Meiji Techno EM-30 Series Manuale utente

EM-30 Series

Turret Stereo and Zoom

INSTRUCTION MANUAL

EM-30 Series

Turret Stereo and Zoom

INSTRUCTION MANUAL

Table of Contents

1) Introduction

2-3) Construction of the microscope

4-5) Functions of the microscope

6) Preparing the microscope for use

7-9) Working with the microscope

10-11) Maintenance and cleaning

Introduction

With your purchase of a EM-30 (zoom) stereo

microscope you have chosen for a quality product.

The EM-30 is developed for use at schools, and by

collectors of minerals, stamps etc.

The stereo microscope consists of two separate

microscope tubes which are combined as a unit, in

order to focus them simultaneously on the object.

Each tube has prisms, achromatic objectives and a

wideeld eyepiece in order to obtain a large, at eld

of view. Both eyes are looking at the object under a

dierent angle to reach a deep stereoscopic image.

The maintenance requirement is limited when using

the microscope in a decent manner.

This manual describes the construction of the

microscope, how to use the microscope and

maintenance of the microscope.

EM-30 Series

Turret Stereo and Zoom

INSTRUCTION MANUAL

EM-30 Series

Turret Stereo and Zoom

INSTRUCTION MANUAL

Construction of the Microscope

The names of the several parts are listed below and

are indicated in the picture on the next page:

A) Photo tube with focussing (trinocular models)

B) Carrying Handle

C) Connector indicdent illuminator

D) Focusing knob(s)

E) Intensity controller for incident illumination

F) Stand foot with transmitted illumination

G) Eyepiece

H) Diopter correction

I) Prism housing

J) Zoom knob(s)

K) Objective cover / revolver

L) Incident illumination

M) Intensity controller transmitted illumination

N) Object clip

O) Object plate

EM-30 Series

Turret Stereo and Zoom

INSTRUCTION MANUAL

Functions of the Microscope

The stereo microscope consists of a stand with holder/focusing system, in which the stereo

head is placed and locked with set screw .

Always hold the microscope at its arm and grip when moving it.

Tube

The zoom stereo microscope heads of the EM-30 are equipped with a 45 degrees tube, which

is rotatable over 360 degrees. Each type has a diopter adjustment ring on both eyepiece

tubes.

Optical specications of the MT-30/MT-90 series range

The zoom stereo microscopes of the EM-30 are equipped with 2 zoom objectives and a pair

of wide eld WF10x eyepieces. The stereo microscopes of the EM-30 are equipped with a

revolving nosepiece in which 2 pairs of achromatic objectives are mounted, and a wide eld

WF10x pair of eyepieces. In the tabel below some available models are listed.

Eyepieces Objectives Magnications Execution Tube

WF10x 1x / 3x 10x / 30x binocular 45 degrees

WF10x 2x / 4x 20x / 40x binocular 45 degrees

WF10x 0.7x ~ 4.5x 7x ~ 45x binocular 45 degrees

WF10x 0.7x ~ 4.5x 7x ~ 45x trinocular 45 degrees

10x 100x 1000x

Object stage

The stand is equipped with an object stage with a semi transparent stage plate (O) and 2

object clips (N).

Focusing

With the focusing knobs (D) the object can be sharply focussed.

Magnication adjustment

The zoom stereo microscopes of the EM-30 are equipped with 2 achromatic zoom objectives.

By using the zoom knobs (J) the magnication can be adjusted in a smooth, stepless way.

Magnication adjustment

EM-30 Series

Turret Stereo and Zoom

INSTRUCTION MANUAL

EM-30 Series

Turret Stereo and Zoom

INSTRUCTION MANUAL

The stereo versions(1/3x or 2/4x) are equipped with 2 pairs of achromatic objectives in a

revolving nosepiece (K). By rotating this nosepiece over 180 degrees another magnication

is set. Turn the nosepiece untill it clearly “clicks” into position.

Illumination

The stand is equipped with transmitted and incident LED illumination of 3 Watt. The

illuminators can be used simultaneously. On the side of the foot the transmitted light

intensity can be adjusted with a small wheel (M) (not visible in the picture). At the back of the

base the Intensity controller for incident illumination can be found (E).

EM-30 Series

Turret Stereo and Zoom

INSTRUCTION MANUAL

Preparing the Microscope for Use

Take the stereo microscope out of its packing and put

it on a rm stable table. Connect the power cable to

the mains supply and switch on the microscope. Place

the eyeshades onto the eyepieces. Sit comfortably

down behind the microscope and take a relaxed po-

sition while viewing through the eyepieces (G). The

third (photo) tube of the trinocular models is packed

in the lid of the styrofoam packing. Take it out and

place it onto the microscope.

EM-30 Series

Turret Stereo and Zoom

INSTRUCTION MANUAL

Working with the Microscope

• Place an object onto the stage plate and adjust the height of the holder randomly with

the focussing knobs (D) at the backside of the stand.

• Set both diopter adjustment rings(H) to the “O” position

• Adjust the interpupillary distance by moving both prism housings (I) towards each

other until one round image is seen with both eyes.

Setting the eyepieces in order to have a sharp image over the complete zoom range

• Set the magnication at the highest position by means of the zoom knob (J) and

sharply focus on a at specimen.

• Now bring the magnication down to the lowest position.

• First correct the sharpness with only the left hand diopter adjustment ring (H), and

than for the right hand one.

Photo and video

Taking pictures with an normal or digital SLR camera with the trinocular zoom types is done

with the help of microscope adapter set (optional).

One can adjust the height of the tube of the trinocular models by turning the ring of the

tube in order to reach the same focus point between the the eyepieces and the photo tube.

For showing images on a monitor or PC, by means of a CCD or CMOS camera, one needs an

optional C-mount adapter . Having the same focal point between eyepieces and the screen is

reached by following above mentioned procedure.

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