Motic SMZ-171 BL, SMZ-171TL Instruction Manual

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We are constantly endeavoring to improve our instruments and to adapt them to the requirements of

modern research techniques and testing methods. This involves modification to the mechanical

structure and optical design of our instruments.

Therefore, all descriptions and illustrations in this instruction manual, including all specifications are

subject to change without notice.

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TABLE OF CONTENTS

Section Page

1. INTRODUCTION 3

1.1 Nomenclature 4

2. UNPACKING AND ASSEMBLING THE MICROSCOPE 5

2.1 Unpacking the Microscope 5

2.2 Assembling the Microscope 5

3. MICROSCOPE ALIGNMENT AND OPERATION 6

3.1 Interpupillary Distance 6

3.2 Focusing the Microscope 6

3.3 Magnification and Working Distance 7

3.4 Changing the Bulb 7

4. KNOWING YOUR MICROSCOPE 9

4.1 Stereo Body with Binocular or Trinocular Head 9

4.2 Stand 10

4.3 External Illuminator 13

4.4 Eyepieces and Auxiliary Objectives 13

4.5 Other Accessories 14

5. CLEANING AND CARING FOR THE MICROSCOPE 16

5.1 Protection against Dust 16

5.2 Protection against Water and Moisture 16

5.3 Cleaning 16

5.4 Moving the Microscope 17

5.5 Electrical Parts of the Microscope 17

APPENDIX 1: SMZ-171 SPECIFICATIONS 18
APPENDIX 2: SMZ-171OPTICAL DATA 19

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1. INTRODUCTION

The Motic SMZ-171 series stereomicroscopes are high performance Greenough design

stereomicroscopes with continuous zoom ranges of 6.7:1. The microscopes in this series allow

continuous variable magnification between 7.5X-50X, while total magnification varies from 2.25X to

200X depending on the eyepieces and auxiliary objectives used. With the bilateral zoom knobs, users

are able to adjust magnification while the microscope remains perfectly parfocal.

The SMZ-171 is the ideal instruments for examining objects of industrial, biological, medical or

educational natures. Optional with ESD feature, with head and stand.

Abbr.: ESD means Electro-Static discharge.

SMZ-171 Standard Configuration and Parameters:

Details please refer to the Appendix 1 SMZ-171 Specifications.

Model Eyepieces

Auxiliary

Objectives

Zoom
factor

Magnification

Working

Distance

Lens

Tubes

SMZ-171B

N-WF10X

(Ø23)

Optional 1:6.7 7.5X-50X 110mm

Binocular

SMZ-171T Trinocular

There are at the moment two models in the series: the SMZ-171B which is equipped with a binocular
system, and the SMZ-171T which is equipped with a trinocular system allowing for the attachment of

CCD and digital camera devices.

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1.1 Nomenclature

SMZ-171 BL (Fig.1)

SMZ-171 TL (with ESD) (Fig.2)

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2. UNPACKING AND ASSEMBLING THE MICROSCOPE

2.1 Unpacking the Microscope

The components for SMZ-171 stereomicroscopes are shipped detached for protection. Open the

Styrofoam packing with care and do not leave any components attached to the packing being removed.

Do not discard any of the packing materials until all of the components have been identified. If any

damage occurs during transit, contact both the carrier and your supplier immediately.

2.2 Assembling the Microscope

2.2.1 When handling the components, especially the optical parts, avoid touching any lens surfaces

with bare hands or fingers as fingerprints and grease stains affect image quality.

2.2.2 After unpacking the stand, put it on a stable and flat table. Loosen the locking screw of the

head holder, adjust the height of the head holder and lock the locking screw again. Make

sure that the support collar is secured firmly below the head holder along the vertical post.

This is important as this collar keeps the microscope from sliding down the column.

2.2.3 The head holder should rest on the support collar and both the head holder locking screw and

the collar locking screw should be tightened.

2.3.4 Put the stereo body onto the head holder and lock it using the locking screw located on the

right hand side of the head holder. To maintain the best stability, you are advised to lock the

screw on the left hand side of the head holder as well.

2.3.5 After removing the wrapping papers and packing materials around the eyepieces and other

optical parts (avoid touching the lens surfaces), carefully place the eyepieces into the eyepiece

tubes and secure them using the locking screws. If necessary, loosen the locking screws before

putting in the eyepieces.

2.3.6 Before turning on the power, plug the illumination power cord into the socket at the top of the

column. Next, plug the power cord of the main frame into the local power supply. Note: before

plugging in and turning on the power, make sure that the operation voltage of the
microscope matches the voltage of the local power supply.

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3. MICROSCOPE ALIGNMENT AND OPERATION

3.1 Interpupillary Distance

Adjust the two eyepiece tubes until only one circular field can be seen through the two eyepieces. If two

separate circles appear, the interpupillary distance is too large; if two overlapping circles appear, the

interpupillary distance is too small. The eyepiece tube allows a flexible adjustment of the interpupillary

distance between 48 and 75mm.

3.2 Focusing the Microscope

To focus the sample, use the focusing knobs located on both sides of the head holder (Fig.3). By

turning these knobs, the microscope can be moved up or down a certain distance to focus the sample.

This movement is enabled by a “rack and pinion” mechanism. The tension of the focusing knob can

be adjusted using the tension knob located in the inner region of the focusing knob on the right (Fig.4).

If a sharp focus cannot be achieved using this knob, release the locking screw and support collar and

move the whole microscope up or down.

(Fig.3) (Fig.4)

3.2.1 Using the focusing knob, focus the sample using the highest magnification strength. If the

sample cannot be brought into focus, adjust the height of the microscope along the column.

Remember to tighten the locking screw and support collar after adjusting the height of the

microscope.

3.2.2 Turn the zoom to the highest magnification. Adjust the focusing knob until a clear and sharp

image is obtained.