Olympus BH2 BHT User manual

OLYMPUS SYSTEM MICROSCOPE

Model

BHT

OLYMPUS

This instruction manual has been written for the use of the Olympus System Microscope Model

BHT.

It is recommended that you read the manual carefully in order to familiarize yourself fully

with the use of the microscope, so that you can obtain optimum performance from it.

IMPORTANT

0

bserve the following points carefully:

Operation

Always handle the microscope with the care it deserves, and avoid abrupt motions.

1.

Avoid the use and maintenance of the microscope in direct sunlight, high temperature and

2.

humidity, dust and vibration.

3.

Only use the tension adjustment ring for altering the tension of the coarse adjustment

knobs. (Do not twist the two coarse adjustment knobs in opposite directions simultaneous­ly, as this will cause damage.)

4.

Make sure that the voltage selector switch on the base plate is set to conform with the local

mains voltage.

Make it a point of grounding the microscope to prevent electric accidents.

5.

Maintenance

1.

Lenses must always be kept clean. Carefully wlpe off oil or fingerprints deposited on the

a

lens surfaces with gauze moistened with

Do not use organic solutions to wipe the surfaces of various components. Plastic parts,

2.

especially, should be cleaned with neutral detergent.

3.

Never disassemble the microscope for repair. Only authorized Olympus service personnel
should make repairs.

The microscope should be covered with the vinyl dust cover provided and stored in a place

4.

free from humidity and fungi. For extended storage it is recommended to keep objectives
and eyepieces in desiccators, containing desiccants such as silica gel.

small amount

of

xylene, alcohol or ether.

CONTENTS

STANDARD EQUIPMENT

II.

NOMENCLATURE

Ill. ASSEMBLY
IV. IDENTIFICATION AND FUNCTION OF VARIOUS COMPOhlENTS
V. OPERATION

A. Switching on the Light Source

1

voltage Adjustment and Light Intensity
Placement of a Specimen Slide

B.

pizGq

kwecimen Slide

C. Observation Tube

1.

2.

3.

D.

Condenser Adjustment

1.

Field lris Diaphragm

Aperture lris Diaphragm

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

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

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

1

lnterpupillary Distance Adjustment

Diopter Adjustment

Light Path Selector

Condenser Centration

...

I

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

.

I

I

. .

E.

Focusing Adjustment

1.

Tension

l~se of Rubber Cap for Fine Adjustment Knob

2.

Pre-Focusing Lever

3.

Adjustment

F. Use of Immersion Objectives

G.

Photomicrography
VI. OPTICAL DATA
VII. TROUBLESHOOTING

of

Coarse Adjustment Knobs and Fine Adjustment

of

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

/

Stage Block Height

.....

. .

I.

STANDARD

EQUIPMENT

Component

Microscope stand BHT-F

I

Line cord UYCP

Binocular tube BH2-B 130

Observation tubes

I

Quintuple revolving nosepiece BH2-5RE
Square mechanical stage with right-hand

low drive coaxial controls

Condensers

Halogen lamp holder
Halogen bulbs 6V20WHAL 2

0

bjectives

I

Eyepieces WHKIOX

o---

Trinocular tube BH2-TR30

BH2-SVR

Abbe condenser BH2-CD 1 1 0
Swing-out condenser BH2-SC 0 0

LS-20H 1 1

D

Ach. 4X. D Ach. IOX, D Ach. 40X,

D

Ach. 100X (oil)

D Plan 4X. D Plan 10X. D Plan 40X
D

Plan 100X (oil)

1

1

--

1

Model

1

1

1

111111

1

1

1

0

1

2

1

1

0

1

1

1

2

1

1
0

1

-

1

each

0

2

-

Photo eyepiece

r

Filter

I

Immersion oil, bottled

1

VinyTdust cover

N

F

K3.3X

0

11111

0

1

II.

NOMENCLATURE

The Model BHT consists

A

photo below.

requirements.

Revolving

Objective

wide variety of combinations, standard or optional, is available according to your

of

various components and interchangeable accessories as shown in the

Observation tube

Microscope stand

"I

Stage

Condenser

Base

Halogen lamp

holder

-

-

Ill.

ASSEMBLY

This picture illustrates the sequential procedure of assembly. The numbers indicate the
order of assembly of various components. Remove dust caps before mounting components.
Take care to keep all glass surfaces clean, and avoid scratching the glass surface.

NOTE:

For numbers

O

@

and 0 please refer to explanations in detail on the next page.

Eyepiece

Condenser clamping screw

Condenser

(The

N.A.

should

scale

face

engraved on the con-

denser

microscope front.)

the

Microscope stand

Halogen bulb

Line cord

0

Outlet

Explanations in detail

@

Mounting the stage

1)

Loosen the stage clamping screw @ by

rotating counterclockwise. (Fig.

2)

Insert the stage into the mounting dove­tail of the microscope stand slowly and
lock with clamping screw.

@

Mounting the revolving nosepiece

1)

L-oosen the nosepiece clamping screw

(Fig.

2)

2)

Aligning the nosepiece dovetail slide to

@

,

the mounting block
piece slowly all the way.

NOTE:

Do not tilt or rock the nose­piece while inserting into the
mounting block.

push in the nose-

1)

a.

Fig.

1

@

Mounting the observation tube

1)

Loosen the clamping knob @ fully. Pull
spring-loaded clamping knob
will cause the locating pin

3)

(Fig.
screw further until the pin withdraws.

2)

With clamping knob @ pulled out, insert

the circular dovetail of the observation
tube into the ring dovetail.

3)

Tighten the clamping knob.

If the pin does not, loosen the

@

@

.

This

to withdraw.

Fig.

3