Olympus BHS User manual

This instruction manual has been written for the use of the Olympus System Microscope Model
BHS. 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
Observe the following points:
m Operation
Always handle the microscope with the care it deserves, and avoid abrupt motions.
Avoid
the use 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.
m 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.
Do not use organic solutions to wipe the surfaces of various components. Plastic parts,
especially, should be cleaned with neutral detergent.
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
free from humidity.

VI.
VII.
STANDARD EQUIPMENT
NOMENCLATURE
ASSEMBLY
IDENTIFICATION AND FUNCTION OF VARIOUS COMPONENTS
OPERATION
CONTENTS
ο σ
F
WN
A. Switching on the Light Source
E
G
OPTICAL DATA
TROUBLESHOOTING . .
Voltage Adjustment and Light Intensity
Placement of a Specimen Slide
二 10
Specimen Slide
Observation Tube
1. Interpupillary Distance Adjustment
2. Diopter Adjustment
3. Light Path Selector
Condenser Adjustment
1. Condenser Centration
Focusing Adjustment
1. Tension of Coarse Adjustment Knobs and Fine Adjustment
Use of Rubber Cap for Fine Adjustment Knob
2. Pre-Focusing Lever
3. Adjustment of Stage Block Height
Use of Immersion Objectives
Photomicrography

I. STANDARD EQUIPMENT
Model
Component
BHS-112 |BHS-113 |BHS-312 | BHS-313
Microscope stand BHS-F 1 1 1 1
Binocular
ES BH2-B130 1 1 0 0
Observation tubes
Trinocular
tube BH2-TR30 0 0 1 1
Revolving Ouintuple BH2-5RE 1 0 1 0
Sextuple BH2-6RE 0 1 0 1
Square mechanical stage with
right-hand low drive coaxial BH2-SVR 1 1 1 1
controls
Swing-out
cöndenser BH2-SC 1 1 1 1
Condensers
Achromatic/
Aplanatic BH2-AAC 0 1 0 1
condenser
Halogen lamp housing BHS-LSH 1 1 1 1
Halogen bulbs 12V100WHAL-L 2 2 2 2
DPlan 4X,
D Plan 10X,
D Plan 20X, Teach 0 Teach 0
D Plan 40X,
D Plan 100X (oil)
Objectives
S Plan 4X,
S Plan 10X,
S Plan 20X, 0 Teach 0 Teach
S Plan 40X,
S Plan 100X (oil)
Eyepieces WHK10X 2 2 2 2
Photo eyepiece NFK3.3X 0 0 1 1
Line cord UYCP 1 1 1 1
Filter KB-4 1 1 1 1
Immersion oil, bottled 1 1 1 1
Vinyl dust cover 1 1 1 1
Allen wrench 1 1 1 1

|. NOMENCLATURE
The Model BHS consists of various components and interchangeable accessories as shown in the
photo below. A wide variety of combinations, standard or optional, is available according to your
requirements.
Eyepiece
Observation tube
Microscope stand
For biological use.
Revolving nosepiece
Halogen lamp
Objective housing
Condenser
Base
Em

LA 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 surfaces.
NOTE: For numbers @, @, @ and @ please refer to explanations in detail on the next
page.
Eyepiece
Nosepiece
y
4
Observation tube
B Objective
á ==7 Circular dovetail mount
Specimen
holder o 3 .
en © Observation tube clamping screw
em Nosepiece clamping screw (on the opposite side)
© mtos.
Condenser clamping screw
Stage
mounting
Halogen
bulb
Halogen
lamp
dovetail
一
一
生
@
0
housing
AZ
2
Li
Condenser — m
>
Collector
lens
Clamping
(The
N.A.
scale
ρα
engraved on the con- Microscope stand a
denser
should
face
the
To
AC
microscope
front.)
es
Line cord © outlet

