Olympus CHA User manual

OLYMPUS STUDENT MICROSCOPES

IINSTRUCTION MANUAL I

MODELS

CBA

CBB

Scanned

McHone.

Nov

for

personal

use

only.

not

for

sale

This instruction manual

has

been prepared

for

the

Olympus

Student

Microscopes Models

CHA

and CHB.

recommended

that

you

read

the

manual

carefully

order

familiarize

yourself

fully

with

your

microscope,

order

obtain

optimum

performance

from

this

precision instrument.

IMPORTANT

Observe

the

following points carefully.

•

Operation

Always

handle the microscope

with

the care

deserves. and avoid

abrupt

motions

any

impact.

Avoid

exposure

the microscope

direct

sunlight,

dust

and

vibration.

3. Only use

the

tension

adjustment

ring for altering

the

tension

the

coarse

adjustment

knobs. Do

not

twist

the

two

coarse

adjustment

knobs

the

opposite

directions

simultaneously,

this

will

cause

damage.

Ascertain

that

the voltage selector switch on the

base

plate

the Model

CHA

set

conform

with

the

local mains voltage.

Disconnect the line cord

from

the AC power

outlet

before fuse replacement.

•Maintenance

Lenses

must always

kept clean. Fine

dust

on lens surfaces should

blown

wiped

off

means

air

blower

aclean brush.

Carefully

wipe

off

oil

finger-

prints deposited

the lens surfaces

with

gauze moistened

with

asmall

amount

xylene, alcohol

ether.

not

use

organic solutions

wipe

the surfaces

various components. Plastic parts,

especially, should

cleaned

with

aneutral detergent.

Never disassemble the microscope

for

repair.

4. The microscope should

stored in its container immediately

after

use.

this

not

possible,

should be covered

with

the

vinyl

dust

cover provided.

Scanned

McHone.

Nov

for

personal

use

only.

not

for

sale

CONTENTS

STANDARD

EQUIPMENT 2

II.

VARIDUS

CDMPONENTS OF

THE

STUDENT

MICROSCOPES MODELS

CHA

&CHB 3

III.

ASSEMBLY 4

IV.

IDENTIFICATION

AND

FUNCTION OF

VARIOUS

CDMPONENTS 5

OPERATION .

Adjustment

Minimum Line Voltage

Placing aSpecimen Slide

the

Stage

Interpupillary Distance and Diopter

Adjustments

Tension

Adjustment

Coarse

Adjustment

I<nabs

Automatic

Pre·focusing Lever

Aperture

Iris Diaphragm 9

Immersion Objectives

VI.

OPTICAL

DATA.

. .

VII.

TROUBLESHOOTING.

@How

put

microscope fixing blocks (provided

with

optional

wooden

storage case)

The blocks should

put

at the

bottom

the

wooden storage

case

in the

following

order:

Insert

the

screw

with

the

flat washer

into

one

lhe

two

holes (8

mm4>1

shown

in the drawing.

Turn

the screw

gel

into

the block and

tighten

with

the

spanner provided

ascrewdriver.

3. Put the

other

block in the above order.

Microscope

fixing

block

Wooden

storage case

--jl-Bmm¢

Flat washer

------

"".w

.____---=.=c.

I. STANDARD EQUIPMENT

Model

CHA-213-W

CHB-213-W

Microscope

stand

with quadruple revolving nosepiece, plain

stage

and in-base illuminator

(6V

lOW halogen) CHA-F-W 1 0

Microscope stand

with

quadruple revolving nosepiece, plain

stage and in-base illuminator

(20W

tungsten) CHB-F-W 01

Binocular

observation

tube, inclined

45°

BH-B

145-W

1 1

Mechanical

stage

with coaxial right-hand

low

drive controls CH-MVR 1 1

Abbe

condenser

CH-CD 1 1

Ach_

lOX

1 1

Objectives Ach. S40X. spring-loaded 11

Ach. SlOOX,

oil.

spring-loaded 1 1

Eyepieces

BiWF

lOX

Lamp socket CH-LSHB 1 0

Halogen light source CH-LSH Halogen bulbs

lOW

HALCH

Tungsten bulbs 20WCHB 0 3

Spare

fuses

O.5A

for

lOO-110-120V (or O.3A

for

220-240V) 2 2

Eyepiece

caps

Immersion oil, bottled 11

Vinyl

dust cover 1 1

•Optional Accessories:

Monocular tube. inclined

45°

Mechanical stage

with

coaxial left-hand drive controls

Tungsten bulb.

lOW

for

CHA

Wooden storage case

CH-M045

CH-MVL

CH-6V lOW-

CHA-BIWSC

II.

