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OSE-42-BA-e-1810 

Before use 

 

1.1  General notes 

 
You must open the packaging carefully, to make sure that none of the accessories in 
the packaging fall on the floor and get broken. 
 
In  general,  microscopes  should  always  be  handled  carefully  because  they  are 
sensitive  precision  instruments.  When  using  or  transporting  the  microscope  it  is 
particularly  important  to  avoid  abrupt  movements,  as  this  may  damage  the  optical 
components. 
 
You  should  also  avoid  getting  dirt  or  finger  prints  on  the  lens  surface,  because  in 
most cases this will reduce image clarity. 
 
To maintain the performance of the microscope, it must never be disassembled. So 
components  such  as  lenses  and  other  optical  elements  should  be  left  as  they  were 
before use. Also the electrical parts in the base of the device must not be tampered 
with, as in this area there is an additional risk of triggering an electric shock. 

 
 

1.2  Notes on the electrical system

 

 

 
Before connecting to a mains power supply, you must make sure that you are using 
the  correct  input  voltage.  The  mains  cable  supplied  has  an  external  power  supply. 
The  necessary  values  are  shown  on  this  power  supply.  If  you  do  not  comply  with 
these specifications, then fires or other damage to the device could occur. 
 
The lighting switches must also be switched off before the mains cable is connected. 
In this way you will avoid triggering an electric shock. 
 
If you are using an extension cable, then the mains cable you use must be earthed. 
 
When carrying out any procedures whereby you come into contact with the electrical 
system of the device, such as, for example, changing the bulb, only carry out these 
procedures when the power is disconnected. 
 
 

 
The  rechargeable  batteries  must  be  replaced  by  qualified 
electricians only. 
 

 

 

 

Summary of Contents for OSE 421

Page 1: ...N Sohn GmbH Ziegelei 1 D 72336 Balingen E mail info kern sohn com Tel 49 0 7433 9933 0 Fax 49 0 7433 9933 149 Internet www kern sohn com User instructions Stereo microscope KERN OSE 42 OSE 421 OSE 422...

Page 2: ......

Page 3: ...Assembly 8 5 Operation and functionality 10 5 1 Getting started 10 5 2 Adjusting the interpupillary distance 10 5 3 Adjusting the magnification 10 5 4 Dioptre adjustment and focussing 11 5 5 Adjusting...

Page 4: ...the device must not be tampered with as in this area there is an additional risk of triggering an electric shock 1 2 Notes on the electrical system Before connecting to a mains power supply you must...

Page 5: ...older must not be rotated back too far If you do this there is a risk that the microscope could tip over When the microscope is not being used you should fit the objective cap and cover the microscope...

Page 6: ...s these are highly flammable substances You must therefore keep it away from naked flames and electrical devices which can be switched on and off and only use it in well ventilated rooms However organ...

Page 7: ...OSE 42 BA e 1810 6 2 Nomenclature...

Page 8: ...Product dimensions WxDxH 340x310x225 mm Standard configuration Model KERN Tube Eyepiece Field of view mm Objective Stand Illumination OSE 421 Binocular WF 10x 20 mm 20 2x 4x mechanical 1W LED reflecte...

Page 9: ...he tube You just need to remove the protective film which covers them When doing this make sure that you do not touch the optical lenses with your fingers In general you should avoid using two eyepiec...

Page 10: ...9 OSE 42 BA e 1810 Assembled stereo microscope...

Page 11: ...n uses the microscope the gap between the two eyepieces must be re adjusted While you are looking through the eyepieces use one hand to hold the righthand or lefthand prism housing firmly By rotating...

Page 12: ...he dioptre adjustment ring of the right eyepiece 9 In order to get the highest level of accuracy when adjusting the focus you should repeat steps 5 8 10 Afterwards set back to the smallest possible ma...

Page 13: ...ied by the glasses symbol on the side They are also marked in the item description by an additional H example HSWF 10x 23 mm When fitting the eye cups make sure that the dioptre setting is not moved W...

Page 14: ...ing is not suitable for the application then it often makes sense to fit an external lighting unit to overcome this problem The lighting units which are suitable for devices of the OSE 42 series are g...

Page 15: ...e long service life of an LED lighting system for these microscopes it will not be necessary to simply change a bulb Problems with the lighting unit would therefore in most cases be caused by defects...

Page 16: ...icient The wrong bulb has been used The input voltage is too low Optical unit Problem Possible causes You can see two images The gap between the eyes is not set correctly The magnifications of the eye...

Page 17: ...materials which you can dispose of at your local recycling centre Disposal of the storage box and device must be carried out by the operator in accordance with all national or regional laws in force...

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