= Explanations in detail
@ Mounting the halogen bulb
1) Releasing the bulb clamping levers @ of
the collector lens @ in the direction of
the arrow, insert two contact pins of the
halogen bulb into the socket ©. (Fig. 1)
(Recommended to use a glove or gauze to
handle the halogen bulb.)
2) Secure the bulb in position with the two
levers.
* Before use, wipe off any fingerprints or
stains on the bulb.
© Mounting the stage
1) Loosen the stage clamping screw © by
rotating counterclockwise. (Fig. 2)
2) Insert the stage into the mounting dove-
tail of the microscope stand slowly and
lock with clamping screw.
@ Mounting the revolving nosepiece
1) Loosen the nosepiece clamping screw ©.
(Fig. 3)
2) Aligning the nosepiece dovetail slide to
the mounting block ©, push in the nose-
piece slowly all the way.
© Mounting the observation tube
1) Loosen the clamping knob © fully. Pull
spring-loaded clamping knob ©. This
will cause the locating pin @ to withdraw.
(Fig. 4) If the pin does not, loosen the
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.

IV. IDENTIFICATION AND FUNCTION OF VARIOUS COMPONENTS
Light path selector knob
The knob can be operated
in 3 positions to deflect the
light as desired.
Tension adjustment ring
Clockwise rotation increases
coarse adjustment tension.
Coarse
Specimen holder y adjustment knob
Coarse adjustment
range: 26mm
Stage clamping screw
Loosen
the
screw
and
.
the
stage
can
be
rotated.
Fine
adjustment
knob
- Graduated in increments
Condenser
centering
of
2u.
knobs
Y-axis low drive
control knob
Y excursion range:
Se. Filter mount
Accepts the ND
filter holder
X-axis low drive
control knob
X excursion range:
76mm.
Main switch
ND filter holder*
Filter diameter 45mm.
Voltmeter
Sliding voltage control lever
Voltage lowers as the lever is
pulled toward the microscope
front.
*Do not disengage the ND filter for about a few minutes after the use, in order to give time to
cool. Other filters (e.g. KB-4 provided, etc.) should be inserted into the filter mount at the light
exit on the microscope base.

Photo tube
Diopter adjustment
ring
Condenser height | = |
adjustment knob
Pre-focusing lever
Aperture iris
diaphragm ring
Circuit breaker*
Filter mount
Field iris diaphragm ring
Arrow mark @ — O indicates
increase in diaphragm diameter.
Line cord ==
*This breaker protrudes its central part to cut off the electrical power in case of the dimmer
circuit trouble (due to short circuit, etc.) or over current. To restore the breaker, press the
central part. If the breaker is actuated again, disconnect the line cord from the AC outlet and
contact the Olympus Service Center.

Summary of Putting the Microscope into Operation
Match the voltage selector switch to local mains voltage (page 9).
Switch on the light source (page 9).
Place a specimen slide on the mechanical stage (page 9).
Coarse focus with the 10X objective.
Make interpupillary distance and diopter adjustments (page 11).
Adjust the condenser position (page 12).
Swing in the desired objective.
THT
MOL
BP
Adjust light intensity.
Fine focus.
y. Adjust aperture iris diaphragm and field iris diaphragm (page 12).
Model BHS
Adjustment of Illumination System for Various Objective Powers
}
| Condenser
Objective ic.
Lu FORTS Abbe Swing-out Low power
magnification čondensér condenser condenser condenser
BH2-AAC BH2-CD BH2-SC BH2-UL-C
1X
2x
Swing
out
top
Compatible
ax
4x
lens
10X
28% Compatible m
40x
Compatible
Swing
in
top
lens
6&
||
|...
100X
*
*N.A. is somewhat low, but still compatible with a 100X objective.
**To obtain better illumination for photomicrography with a 2X objective, it is recom-
mended to use the ultra low condenser BH2-ULC, optionally available.
(Cut off this page at dotted line and put it on the wall near the microscope for use as a reminder of micro-
scopic procedure.)
OLYMPUS