive

force above or below the upper and lower stop positions.
Be careful not to have your finger by the clearance @ on the cover
during tilt adjustment.

Adjusting the Diopter (Fig. 17)

3

1. Looking through the right eyepiece with your right eye, rotate the
coarse and fine adjustment knobs to bring the specimen into focus.

2. Looking through the left eyepiece with your left eye, turn the diopter
adjustment ring @ to focus on the specimen.

11

Fig. 17

Using the Eye Shades (Fig. 18)

4

When Wearing Eyeglasses

Use with the eye shades in the normal, folded-down position. This will
prevent the eyeglasses from contacting and scratching the eyepieces.

When Not Wearing Eyeglasses

CX31

Fig. 18

Fig. 19

Fig. 20

Extend the folded eye shades in the direction of the arrow for efficient
use of the eyeshades by preventing extraneous light from entering
between the eyepieces and eyes.

Using the Eyepiece Micrometer Disk (Optional)

5

}Prepare one eyepiece micrometer disk (diameter 20.4 mm, thickness 1

mm) and two 20.4-RH reticle holders (available as 2-piece set).
The field number becomes 19.6 when the reticle holders are used.
When the tilting observation tube is used, the field number is fixed at
18 and does not change.

}If your eye is poor in eyesight and cannot focus the micrometer, use

eyeglasses to correct your vision.

1. Loosen the eyepiece clamping screws @ using a small, flat-blade
screwdriver and remove both eyepieces. When the tilting observation
tube is used, remove only the right eyepiece.

2. Hold the micrometer disk ² with the side with indications facing down
and place it into a reticle holder ³.

#Be careful not to leave dirt on the micrometer disk, as it will be

noticeable during observation.

3. Screw the reticle holder ³ containing the micrometer disk ² into the
bottom of an eyepiece.
Be sure to screw in all the way by hooking your nail into the notch |
on the holder at the end.

4. Screw the other reticle holder, alone, into the other eyepiece in order to
align the field number.

5. Attach the eyepieces again and tighten the clamping screws @.

(Figs. 19 & 20)

12

4-5 Condenser

Fig. 21

Field iris diaphragm image

Field of view through eyepieces

Centering the Field Iris Diaphragm (Figs. 21 & 22)

1

1. With the 10X objective engaged and the specimen brought into focus,
turn the field iris diaphragm ring @ counterclockwise to stop down the
diaphragm to near its minimum size.

2. Turn the condenser height adjustment knob ² to bring the field iris
diaphragm image into focus.

3. Rotate the two condenser centering knobs ³ to adjust so that the field
iris diaphragm image is centered in the eyepiece field of view. (Figs. 21
& 22)

4. To check centration, open the field iris diaphragm until its image
touches the perimeter of the field of view. If the image is not precisely
inscribed in the field of view, center again. (Fig. 22)

5. When used for actual observation, open the field iris diaphragm until its
image is slightly larger than the field of view.

Fig. 22

Fig. 23

Aperture Iris Diaphragm (Fig. 23)

2

· The aperture iris diaphragm determines the numerical aperture of the
illumination system. Matching the numerical aperture @ of the
illumination system with that of the objective provides better image
resolution and contrast, and also increases the depth of focus.

Adjustment method

Align the aperture iris diaphragm knob ² with the NA value @ on the
scale. The scale value should correspond to the NA number engraved
on the objective.
Since the aperture iris diaphragm knob has a certain width, align the
center line engraved on the knob with the scale indication.
When using a 100X objective, turn the aperture iris diaphragm knob ²
all the way to 0.9 on the scale. (Fig. 23)

· Since the contrast of microscope specimens is ordinarily low, setting
the condenser aperture iris diaphragm to between 70% and 80% of
the N.A. of the objective in use is usually recommended.

#If the aperture iris diaphragm is set too small, image ghost may be

observed.

13

4-6 Immersion Objectives

1

Fig. 24

CX31

Using the Immersion Objectives (Fig. 24)

}The 100X objective is included only in the standard set of the

CX31RBSFA combination.

#Be sure to use the provided Olympus immersion oil.

When the oil of other make is used the surface of the Top lens of
Condenser may be damaged.

1. Focus on the specimen by switching the objectives fro the lowest
power to highest power.

2. Before engaging the immersion objective in the light path, place a
drop of immersion oil provided with the 100X objective combination
model onto the specimen at the area to be observed.

