BMS C2 Operation Instruction Manual

Brand: BMS

Model: C2

Category: Microscopes

Type: Operation Instruction Manual

This manual is written for BMS C2 BIOLOGICAL. For safety and for exerting the best

performance, making you familiar with the instrument entirely, it is strongly recommended that

you read this manual carefully before using the microscope. For the further reference, please place

this manual in a position where nearby the worktable and fetched easily.

BMS C2 Microscope

Operation Instruction

OVERVIEW

Follow the Instruction Below

1. Purpose

This microscope is only applied for microscopy observation, not for others.

2. Never disassemble

Disassembly may cause electrical shocks and/or severe damage to the instrument. Never

disassemble any part than that mentioned on this manual. If you notice any malfunction,

contact your nearest representative. Fungicide is used in the eyepiece tube, eyepieces

and objectives. If you should disassemble them and touch the parts inside, you may get a

rash with the fungicide

3. Heat at the Light Source

The light bulb and the lamp housing will be very hot after long hour working. Never touch

them by hands until they cool down, otherwise your hands will be hurt.

4. Power supply

Pay attention to the specifications of power supply, which marked on the microscope base.

The power supply must comply with the specifications; otherwise the microscope will be

damaged.

5. Changing the Light bulb

Before replacing the light bulb with new one, first turn off the light switch on the

microscope base, then take off the power plug and wait until the bulb cools down. Only

halogen bulb 6V/20W is workable on this microscope, never use other bulbs.

6. Storage

1) Before moving the microscope, turn off the light switch and take off the power plug.

2) Usually, following environment is required: lndoor temperature: 0 degree ~40 degree

Max relative humidity: 85%

3) After use, cover the microscope with the dust-cover provided, and store it in a dry and

clean place free from moisture to prevent rust.

7. Handle Gently

Microscope is a precision instrument. Handle it gently. Strong shocks and forcible

operations will cause severe damage to the instrument.

Assembly

Note

Take care on the following points when installing the microscope.

z Be careful not to get your fingers caught under the microscope.

z Place the microscope in the following environment.

Room temperature: 0℃ to 40℃

Relative humidity: max.85%

High temperature and humidity will cause molds, dew formation and damage.

z Avoid placing the microscope under the direct sunlight or the room light. Bright

circumstances deteriorate the specimen image.

z Avoid placing the microscope in dusty surroundings. When the microscope is not in

use, cover it up with a vinyl cover.

z Place the microscope flat on the place free of vibration.

 Lamp

Note

z Lamp and vents are very hot during and right after the illumination. Be careful not

to get yourself burnt.

z Use the Halogen lamp bulb only. If the bulb burn out, contact your representative

for the replacement.

z Do not touch the glass part of the bulb by bare hands. Wear gloves or keep the

protecting cover on the bulb during installation. Wipe off any fingerprints or stains

using clean cloth moistened with pure alcohol since those burned into the bulb

surface will decrease brightness and cause lamp breakage.

z Pull up the lamp cover clamp knob and remove the cover. Turn out the

heat-resisting plate and securely insert the lamp's contact pins into the socket

holes. Return the plate and the cover to their original place

 Eyepiece tube

Mount the eyepiece tube onto the arm, and tighten the clamp screw.

 Eyepieces

Insert the eyepieces into the eyepiece sleeves, and tighten the clamp screw.

 Objectives

Lower the stage to its full limit, then screw the objectives into the revolving nosepiece.

 Daylight Filter

Press the filter into the bottom of the auxiliary lens, and then insert the auxiliary lens into

the bottom of the condenser.

The phase-contrast observation GIF filter can be placed directly on the field lens unit

whenever necessary.

 Condenser

Mount the condenser on the condenser holder with the aperture control lever facing

forward. Secure with the clamp screw

 Power Cord

Turn OFF the power switch before connecting the power cord.

(Turn the Brightness control dial toward the rear of the microscope till the limit.)

Insert gently the cable-plug into the socket built-in the microscope base, then insert the

power plug into the socket of power supply.

MICROSCOPY

1. Lamp illumination

Turn the brightness control dial forward to achieve the desired

brightness.

2. Specimen Mounting

Mounting with the cover glass facing upwards.

3. Focusing with 10X Objectives

Choose the objective 4X or 10X. Turn the coarse focusing

knob to get the objective focused on the slide and then turn

the fine focus adjustment knob to get the image sharp and

clear.

4.Interpupillary Distance Adjustment

Adjust the interpupillary distance of binocular until the

right-left field of view can be composed one.

5. Eyepiece Diopter Adjustment

Firstly, observe at right tube with right eye, adjust coarse-fine

focusing knob to image clearly.

Secondly, observe at left tube with left eye, adjust the diopter

control 1 to image clearly.

6. Objective Selection

Rotate the revolving nosepiece to the desired objective

magnification, assuring it click-stops into position.

7. Aperture Diaphragm Adjustment

(This diaphragm is designed for numerical aperture

adjustment, not brightness.)

General, a good image of sufficient contrast can be achieved

with the aperture diaphragm stopped down to approximately

70-80% of the objective’s numerical aperture. To observe the

diaphragm image, remove the eyepiece and look down the

open tube at the exit pupil of the objective.

8. Field Diaphragm Adjustment

(For the field lens unit with Field Diaphragm)

Stop down the field diaphragm until the illuminated area

closely circumscribes the eyepiece viewfield.

The field diaphragm is used to control the specimen’s

illuminated area relative to the microscope viewfield. If it is

opened to a larger aperture than necessary, extraneous light

will enter the viewfield, reducing image quality and contrast.