VARIOUS COMPONENTS OF THE STUDENT MICROSCOPES MODELS

CHA&CHB

These models

are

composed

various components and interchangeable accessories. A

variety

combinations, standard

optional,

available according

your

requirements.

This

apicture

the Model CHA.

Eyepiece

Revolving nosepiece

Objective

Plain stage

Base

Observation

tube

Stand

Mechanical stage

Condenser

III.

ASSEMBLY

The

picture

below

illustrates the sequential procedure

assembly.

The

numbers indicate

the assembly

order

various components.

*Take care

assembly

keep all

glass

surfaces clean and avoid scratching the lens surfaces.

®Eyepiece cap

knob

~'"

Securely

attach

the

mechanical II\.

(J)

Eyepiece

stage

the plain stage

with

""">

the

clamping screws and tighten

""-

them

with acoin.

Observation

tube

®Objective

Observation tube

!clamping screw

@Mechanical stage

Stand

---------~g~~g~O~L-®~9~connect

the plug

Clamping screws

th~outlet.

®Condenser

ALine

cord

~~~

®Filter

mount

Pull

down

the locking

the lamp house cover.

Aligning the

positioning

dots

condenser

mount

and condenser,

insert

the

condenser

into

the

mount

from

below and clamp

with

condenser clamping screw.

Tungsten bulb

20WCHB

IFor CHB I

®::J

Halogen Lamp socket

bulb CH-LSHB

ForCHA

0--

IFor

CHA

Tungsten

bulb

6V10W

Q:::J

After

opening the lamp house

cover

the microscope base,

press the tungsten bulb socket

against the

lamp

mount,

and

rotate

clockwise.

For

use

ahalogen

bulb,

insert

its contact pins into the socket.

*In

case

the tungsten

bulb,

its

silver reflecting surface must

positioned pointing

the

base

plate.

*Before use,

wipe

off

fingerprints

or stains on the resPective bulbs.

IV.

IDENTIFICATION

AND

FUNCTION OF

VARIOUS

COMPONENTS

Interpupillary

distance scale

Mechanical tube length

adjustment ring

Rotate the

ring

match

your

interpupillary

distance

setting

ob-

tained

from

the

scale. and make

diopter

adjustment.

Specimen holder

Low

drive coaxial stage

con~

trois

Rheostat trimmer screw

Main switch

....

<O'!'!

..............

Observation tube clamping

screw

Loosen the

clamping

screw

slightly

rotate

the observation

tube

desired.

Tension adjustment ring

Coarse adjustment

knob

Fine

adjustment

knob

Graduated

increments

2.5J.L

•

....

Sliding

control

lever

For

continuously

variable

light

intensitY.

After switching on,

necessary.

rotate

this

screw

with

coin

until

the

bulb

dimly

lit,

with

the

sliding

control

switch

minimum

voltage position.

Fuse holder

Grounding

terminal

Line voltage selector switch

(For

CHA)

Set

the

switch

con-

form

with

the

local mains voltage.

Automatic

pre-focusing lever

Condenser height adjustment

knob

The

condenser is generally used

top

position.

For

use

with

objectives

lOX

and

lower

power,

however,

recommended

lower

the condenser

properly

eliminate

uneven field

illumina-

tion.

Aperture iris

diaphragm lever

Filter

mount

Slip-in

type

..........

~\~._._~I_~_-,---:::-F~il~te~r-:.mc:07u~n~t

Accepts

45mm

diam.

filters.

Lamp

mount

Lamp house clamping knob

§iJx~o

The

lamp

house

cover

can be

opened

pulling

down

the

knob;

closed

pushing

until

snaps

place.

Before pushing, ascertain

that

the

knob

positioned

shown

the

picture

right,

marked

with

circle.

Fig. 1

V. OPERATION

•Summary

Putting

the Microscope in

Operation

Match the line voltage selector switch

local mains voltage

(for

CHAI.

(See

page

5,)

2. Switch on

the

light source.

Adjust the

trimmer

screw.

(See

page

7.1

Place

aspecimen slide on the

stage.

(See

page

7.)

Loosen the

automatic

pre-focusing lever.

Coarse

focus

with