3. Turn the revolving nosepiece to engage the immersion objective, then
focus using the fine adjustment knob.

#Since air bubbles in the oil will affect the image quality, make sure

that the oil is free of bubbles.
To remove bubbles, turn the revolving nosepiece to move the oil
immersion objective back and forth a few times.

}If the condenser engraving shows a numerical aperture (NA) of 1.0 or

higher, the number applies only when oil is applied between the slide
glass and the top surface of the condenser. When oil is not present,
the NA is about 0.9.

4. After use, remove oil from the objective front lens by wiping with gauze
slightly moistened with an ether (70%)/alcohol (30%) mixture.

Caution in use of the immersion oil
If immersion oil penetrates in your eye or attaches to your skin,
apply the following treatment immediately.

Eye: Rinse with fresh water (for more than 15 minutes)

Skin: Wash with water and soap.
When the appearance of your eye or skin is altered or pain
continues, immediately consult the doctor.

14

TROUBLESHOOTING GUIDE

Under certain conditions, performance of the unit may be adversely affected by factors other than defects. If problems
occur, 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 Olympus representative for assistance.

Problem Cause Remedy Page

1. Optical System

a) Field of view is obscured or not

evenly illuminated

Revolving nosepiece is not correctly
engaged.

Field iris diaphragm is not properly
centered.

Make sure that revolving nosepiece
clicks properly into place.

Center it.

15

13

Field iris diaphragm is stopped down
too far.

Dirt/dust on objective, eyepieces,
condenser or light exit glass.

b) Dirt or dust is visible in the field of

view.

c) Image shows diffraction. Condenser is lowered too far. Adjust the condenser height position. 13

d) Visibility is poor.

· Image is not sharp.

· Contrast is poor.

· Details are indistinct.

e) One side of image is blurred.

Image seems to waver.

Dirt/dust on light exist glass Clean thoroughly.

Dirt/dust on top lens of condenser

Dirt/dust on the specimen

Dirt/dust on eyepiece

Aperture iris diaphragm is stopped
down too far.

Objective is not engaged correctly in
light path.

Dirt/dust on front lens of objective.

Immersion oil is not being used with
an oil immersion objective.

Immersion oil contains bubbles. Remove bubbles. 14

Recommended immersion oil is not
used.

Dirt/dust on specimen. Clean it.

Dirt/dust on condenser.

Objective is not engaged correctly in
light path.

Specimen is not correctly mounted
on stage.

Open it to an optimum stop position.

Clean them.

Open it.

Make sure that revolving nosepiece
clicks into place correctly.

Clean it thoroughly. 3

Use immersion oil.

Use the specified immersion oil.

Make sure that revolving nosepiece
clicks into place correctly.

Place specimen correctly on top of
stage and secure it with specimen
holder.

13

14

14

10

8

3

3

5

3

5

15

Problem Cause Remedy Page

2. Coarse/Fine Focus Adjustment

a) Coarse adjustment knob is hard to

turn.

b) Stage drifts down by itself or focus

is lost during observation.

c) Coarse adjustment will not go all

the way up.

d) Coarse adjustment will not go all

the way down.

e) Objective makes contact with

specimen before focus is
obtained.

3. Observation Tube

Tension adjustment ring is
overtightened.

Tension adjustment ring is too loose.

Simplified pre-focusing dial is
keeping the stage down.

Condenser holder is too low.

Specimen is mounted upside down. Mount specimen correctly.

Loosen it.

Tighten it.

Set stopper mechanism to
uppermost position.

Raise condenser holder.

CX31

9

9

9

13

–

Field of view of one eye does not
match that of the other.

4. Stage

Image blurs as you move specimen.

5. Objective Change

Front lens of a high power objective
comes into contact with specimen
when it is engaged after a low-power
objective.

6. Electrical System

a) Bulb does not light.

b) Bulb burns out almost immediately. Wrong type of bulb is used. Use correct bulb type. 6

Interpupillar distance is incorrect. Adjust interpupillary distance.

Incorrect diopter adjustment. Adjust diopter. 11

Your view is not accustomed to
microscope observation.

Specimen is not correctly positioned
on the stage.

Specimen is mounted upside down. Mount specimen correctly.

Cover glass is too thick. Use 0.17 mm thick cover glass.

Bulb is not mounted. Mount designated bulb. 6

Bulb is burnt out. Replace bulb.