9. Oil-immersion Observation

When using the 100X objectives, it is an oil-immersion type

requiring the application of immersion oil between its lens tip

and the coverglass.

If air bubbles enter the oil layer, a poor image will result. To

remove the air bubbles, rotate the nosepiece several times, or

apply an additional drop of oil.

After completing oil-immersion observation, be sure to clean

the front lens of the objective and any other parts coated with

oil.

Troubleshooting Tables

If difficulties should be encountered in the course of operation, and no major instrument malfunctions can

initially be detected, please recheck the symptoms, referring to the tables provided below, before contacting

your service representative.

1. Optical

Symptoms Causes Countermeasures

Revolving nosepiece not in click-stop

position(objective not centered optical path)

Revolve to click-stop position

(swing the objective correctly into

the optical path)

Field diaphragm not centered Centering

Field diaphragm closed too far Open properly

Darkness at the

periphery, or uneven

viewfield brightness. Dirt or dust on the lens (condenser,

objective, eyepiece, slide) Cleaning

Dirt or dust on the lens (condenser,

objective, eyepiece, slide) Cleaning

Dirt or dust on the slide. Cleaning

Dirt or dust in the

viewfield Condenser position too low Correct positioning

No coverglass attached to the slide Attach coverglass

Coverglass too thick or thin Use coverglass of specified

thickness(0.17mm)

Slide upside-down. Turn over the slide

Immersion oil on dry system objective

(especially 40X) Cleaning

Dirt or dust on the lens (condenser,

objective, eyepiece, slide) Cleaning

No immersion oil used on immersion system

objective Use immersion oil

Air bubbles in immersion oil Remove bubbles

Condenser aperture and field diaphragm

opened too far Close properly

Dirt or dust on the entrance lens. Cleaning

Condenser aperture closed too far Open properly

Poor image quality

(low resolution or

contrast)

Condenser position too low Raise to the position where the

diaphragm image is in focus

Revolving nosepiece not in click-stop

position Revolve to click-stop position

Image dark on one side

Floating specimen Fasten securely

Specimen rises from stage surface Place it stable Image shifts during

focus Revolving nosepiece not in click-stop

position Revolve to click-stop position

Image tinged yellow Daylight filter not used Use daylight filter

Symptoms Causes Countermeasures

Condenser aperture too small Readjust aperture

Condenser position too low Correct positioning

Insufficient illumination

brightness Dirt or dust on the lens (condenser,

objective, eyepiece, slide) Cleaning

2. Mechanical

Symptoms Causes Countermeasures

Specimen image

movement unsmooth Mechanical stage not securely fastened Tighten all fasteners

Slide upside-down Turn slide over Image not focusable

with high power

objectives Coverglass too thick Use coverglass of specified

thickness(0.17mm)

Slide upside-down Turn slide over High power objective

contacts slide when

changed-over from low

power Coverglass too thick Use coverglass of specified

thickness(0.17mm)

Specimen image

movement unsmooth Mechanical stage not securely fastened Tighten all fasteners

Binocular image not

integrated Interpupillary distance not correctly adjusted Adjustment

Incorrect diopter adjustment Correct adjustment

Excessive eye fatigue Inadequate brightness or illumination Adjust brightness with control

dial

3. Electrical

Symptoms Causes Countermeasures

No electrical power Check power cord connection

Lamp bulb not inserted Insert correctly

Lamp does not light

when switched ON Lamp failure

Replacement

If the same symptom occurs after

replacing the lamp, contact your

dealer

Unspecified lamp bulb used Replace with specified lamp bulb

Insufficient illumination

brightness Voltage too low Increase brightness with control

dial

Unstable lamp

brightness Lamp bulb about to fail Replacement

Lamp bulb not correctly inserted into socket Check for positive connection

Care and Maintenance

1. Cleaning Lenses

z Dust is best removed with a soft brush or gauze.

z More persistent dirt, such as fingerprints, grease and oil, may be removed with soft cotton, lens tissue, or

gauze lightly moistened with absolute alcohol (ethyl alcohol or methyl alcohol).

z To clean immersion oil off the oil-immersion type objective, use lens tissue, soft cotton or gauze lightly

moistened with petroleum benzine only.

If petroleum benzene is not available, use methyl alcohol. In this case, you need to wipe three or four times

because the detergency of the methyl alcohol is somewhat weak.

z Do not use petroleum benzine to clean the entrance lens at the bottom of the eyepiece tube or prism

surfaces inside the eyepiece tube.

z Absolute alcohol and petroleum benzine are quite inflammable. Take great care when handling them and

when setting the power switch on and off. Be very careful with fire

2. Cleaning Painted or Plastic Surfaces

z Avoid use of any organic solvents (such as alcohol, ether, thinner, etc.) to clean the painted or plastic

surfaces of the instrument. We recommend the use of silicon cloth. More persistent did may be cleaned with

mild detergent solution.

z Printed plastic surfaces should be cleaned only by soft cloth moistened with water.

3. When Not in Use

z When the microscope is not in use, cover it up with a vinyl cover, and store it in a dry place not subject to

mold.

z We especially recommend that the objectives and eyepieces be kept in a container (such as a

desiccators )with desiccant in it

4. Periodical Inspection

z To maintain the performance of the microscope, periodical inspection is recommended. (Contact your

nearest representative for details.)

BMS C2 Operation Instruction Manual

Brand: BMS

Model: C2

Category: Microscopes

Type: Operation Instruction Manual

Download PDF

report

BMS C2 Operation Instruction Manual

BMS C2 Operation Instruction Manual

Other documents