manualshive.com logo in svg

KERN Optics OBD 127, User Instructions, Page: 23 / 27

Share
Download
KERN Optics OBD 127 User Instructions Download Page 23

OBD-1-BA-e-1510 

 

22 

8.2  Dark field units 

 
There is the following way to carry out dark field applications. 
 

 

1.  A  special  dark field  condenser  can be  used in  place  of  the  standard  condenser. 

This  as  a  paraboloid  construction  and  also  meets  the  requirements  of 
professional application fields, in contrast to a dark field attachment. 

 
 
 
 
 

8.3  Phase-contrast unit 

 

 

 
 

 

Summary of Contents for OBD 127

Page 1: ...gelei 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 Transmitted light laboratory microscope digital KERN OBD 1 O...

Page 2: ......

Page 3: ...4 4 Colour filter 10 4 5 Condenser 11 5 Operation 11 5 1 Getting started 11 5 2 Pre focussing 12 5 3 Adjusting the interpupillary distance 13 5 4 Dioptre adjustment 13 5 5 Adjusting the magnification...

Page 4: ...n 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 infor...

Page 5: ...ch 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 The device should always b...

Page 6: ...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 organi...

Page 7: ...OBD 1 BA e 1510 6 2 Nomenclature...

Page 8: ...7 OBD 1 BA e 1510 Rear view...

Page 9: ...ty Trinocular 6V 20W Halogen Transmitting OBD 128 Infinity Trinocular 6V 20W Halogen Transmitting Eyepieces WF 10x 20 mm Objectives 4x 10x 40x 100x Product dimensions 395x200x430 mm Packaging dimensio...

Page 10: ...9 OBD 1 BA e 1510...

Page 11: ...on appears When the objectives need to be dismounted you should always make sure that you do not touch the lenses with your bare fingers and that no dust enters the apertures For objectives which are...

Page 12: ...irst step is to establish a power connection using the mains plug You should first adjust the dimmer to a low level so that when you look through the eyepiece for the first time your eyes are not imme...

Page 13: ...soon as an image is recognisable no matter how sharp then you should only adjust the focus using the fine adjustment knob Adjusting the torque of the coarse and fine adjustment knob Next to the left a...

Page 14: ...cular image then the interpupillary distance is set correctly 5 4 Dioptre adjustment The eye strengths of each eye of the microscope user can often be slightly different which in daily life has no con...

Page 15: ...objectives you should use the silver ring above the objectives see illustration When rotating the nosepiece you must always make sure that the objective which is about to be positioned in the beam pat...

Page 16: ...is is regarded as Fixed Koehler since the condenser is pre centred When adjusting the Koehler lighting for the first time you must first select the lowest possible objective magnification so that you...

Page 17: ...illustration on the right The diameter of the aperture diaphragm which is then visible should make up approximately 2 3 of the pupil diameter If the eyepiece should be removed for checking then please...

Page 18: ...must establish a connection between the USB port of the camera and an USB port of a PC The needed cable is included in the scope of delivery Furthermore there is also a disk that enables you to instal...

Page 19: ...sses 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 We would theref...

Page 20: ...Lower the specimen stage and position the 100x objective in the beam path 3 Bring the specimen stage or object slide to the objective very slowly until there is slight contact 4 Observe the object The...

Page 21: ...is on the underside of the device It can be opened by undoing the screws on the holder see illustration We recommend that here you should also test again to check that heat is no longer being produce...

Page 22: ...polarisation unit consists of a polariser and an analyser Both consist of a round glass plate with an external holder ring To mount the analyser you have to remove the microscope head at first Then t...

Page 23: ...y out dark field applications 1 A special dark field condenser can be used in place of the standard condenser This as a paraboloid construction and also meets the requirements of professional applicat...

Page 24: ...ass without being affected by the PH slider The PH objective has a PH ring in its lens system just like the PH slider Due to their size on one hand and their positioning on the other these two rings m...

Page 25: ...y centred The condenser is too low The field of view is dark or is not correctly illuminated The objective is not positioned correctly on the beam path The selector switch for the beam path is between...

Page 26: ...Dirt dust on the front lens of the condenser Dirt dust on the object One side of the image is blurred The stage was not correctly fitted The objective is not positioned correctly on the beam path The...

Page 27: ...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...

Reviews:

No comments