Power cord plug is not connected. Connect power cord. 6

Upon looking into eyepieces, try
looking at overall field before
concentrating on specimen range.
You may also find it helpful to look
up and into distance for a moment
before looking back into microscope.

Mount specimen correctly by
applying it on stage surface and
inserting below specimen holder.

11

–

10

–

10

6

16

SPECIFICATIONS

Item Specification

1. Optical system

2. Illumination Illuminator built in.

3. Focusing

4. Revolving nosepiece

5. Observation tube

6. Stage

7. Condenser

UIS (Universal Infinity System) optical system

6V 30W halogen bulb (PHILIPS 5761)
(Average service time: Approximately 100 hr. when used as directed)
100-120 V/220-240 V , 0.85/0.45 A, 50/60 Hz

Stage height movement by roller guide (rack & pinion)
Stroke per rotation: 36.8 mm
Full stroke range: 25 mm
Upper limit stopped by simplified pre-focusing dial
Tension adjustment on coarse focus adjustment knob.

4-position revolving nosepiece, fixed with inward tilt.

Type

Field number 1820

Tube tilting angle 30° to 60°30°

Interpupillary distance adjustment 48 to 75 mm48 to 75 mm

Size 188 mm x 134 mm

Movement range 76 mm (H) x 50 mm (V)

Specimen holder 2-slide holder

Type Abbe condenser (with built-in daylight filter)

N.A. 1.25 (with oil immersion)

Tilting binocular tubeBinocular tube

Aperture iris diaphragm

8. Dimensions & weight

9. Operating environment · Indoor use.

233(W) x 411(H) x 367.5(D) mm, approx.7.7kg(16.9 lb.)

· Altitude: Max. 2000 meters

· Ambient temperature: 5° to 40°C (41° to 104°F)

· Maximum relative humidity: 80% for temperatures up to 31°C (88°F), decreasing linearly
through 70% at 34°C (93°F), 60% at 37°C (99°F), to 50% relative humidity at 40°C (104°F)

· Supply voltage fluctuations; Not to exceed ±10% of the normal voltage.

· Pollution degree: 2 (in accordance with IEC60664)

· Installation/Overvoltage category: II (in accordance with IEC60664)

Built in

17

OPTICAL CHARACTERISTICS

CX31

The following table shows the optical characteristics
of combinations of eyepieces and objectives. The
figure on the right shows the performance data
engraved on the objectives.

Characteristics

Magnification

Objective

Plan CN
Plan Achromat
(FN 22)

*Included only in the standard set of the CX31RBSFA combination.
(Note) Field number of 10X eyepieces

· With the binocular tube, the FN is 20 and the actual field of view is the figure before ( ).

· With the tilting binocular tube, the FN is 18 and the actual field of view is the figure inside ( ).

4X
10X
40X

100X

N.A.

0.10

0.25

0.65

O*

1.2 5

W.D.

(mm)

18.5

10.6

0.6

0.13

Cover
Glass

Thickness

0.17

–
–

–

Magnification

Mechanical
tube length

Color band

Resolution

(µm)

3.36

1.34

0.52

0.27

10X eyepieces (See Note)

Depth of

Total Mag.

40X

100X
400X
1000X

Focus

(µm)

17 5. 0

28.0

3.04

0.69

Objective designation

Numerical aperture

Cover glass thickness

Field

of

View

5.0(4.5 )

2.0(1.8 )

0.5(0.45)

0.2(0.18)

Remark

(Oil immersion)

Glossary

Working distance (W.D.):
Numerical aperture (N.A.):

Resolving power:

Focal depth:

Field number:

Field of view diameter:
Total magnification:

The distance from the cover glass surface to the nearest point of the objective.
The N.A. value represents a performance number which can be compared to the relative
aperture (f-number) of a camera lens. The higher N.A., the higher the resolving power.
The ability to differentiate two points, i.e., the minimum distance by which the objects must be
separated in order to be revealed as two separate objects.
The depth in the image through which the focused image will appear uniformly sharp. As the
aperture iris diaphragm is stopped down, the focal depth becomes greater. The greater the N.A. of an
objective, the shorter the focal depth.
A number that represents the diameter in mm of the image of the field diaphragm that is formed by
the lens in front of it.
The actual size of the field of view in millimeters.
Equals the objective magnification multiplied by the eyepiece magnification.

18

PROPER SELECTION OF THE POWER SUPPLY CORD

If no power supply cord is provided, please select the proper power supply cord for the equipment by referring to “Specifications"
and "Certified Cord" below.

