OPTO-EDU A13.2603 User manual

A13.26 03

Metallurgical Microscope

Instruction Manual

To ensure the safety and obtain satisfactory performance, please study this instruction manual thoroughly bef

ore start to use the instrument.

CONTENTS

1. Specifications .................................................................................................... 2

2. Installation & Operation .............................................................................. 3

3. Maintenance ...................................................................................................... 4

4. Trouble Shooting ............................................................................................... 6

Fig.1 MIT 100 binocular metallurgical microscope

○

1 Seidentopf Binocular head ○

2 E-pi Unit ○

3 Screw C

○

4 Eyepiece ○

5 Screw B ○

6 Nosepiece

○

7 Objectives ○

8 Stage Plate ○

9 Stage

○

10 Base ○

11 Lamp house ○

12 Aperture Diaphragm Ring

○

13 Spot ○

14 Screw A ○

15 Coarse and fine focusing knobs

○

16 Stage adjusting knobs ○

17 Potentiometer

Fig.2 MIT 100 trinocular metallurgical microscope

Purpose:

MIT series upright metallurgical microscope is designed for factories, universities and relative

research institutes. The series microscope with original style, steady structure, convenient

operation and clear image is suitable for observing various metallurgical specimens and IT

material.

1. Specifications

1.1 Total magnifications

Objective

Eyepiece

5X 10X

20X

50X

10X 50X 100X 200X 500X

10X (reticule) 50X 100X 200X 500X

12.5X (optional) 62.5X 125X

250X 625X

16X (optional) 80X 160X 320X 800X

1.2 Objectives (used with 10X eyepiece)

LPL

Objective

Numerical

Aperture

(N.A.)

Objective

Field

(ф18)

Definition

(μm)

Working

Distance

(mm)

5X 0.13 3.6mm 2.58μm 16.07

10X 0.25 1.8mm 1.34μm 18.48

20X (s) 0.40 0.9mm 0.84μm 8.35

50X (s) 0.70 1mm 0.48μm 1.95

1.3 Mechanical tube length: 160mm,

1.4 Conjugate distance: Infinity

1.5 Head: Seidentopf Binocular or Trinocualr, Inclined 30°, Rotable 360°,

Anti-fungal systems. Interpupillary Adjustable Distance Is 48-75mm,

Diopter adjustable range ±5.

1.6 Nosepiece: Quadplex nosepiece

1.7 Mechanical stage: Size 125mmx115mm

Stage Plate Size: 200mm×140mm

X-Y travel 76mm×35mm

1.8 Focusing systems: Coaxial Coarse and Fine Focusing Knobs, Coarse stroke 22mm,

Fine division 2µm

1.10 Electric components: Input voltage AC100-240V, 47-63Hz

Output voltage DC3-12V

5WLED Warm Lamp

Rotation potentiometer with power switch

Fuse 5A ф5×20

2. Installation & Operation

2.1 Installation

a) Loose the two screws(A), put down the binocular (trinocular) head, then connect the illuminator

with the stand and tighten the two

screws(A).

b) Connect binocular (trinocular)

head with the front of the

illuminator, then tighten the three

screws(B).

c) Connect the power plug of lamp

house with the socket of the base,

and tighten the screws of the socket.

d) Put the eyepiece into the eyepiece tube. Fig.3

2.2 Confirm the voltage is available, then take power.

1) Turn potentiometer, and make the light to the lowest position. Open the power switch, and

adjust the potentiometer to get the available light.

2) Sample placing:

Put the sample onto the stage plate, turn the stage knob to put the sample into the light path.

3) Put 10X objective into light path, turn coarse focusing knob, observe from right eyepiece with

right eye, then turn slowly fine focusing knob to make the image clear after finding image.

4) Put the other objectives into the light path.

5) Interpupillary distance and diopter adjustment

2.3 Interpupillar distance adjustment:

Interpupillar distance is different for

everyone, so interpupillary distance

should be adjusted before using

binocular microscope. Please take the

two eyepiece tubes to turn until the

bright rings observed by two eyes are

in superposition entirely.

○

1 E-pi illuminator unit

○

2 Screw

○

3 Back of lamp house

○

4 Adjusting screw

○

5 Left fine knob

○

6 Left coarse knob

○

7 Tension adjusting ring

○

8 Fuse

○

9 Socket

○

10 Power supply

○

11 Potentiometer

○

12 Right fine knob

○

13 Right coarse knob

3. Maintenance Fig.4

3.1 Clean microscope

3.1.1 Don’t touch the lens with hand, Dust on lens should be cleaned by soft brush or absorbent

cotton or cleaned by absorbent cotton, lens paper with the mixture of alcohol and ether (proportion

1:4).

3.1.2 Alcohol and ether all are burnt early, please take them away from fire. Be careful for turn on

and off power.

3.1.3 Don’t clean painted metal and galvanizing metal with organic solvent such as alcohol, ether

or the mixture of the both. Silicon cloth or soft cleaning preparation is suggested to clean it.

3.1.4 Plastic should be cleaned by soft cloth with clear water.

3.2 Environment of using and placing

3.2.1 Microscope should be used and placed in a cool, dry, non-dust, non-shake and non-corrosive

gases environment.

3.2.2 Microscope should be used in environment of indoor temperature 0°-40°C and maximum

relative humidity 85%.

3.2.3 Removing equipment is suggested to be installed when microscope used in heavy humidity

area to avoid fungus and mist damage instrument.

3.2.4 Please pay attention to prevent microscope from violent shake and vibration in application

and in carrying. Don’t drag it on the surface of worktable to avoid damage to microscope and

worktable.

3.3 Replacement of bulb

3.3.1 Turn off power, and pull out plug.

3.3.2 Wait the bulb become cool.

▲ Please be sure that the bulb is cool, then follow by the nest operations.

3.3.3 Lay aside the microscope reliably, unscrew the knurled thumb screw of the lamp housing

cover on the underside of base.

3.3.4 Pull over the lamp housing cover.

3.3.5 Pull out the bulb should be replaced, hold a new bulb with silk cloth to avoid fingerprint and

dust affect bulb brightness and service life, and insert fully the contact pins into the bulb socket.

3.3.6 Close the lamp housing cover, and screw the knurled thumb screw.

▲After working for above 8 hours continuously, better cut off the microscope about 30 minutes.

3.4 Replacement of fuse

3.4.1 Cut off power of microscope, and pull out the plug.

3.4.2 Unscrew fuse cap in the back of base, take out old fuse.

3.4.3 Replace a new fuse, then screw the fuse cap.

4. Troubleshooting

In the period of using microscope, if there is any trouble occurs, please referring to

the following sheet listed some common troubleshooting resolve them.

Trouble Causation Remedy

Switch on but bulb

dark

Plug is unreliable Plug in again

Bulb is broken Change bulb

Fuse is broken Change fuse

Bulb is flickering or

brightness is

unsteady

Bulb is unstable Insert it again

Bulb is broken Replacing bulb

Brightness of view field

isn’t enough or is

Uneven

Bulb specification doesn’

meet the requirement Replacing bulb

Brightness isn’t adjusted

correctly

Adjust rotation

potentiometer

Objective isn’t in correct

position

Make the objective in

correct position

The size of iris aperture is

too small

Adjust the size of iris

aperture

Brightness of view field

isn’t enough or is

Uneven

Lens (objective,eyepiece,

condenser, light collector)

has dust

Clean it

Position of condenser is

too low Higher condenser

MIT100 Binocular Metallurgical Microscope

This manual suits for next models

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