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User instructions
Transmitted light phase contrast microscope
KERN
OBN-15
Version 1.0
01/2016
OBN-15-BA-e-1610
KERN & Sohn GmbH
Ziegelei 1
D-72336 Balingen
E-mail: info@kern-sohn.com
OBN 158
Tel: +49-[0]7433- 9933-0
Fax: +49-[0]7433-9933-149
Internet: www.kern-sohn.com
Importør:
Impex Produkter AS
Gamle Drammensvei 107
1363 Høvik
www.impex.no
info@impex.no
Tel.: 22 32 77 20
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Related Manuals for KERN OBN-15
Summary of Contents for KERN OBN-15
- 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 Transmitted light phase contrast microscope KERN OBN-15 Importør: Impex Produkter AS Gamle Drammensvei 107 OBN 158 1363 Høvik www.impex.no info@impex.no Tel.: 22 32 77 20 Version 1.0...
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Page 3: Table Of Contents
KERN OBN-15 Version 1.0 01/2016 User instructions Phase contrast microscope Table of contents Before use ..................3 General notes ..........................3 Notes on the electrical system ....................3 Storage ............................4 Maintenance and cleaning ....................... 5 Nomenclature ................6 Technical data / Features ............8 Assembly .................. -
Page 4: Before Use
Suitable replacement fuses are included with the delivery. When carrying out any procedures whereby you come into contact with the electrical system of the device, such as, for example, changing the bulb or fuse, only carry out these procedures when the power is disconnected. OBN-15-BA-e-1510... -
Page 5: Storage
The best way to store accessories which consist of optical elements, such as, for example, eyepieces and objectives, is in a dry box with desiccant. OBN-15-BA-e-1610... -
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. OBN-15-BA-e-1510... -
Page 7: Nomenclature
2 Nomenclature OBN-15-BA-e-1610... - Page 8 Rear view Carrying handle Coarse adjustme nt knob Fine adjustment knob Main switch Fuse Power connection Adjusting ring torque Condenser Focus dial OBN-15-BA-e-1510...
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Page 9: Technical Data / Features
Objectives: 4x / PH10x / PH20x / PH40x / PH100x Product dimensions: 390x200x400 mm Packaging dimensions: 570x310x410 mm Net weight: 9 kg Gross weight: 11 kg Input voltage: AC 100-240V, 50-60Hz Output voltage: DC 1.2-6V Fuse: 2A 5x20 mm OBN-15-BA-e-1610... - Page 10 OBN-15-BA-e-1510...
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Page 11: Assembly
4 Assembly OBN-15-BA-e-1610... -
Page 12: Microscope Head
4.2 Objectives The standard equipment of the series OBN-15 includes one normal Infinity Plan objective (4x) and four Infinity Plan objectives for phase contrast applications (10x / 20x / 40x / 100x). -
Page 13: Ph Condenser
(see illustration on the left). To move the sample into the beam path, you must use the adjustment wheels on the right of the angle table (see illustration on the right). You can position a total of two object holders at the same time. OBN-15-BA-e-1610... -
Page 14: Pre-) Focussing
Important: In order to avoid damaging to the focussing system, the left and right adjustment wheels for the coarse and fine adjustment knob must never be rotated at the same time in opposite directions. OBN-15-BA-e-1510... -
Page 15: Adjusting The Interpupillary Distance
3. Then look through the left eyepiece with the left eye and use the lefthand dioptre adjustment ring to focus the image. To do this, you just need to turn the ring in both directions (see illustration), to find out where the image is at its most focussed. OBN-15-BA-e-1610... -
Page 16: Adjusting The Magnification
If you have focussed the object to be observed for a specific magnification, then if you select the objective with the next greatest magnification, then the object will be slightly out of focus. Use the fine adjustment knob to make a slight adjustment and restore the focus. OBN-15-BA-e-1510... -
Page 17: Adjusting The Koehler Illumination
If, as with the devices in the KERN OBN-15 series, the lighting can be set in accordance with Koehler, the result is homogenous illumination of the slide and avoidance of disruptive stray light. - Page 18 5. Open the field diaphragm until it just disappears out of the field of view. If necessary, simply re-centre using the centring screws on the condenser holder. OBN-15-BA-e-1510...
- Page 19 If another magnification is selected afterwards, then the Koehler illumination does not have to be reset from scratch, only the aperture diaphragm and field diaphragm need to be adjusted as required. As a result you can always check whether the condenser needs to be re-centred. OBN-15-BA-e-1610...
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Page 20: Using Eye Cups
In order to maintain hygiene, we would therefore recommend that you clean the eye cups regularly (e.g. with a damp cloth). Eye cups High Eye Point eyepiece (identified by the glasses symbol) OBN-15-BA-e-1510... -
Page 21: Using Oil Immersion Objectives
5.8 Using oil immersion objectives The 100x objectives of the OBN-15 series are objectives which can be used with oil immersion (they are always marked with the word “OIL”). Using these generates a particularly high resolution for microscopic images. To use oil immersion correctly, please follow these steps. -
Page 22: Phase-Contrast Units
100x), a centring telescope, two centring turnscrews and a green filter. This comprehensive PH unit is always included in the standard outfit of the models of the series OBN-15. To use this, you need to position one of the required PH objectives in the beam path and to check if the centring turnscrews are attached to the condenser. - Page 23 Depending on the preferences of the user, using a green filter can produce a more effective and pleasant image. To achieve this, the green filter must be screwed onto the underside of the PH condenser. OBN-15-BA-e-1610...
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Page 24: Changing The Bulb
When doing this, it is helpful to use a screwdriver or similar tool. The defective fuse can be removed from its housing and be replaced with a new one. After that, you just need to insert the fuse housing back into the insertion point below the mains power supply socket. OBN-15-BA-e-1510... -
Page 25: Using Optional Accessories
8 Using optional accessories 8.1 Camera connection Due to the trinocular tube, which is a standard fitting for the whole OBN-15 series, it is possible to connect microscope cameras to the device, in order to digitally record images or sequences of images of an object being observed. -
Page 26: Trouble Shooting
Dioptre setting has not been carried out correctly The field of view of one eye does not Different eyepieces are used for the match that of the other eye righthand and lefthand side The eyes are not used to using a microscope OBN-15-BA-e-1510... - Page 27 The stage moves down on its own The rotational resistance brake is not tight The fine adjustment knob moves on its enough When you move the table, the image The stage was not correctly fitted becomes blurred OBN-15-BA-e-1610...
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Page 28: Service
The device may only be opened by trained service engineers who have been authorised by KERN. 11 Disposal The packaging is made of environmentally-friendly materials, which you can dispose of at your local recycling centre. - Page 29 NOTES __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ ________________________________________________________ OBN-15-BA-e-1610...