Olympus BHT User Manual
MOdCI
BHT
This instruction
manual
has
been
written
for
the
use
of theOlympus
System
Microscope
Model
BHT.
lt is
recommended
thatyou
read the
manual carefully
in
orderto
familiarize
yourself
fully
with the
use
of the
microscope,
so
that
you
can
obtain
optimum
performance
from
it.
IMPORTANT
Observe
the
following
points
carefully:
I
Operation
1.
Always
handle the
microscope
with
the care
it
deserves,
and
avoid abrupt
motions.
2.
Avoid
the
use and
maintenance
of the microscope
in
direct sunlight,
high temperature
and
humidity,
dust
and
vibration.
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 simultaneous-
ly,
as this
will cause
damage.)
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.
I
Maintenance
1.
Lenses
must always
be
kept
clean.
Carefully
wipe
off
oil or
fingerprints
deposited
on the
lens surfaces
with
gauze
moistened
with a
small
amount
of
xylene, alcohol
or
ether.
2.
Do not
use
organic solutions
to
wipe the surfaces
of
various
components.
Plastic
parts,
especially,
should
be cleaned
with
neutral
detergent.
3.
Never
disassemble
the
microscope
for
repair.
Only
authorized
Olympus
service
personnel
should
make
repairs.
4. The
microscope
should
be
covered
with the
vinyl
dust cover
provided
and
stored
in
a
place
free
from humidity
and
fungi.
For extended storage
it is
recommended
to
keep objectives
and
eyepieces in
desiccators,
containing
desiccants such
as
silica
gel.
3.
4.
5.
I.
STANDARD
EOUIPMENT
II . NOM
ENCLATU
R E
III. ASSEM
BLY
IV. IDENTIFICATION
AND FUNCTION
V.
OPE
RATION
A. Switching
on the Light Source
CONTENTS
VARIOUS COMPONENTS
r'* ooir;.r;;;
OF
2
3
4
6
9
Voltage
Adjustment and
Light Intensity
Placement of
a
Specimen
Slide
la"""r
classl
fStadl
Observation
Tube
1.
Interpupillary Distance
Adjustment
2.
Diopter
Adjustment
3.
Light
Path
Selector
Condenser
Adjustment
1.
Condenser
Centration
Field lris Di
m
Aperture
lris Diaphragm
Focusing Adjustment
1. Tension
of
Coarse
Adjustment
Knobs
and
Use of Rubber
Cap
for Fine Adjustment
Knob
2.
Pre-Focusing Lever
3. Adjustment
of Stage Block
Height
F. Use
of
lmmersion Objectives
G.
Photomicrography
VI.
OPTICAL
DATA
.
.'. .
VII.
TROUBLESHOOTING
B.
10
11
C.
12
D.
13
E.
14
16
17
t.
STANDARD
EOUIPMENT
Component
Model
BHT-11
1
BHT-112
BHT-312
Microscope
stand
BHT-F
1
1
1
Line
cord
UYCP
1
1
1
Observation
tubes
Binocular
tube
BH2-8130
1
1
0
Trinocular
tube
BH2-TR30
0
0
1
Ouintuple
revolving
nosepiece
BH2-5RE
1
1
1
Square
mechanical
stage
with
right-hand
BH2-SVR
low
drive
coaxial
controls
1
1
1
Condensers
Abbe
condenser
BH2-CD
1
1
0
Swing-outcondenser
BH2-SC
0
0
1
Halogen
lamP
holder
LS-20H
1
1
1
Halogen
bulbs
6V20WHAL
2
2
2
Objectives
D
Ach.
4X,
D Ach.
10X,
D Ach.
40X,
D
Ach.
100X
(oil)
1
each
0
0
D
Plan 4X,
D
Plan 10X,
D
Plan
40X
D
Plan 100X
(oil)
0
1
each
1
each
Eyepieces
WHK1OX
2
2
2
Photo
eyepiece
NFKS'3X
Filter
KB-4
0
0
1
1
1
1
lmmersion
oil,
bottled
Vinyl
dust
cover
Allen
wrench
1
1
1
1
1
1
1
1
1
II. NOM
ENCLATURE
The
Model
BHT
consists
of
various
components
and
interchangeable
accessories
as
shown
in
the
photo
below. A
wide variety of combinations,
standard
or
optional,
isavailable
according
to
your
req u i
re
men ts.
Eyepiece
Halogen
lamp
holder
Observation
tube
Microscope
stand
Revolving
nosepiece
III.
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
@
@
and @
please
refer
to
explanations
in
detail
on
the
next
page'
Specimen
holder
Observation
tube
clamping
screw
Clamping
scre\n
s
Condenser
clamPi
ng
screw
NosePiece
%
I8..,,
Halogen
bulb
0
riri
@
-5l
Halogen
lamp
- +l
holcier
Condenser
(The
N-A-
scale
engraved
on
the
con-
denser
shou
ld
face
the
microscoPe
front.)
Microscope
stand
;r
--4--Ta-
To AC
t-inercorO
@
outlet
Observation
tube
Circular
dovetai
I
mount
@
Explanations
in
detail
Mounting
the
stage
1) Loosen the stage
clamping
screw
O
Ov
rotating counterclockwise.
(Fig.
1)
2)
Insert
the stage
into the
mounting
dove-
tail
of
the
microscope
stand slowly and
lock with
clamping screw.
Mounting
the
revolving
nosepiece
1)
L-oosen
the
nosepiece
clamping
screw
O.
(Fig.2)
2) Aligning
the nosepiece dovetail
slide to
the mounting
block @,
push
in
the
nose-
piece
slowly all the way.
NOTE:
Do not
tilt
or rock
the nose-
piece
while inserting
into
the
mountinq
block.
Mounting
the observation
tube
1) Loosen
the clamping
knob
e
tutty.
pull
spring-loaded
clamping
knob
O
. This
will
cause
the locating
pin
@
to
withdraw.
(Fig.
3) lf
the
pin
does
not,
loosen
the
screw
further
until
the
pin
withoraws.
2)
Witfr clamping
knob
e
pulled
out,
insert
the
circular
dovetail
of
the
observation
tube
into
the ring
dovetail.
3) Tighten
the
clamping
knob.
Fis.
1
@
@
Fig.2
Fig.3
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