CAUTION : In case you use a non-approved power supply cord for Olympus products, Olympus can no longer warrant

the electrical safety of the equipment.

Specifications

Voltage Rating
Current Rating
Temperature Rating
Length
Fittings Configuration

125V AC (for 100-120V AC area) or, 250V AC (for 220-240V AC area)
6A minimum
60 minimum

3.05 m maximum
Grounding type attachment pulg cap Opposite teminates in molded-on IEC con­figuration appliance coupling.

Table 1 Certified Cord

A power supply cord should be certified by one of the agencies listed in Table 1, or comprised of cordage marked with an
agency marking per Table 1 or marked per Table 2. The fittings are to be marked with at least one of agencies listed in Table 1.
In case you are unable to buy locally in your country the power supply cord which is approved by one of the agencies
mentioned in Table 1, please use replacements apprpved by any othere quivalent and authorized agencies in your country.

Country Agency Certification Mark Country Agency Certification Mark

Argentina IRAM

Australia SAA

Austria ÖVE

Italy IMQ

Japan

Netherlands

JET, JQA, TÜV,
UL-APEX / MITI

KEMA

19

Belgium CEBEC Norway NEMKO

Canada CSA

Denmark DEMKO Sweden SEMKO

Finland FEI

France UTE United Kingdom ASTA, BSI

Germany VDE

Ireland NSAI

Spain AEE

Switzerland SEV

U.S.A. UL

Table 2 HAR Flexible Cord

APPROVAL ORGANIZATIONS AND CORDAGE HARMONIZATION MARKING METHODS

CX31

Approval Organization

Comite Electrotechnique Belge
(CEBEC)

Verband Deutscher Elektrotechniker
(VDE) e.V. Prüstelle

Union Technique de l'Electricité
(UTE)

Instltuto Itaaliano del Marchio di
Qualita’ (IMQ)

Bnitish Approvals Service for Electric
Cables (BASEC)

N.V. KEMA

SEMKO AB Svenska Elektriska
Matenelkontrollanstalter

Österreichisher Verband für
Elektrotechnik (ÖVE)

Danmarks Elektriske Materialkontroll
(DEMKO)

Printed or Embossed Harmonization
Marking (May be located on jacket
or insulation of internal wiring)

CEBEC <HAR>

<VDE> <HAR>

USE <HAR> 30 10 30

IEMMEQU <HAR>

BASEC <HAR>

KEMA-KEUR <HAR>

SEMKO <HAR>

<ÖVE> <HAR>

<DEMKO> <HAR>

Alternative Marking Utilizing

Black-Red-Yellow Thred (Length

of color section in mm)

Black Red Yellow

10 30 10

30 10 10

10 30 50

10 10 3 0

10 30 30

10 10 5 0

30 10 50

30 10 30

National Standards Authority of Ireland
(NSAI)

Norges Elektriske Materiellkontroll
(NEMKO)

Asociacion Electrotecnica Y
Electronica Espanola (AEE)

Hellenic Organization for
Standardization (ELOT)

Instituto Portages da Qualidade
(IPQ)

Schweizerischer Elektro
Technischer Verein (SEV)

Elektriska Inspektoratet

Underwriters Laboratories Inc. (UL)
Canadian Standards Association (CSA)

<NSAI> <HAR>

NEMKO <HAR>

<UNED> <HAR>

ELOT <HAR>

np <HAR>

SEV <HAR>

SETI <HAR> 10 30 90

SV, SVT, SJ or SJT, 3 X 18AWG
SV, SVT, SJ or SJT, 3 X 18AWG

30 30 50

10 10 70

30 10 70

30 30 70

10 10 9 0

10 30 90

20

EC REP

Shinjuku Monolith, 3-1, Nishi Shinjuku 2-chome, Shinjuku-ku, Tokyo, Japan

Wendenstraße 14-18, 20097 Hamburg, Germany

3500 Corporate Parkway, P.O. Box 610, Center Valley, PA 18034-0610, U.S.A.

One Corporate Drive, Orangeburg, NY 10962, U.S.A.

491B River Valley Road, #12-01/04 Valley Point Office Tower, Singapore 248373

31 Gilby Road, Mount Waverley, VIC., 3149, Australia

Blue Lagoon Drive, Suite 290 Miami, FL 33126, U.S.A.

5301

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