low

power objective.

Make interpupillary

and

diopter

adjustments.

ISee

page

8.)

Swing in the desired objective.

Adjust light intensity.

10. Fine focus.

11. Lock the automatic pre-focusing lever.

(See

page

8.1

12. Adjust the aperture iris diaphragm. ISee

page

9.1

A. Adjustment

Minimum

Line Voltage (CHA)

The

minimum

voltage required

for

the lightsource can be adjusted

with

the rheostat

trimmer

screw

the microscope

base

plate

in accordance

with

the

line

voltage and

frequency.

The

built·in

rheostat incorporates a

thyristor

in its semi-conductor

circuit

for

the

following

advantages:

(a)

Extremely

fine

adjustment

light

intensity

can

easily achieved.

(bl Flickering

the bulb filament

eliminated and the light intensity

stabilized.

Icl

Increased life expectancy

the bulb.

For

adjustment

the

minimum

line

voltage, ascertain

that

the voltage selector switch

set

conform

with

the local mains voltage, and the sliding

control

lever

positioned closest

you

(low

voltage). and then

activate the main switch

CD.

the

bulb

dimly

lit,

the secondary

VOltage

correct.

not

lit

at all,

rotate the rheostat

trimmer

screw @gradually

with

coin,

until

the

bulb

dimly

lit;

then push the sliding

control

lever

forward

order

obtain

optimum

light

intensity. (Fig. 1)

Placing aSpecimen Slide on the Stage

NOTE:

1) Cover

glass:

Olympus objectives

with

engraving

"0.17"

are corrected

for

use

with

cover

glasses

0.17mm

thickness (No. 1%).

2) Specimen slide:

recommended

use

specimen slides

O.8mm

1.5mm

thickness.

However,

for

use

with

the immersion

darkfield

condenser

BH-DCW (optionally availablel. aspecimen slide between

O.8mm

1.2mmthickness

preferable.

Interpupillary

Distance and

Diopter

Adjustments (Binocular tube)

(

Hold

the knurled dovetail slides Q)

the

right

and

left

eyepiece tubes

with

both

hands and push the

tubes together,

pull them apart laterally, which-

ever

required,

while

looking

through

the

eyepieces

with

both

eyes,

until

perfect binocular vision

obtained (Fig.

21.

Rotate the tube length adjustment ring ®

the

right eyepiece tube

match

your

interpupillary

distance setting which

you

obtained

from

the scale

Look at the image

through

the

right

eyepiece

with

your

right eye and focus on the specimen

with

the

coarse and

fine

adjustment knobs.

Fig.2

Next,

looking

at the image through the

left

eyepiece

with

your

left

eye

rotate

the tube

length adjustment ring @

focus on

the

specimen

without

using the coarse and fine

adjustment knobs.

D. Tension

Adjustment

Coarse

Adjustment

Knobs

Atension adjustment ring

provided

the

right hand coarse adjustment knob.

With

this device the

tension

the coarse adjustment

freely adjustable

for

either heavy

light

movement depending on operator

preference. However,

not

loosen the tension adjust-

ment ring

too

much, because this may

cause

thE~

stage

drop

the fine adjustment knobs

slip.

The

arrow

mark indicates increase

the tension.

careful

not

rotate the

right

and

left

coarse adjust-

ment

knobs in the opposite directions simultaneously.

Automatic

Pre·focusing Lever

This lever

provided

prevent possible contact

between specimen and objective

well

simplify

coarse focusing. The lever

locked

after

coarse focus

has

been accomplished. This prevents

further

upward

travel

the

stage

by means

the coarse adjustment

knobs, and automatically provides a

limiting

stop

the stage

lowered and then raised again. The

automatic

pre-focusing lever does

not

restrict

fine

focus-

ing. (Fig. 4)

Fig. 3

Fig.4

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