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EM-20 

Series

Turret Stereo

INSTRUCTION MANUAL

Maintenance and Cleaning

Always place the dustcover over the microscope after use. Keep the eyepiece 

and objectives always mounted on the microscope to avoid dust entering  the 

instrument.

Cleaning the optics 

When the eyepiece lens is dirty it can be cleaned by wiping a piece of lens paper 

over the surface (circular movements). When this does not help put a drop of 

xylol or alcohol on the lens paper. Never put xylol or alcohol directly on the lens!

When dirt is clearly visible in the field of view it resides on the lowest lens of the 

eyepiece. By using the Allen-key the eyepiece can be removed from the tube. 

Clean the outside of the lens.

In case there is still dust visible please check if the dust is in the eyepiece by 

turning it. If this is the case remove the lowest lens carefully from the eyepiece 

and clean it. 

Caution 

Cleaning cloths containing plastic fibers can damage the coating of the

lenses!

Summary of Contents for EM-20 Series

Page 1: ...EM 20 Series Turret Stereo INSTRUCTION MANUAL...

Page 2: ...ereo 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 Mai...

Page 3: ...focus them simultaneously on the object Each tube has prisms achromatic objectives and a widefield eyepiece in order to obtain a large flat field of view Both eyes are looking at the object under a di...

Page 4: ...elow and are indicated in the picture on the next page A Eyeshade B Diopter adjustment C Revolver objective changer D Illumination adjustment E Object clip F Stage plate G Stand foot with built in ill...

Page 5: ...EM 20 Series Turret Stereo INSTRUCTION MANUAL A B C D E F G H I K L N M I...

Page 6: ...a small screw Object stage The EM 20 stereo microscopes are equipped with an transparent object stage and 2 object clips All models have a transmitted and a incident LED illumination Focusing With the...

Page 7: ...lluminators can be adjusted in intensity and both illuminations can be used simultaneously With the switch I the illuminations can be switch IN and OUT Tension adjustment When the system lowers itself...

Page 8: ...s packing and put it on a firm stable table Insert the plug of the power supply adapter into the mains supply and switch on the illumination with the On off switch I and place the eyeshades onto the e...

Page 9: ...ther until one round image is seen with both eyes Focus the specimen by means of the focusing knobs K on both sides of the holder For normal observation both tubes should have the same length but to a...

Page 10: ...n this does not help put a drop of xylol or alcohol on the lens paper Never put xylol or alcohol directly on the lens When dirt is clearly visible in the field of view it resides on the lowest lens of...

Page 11: ...ger to the mains supply The first charging will take about 20 hours to reach full capacity Exchanging the batteries Caution Always remove the power adapter from the mains supply before changing the bu...

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