background image

23 

 

OBE-1-BA-e-1611 

Trouble shooting 

 

Problem 

Possible causes 

The bulb does not light 

The mains plug is not correctly plugged in 

There is no power at the socket 

Defective bulb 

Defective fuse 

The bulb blows immediately 

The specified bulb or fuse has not been used 

The field of view is dark 

The aperture diaphragm and/or field 
diaphragm are not opened wide enough 
The selector switch for the beam path is set 
to “Camera” 

The condenser is not correctly centred 

You cannot adjust the brightness 

The brightness control has been set 
incorrectly 
The condenser has not been correctly 
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 two settings 

The nosepiece is not correctly fitted 

The condenser is not correctly fitted 

An objective is being used which doesn’t 
match the lighting area of the condenser 
The condenser has not been correctly 
centred 

The field diaphragm is closed too tightly 

The bulb is not correctly fitted 

The field of view of one eye does not 
match that of the other eye 

The interpupillary distance is not correctly 
adjusted 
Dioptre setting has not been carried out 
correctly 
Different eyepieces are used for the 
righthand and lefthand side 

The eyes are not used to using a microscope 

 

 

Summary of Contents for OBE 101

Page 1: ...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 KERN OBE 1 OBE 101 OBE 102 OBE 103 OBE 107 OBE 108 OBE 1...

Page 2: ......

Page 3: ...es 11 4 4 Condenser 11 5 Operation 12 5 1 Getting started 12 5 2 Pre focussing 13 5 3 Adjusting the interpupillary distance 14 5 4 Dioptre adjustment 14 5 5 Adjusting the magnification 15 5 6 Adjustin...

Page 4: ...ctric 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 information to select the correct mains cab...

Page 5: ...microscope is not being used you should cover it with the enclosed dust protective cover When doing this the power supply is stopped by switching off at the main switch and unplugging the mains cable...

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: ...OBE 1 BA e 1611 6 2 Nomenclature...

Page 8: ...7 OBE 1 BA e 1611 Rear view...

Page 9: ...ocular WF 10x 18 mm Achromatic 4x 10x 20x 40x 3W LED Transmitted OBE 109 Finite Binocular WF 10x 18 mm Achromatic 4x 10x 20x 40x 3W LED Transmitted Accu OBE 110 Finite Trinocular WF 10x 18 mm Achromat...

Page 10: ...9 OBE 1 BA e 1611...

Page 11: ...OBE 1 BA e 1611 10...

Page 12: ...agnification for both eyes These are already placed onto the tube connectors and each is fixed with a small silver screw under the eyepiece on the tube connectors so that they are turnable but you can...

Page 13: ...time your eyes are not immediately subject to a high level of light The next step is to place an object holder with the sample on the angle table To do this the cover glass must be facing upwards You...

Page 14: ...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 15: ...cular image then the interpupillary distance is set correctly 5 4 Dioptre adjustment For binocular and trinocular devices The eye strengths of each eye of the microscope user can often be slightly dif...

Page 16: ...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 17: ...ure diaphragm of the condenser to find the very best compromise between contrast and resolution for the microscopic image For the objective with the lowest magnification the lever of the aperture diap...

Page 18: ...ries Battery type LR6 AA Capacity 1300 mAh Nominal voltage 1 2 V Charging time ca 5 h Operation time with ideal light intensity ca 3 h Total operation time ca 8 h The batteries are being charged as so...

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: ...nection point of its cable Now the new module has to be mounted in the same why as the original one After the bulb holder has been replaced in the underside of the device and the screws replaced the b...

Page 22: ...wo points to take into account when subsequently using the polarisation unit The aperture setting of the condenser must be at the maximum lever completely on the left side For its starting position th...

Page 23: ...ew A camera which has a C mount thread is then screwed on top of the adapter We recommend that you first adjust the field of view using the eyepieces on the device for the existing requirements and th...

Page 24: ...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 25: ...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 26: ...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: