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Summary of Contents for KERN OSF 522
- Page 1 KERN & Sohn GmbH Ziegelei 1 Tel: +49-[0]7433- 9933-0 D-72336 Balingen Fax: +49-[0]7433-9933-149 E-mail: info@kern-sohn.com Internet: www.kern-sohn.com User instructions Stereo microscope KERN OSF-5 OSF 522, OSF 523, OSF 524 OSF 525, OSF 526, OSF 527 Version 1.0 01/2015 OSF-5-BA-e-1510...
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Page 3: Table Of Contents
KERN OSF-5 Version 1.0 01/2015 User instructions Stereo microscope Table of contents Before use ..................3 General notes ..........................3 Notes on the electrical system ....................3 Storage ............................4 Maintenance and cleaning ....................... 5 Nomenclature ................6 Basic data ..................8 Assembly .................. -
Page 4: Before Use
1 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. -
Page 5: Storage
1.3 Storage You should ensure that the device is not exposed to direct sunlight, temperatures which are too high or too low, vibrations, dust or a high level of humidity. The ideal temperature range is between 0 and 40°C and a relative humidity of 85% should not be exceeded. -
Page 6: Maintenance And Cleaning
Special cleaner for optical lenses Special optical cleaning cloths Bellows Brush When handled correctly and checked regularly, the microscope should give many years of efficient service. Should repairs still be necessary, please contact your KERN dealer or our Technical Department. OSF-5-BA-e-1510... -
Page 7: Nomenclature
2 Nomenclature Using the OSF 527 as an example (With lighting) OSF-5-BA-e-1510... - Page 8 Rear view OSF-5-BA-e-1510...
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Page 9: Basic Data
Tube angled at 45° 52 – 76 mm Interpupillary distance Dioptre adjustment One-sided (left) OSF 522 / OSF 524 / OSF 526 Product dimensions WxDxH 310x285x380 OSF 523 / OSF 525 / OSF 527 Product dimensions WxDxH 310x285x400 Standard configuration... -
Page 10: Assembly
4 Assembly The first step is to position the microscope stand on a firm, level surface. The term stand covers the stand base (standing surface) as well as the metal pillar which is connected to it. The holder is already on pillar of the stand, but you must always check whether it is fixed securely and that it is in the correct position (preferably centrally and facing to the front). - Page 11 Assembled stereo zoom microscope OSF-5-BA-e-1510...
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Page 12: Operation And Functionality
5.3 Adjusting the magnification As the KERN OSF-5 series are stereo microscopes (without zoom), we will describe how to set the magnification using the integrated and rotating objective. For the devices in this series, you can select between two different magnification factors at any time. -
Page 13: Dioptre Adjustment And Focussing
5.4 Dioptre adjustment and focussing A special feature of stereo microscopes is that they are fitted with an optical unit which has a relatively high depth of field. In order to be able get the most benefit from this feature, each user must synchronise the focussing mechanisms for themselves. The steps to do this are described in the following section. -
Page 14: Adjusting The Stand
5.5 Adjusting the stand Torque of the focus wheels You adjust the torque of the focus wheels by holding one of the two wheels in place and using the other hand to turn the other wheel. Depending on the direction of the turn, the torque will be increased or decreased. On one hand, this function can help to make it easier to adjust the focus and on the other hand it can prevent the microscope head from slipping down unintentionally. -
Page 15: Using Eye Cups / High Eye Point Eyepieces
5.6 Using eye cups / High Eye Point eyepieces The eye cups supplied with the microscope can basically be used at all times, as they screen out intrusive light, which is reflected from light sources from the environment onto the eyepiece, and the result is better image quality. But primarily, if eyepieces with a high eye point (particularly suitable for those who wear glasses) are used, then it may also be useful for users who don’t wear glasses, to fit the eye cups to the eyepieces. -
Page 16: Brightness Adjustment
5.7 Brightness adjustment (OSF 523, OSF 525, OSF 527) For microscopes which have integrated lighting, the necessary on/off switches are on the righthand side of the stand base on/off switch (see figure). Provided that the main switch is switched on, you can operate the reflected light and transmitted light using these two switches. -
Page 17: Using External Illumination Units
5.8 Using external illumination units If, when using a microscope in its standard version, the lighting is not suitable for the application, then it often makes sense to fit an external lighting unit to overcome this problem. These lighting units are divided into two groups. ... -
Page 18: Using Additional Accessories
5.9 Using additional accessories Dark field kit and object clamp Microscopes from the OSF-5 series are ideal for dark field applications. Dark field attachments and object clamps are available as accessories for these applications. You just have to fit the dark field attachment in the recess in the middle of the stand base. - Page 19 Angle table Standard angle table Angle table for using transmitted light For easier handling of an object to be observed, it can be useful to fit an additional mechanical angle table on the working surface of a stereo microscope. For devices without lighting you can use a standard angle table (see left figure). However if there is an integrated transmitted lighting unit, you should use a special angle table with transmitted light compatibility (see right figure).
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Page 20: Changing The Bulb
5.10 Changing the bulb Devices from the OSF-5 series with lighting units are all fitted with LED bulbs. Due to the 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 in the electrical system. -
Page 21: Optical Data
○ ○ ○ ○ OZB-A5782 Travel: 100x86mm, for reflected light For information on external lighting units, please see the Kern Optics main catalogue, from page 68 External and visit our website www.kern-sohn.com illumination ● = Standard configuration ○ = Option... -
Page 22: Trouble Shooting
8 Trouble shooting Electrical system Problem Possible causes The lighting unit (if fitted) cannot be The power cable is either not connected or switched on not connected correctly The bulb is not fitted The bulb has blown The fuse has blown The brightness control is set to the lowest level The bulb has blown... -
Page 23: Service
The device may only be opened by trained service engineers who have been authorised by KERN. 10 Disposal The packaging is made of environmentally-friendly materials, which you can dispose of at your local recycling centre.
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