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17 

 

OZG_497-BA-e-1510 

5.9  Changing the bulb 

 
Halogen 

 

Before  changing  the  halogen  bulb,  you  must  always 

switch  off

  the  device  and 

unplug  it  from  the  mains

.  You  must  also  make  sure  that  the

  bulb  and  housing 

have cooled down, so that you avoid any risk of possible burn injuries.  
 
To  change  the  bulb,  the  whole  lamp  housing,  fitted  underneath  the  working  stage, 
has to be removed. Therefore you have to tip the device carefully to the back or side 
and then loosen the fixing screws (Allen wrench) at the bottom of the working stage. 
When doing this, please make sure that all microscope components are firmly fixed. 
The bulb which appears inside the open lamp housing can then be simply pulled out 
of its socket and replaced with a new bulb. You must then position and fix again the 
housing correctly.  
 

Please always use cloth gloves or similar to hold and fit a new bulb otherwise 
grease and dust residue on the surface of the bulb could have a negative effect 
on its brightness and service life. 

 
 

5.10  Changing the fuse 

 
There is a fuse 

on the rear of the microscope stand base (label: “Fuse”). 

If the fuse has blown, then with the device switched off and the power disconnected, 
the fuse can easily be unscrewed using a flat blade screw driver and replaced with a 
new one. 

 

Содержание OZG 497

Страница 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 Jewellery microscope stereo zoom KERN OZG 497...

Страница 2: ......

Страница 3: ...ssembly 9 5 Operation and functionality 11 5 1 Getting started 11 5 2 Adjust the interpupillary distance 11 5 3 Adjusting the magnification 11 5 4 Dioptre adjustment and focussing 12 5 5 Adjusting the...

Страница 4: ...ting to a mains power supply you must make sure that you are using the correct input voltage The information to select the correct power supply is located on the device on the rear of the stand base Y...

Страница 5: ...holder 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 microscop...

Страница 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...

Страница 7: ...OZG_497 BA e 1510 6 2 Nomenclature...

Страница 8: ...7 OZG_497 BA e 1510 Rear view...

Страница 9: ...On both sides Packaging dimensions WxDxH 600x480x400 mm Product dimensions WxDxH 340x235x580 mm Gross weight 14 7 kg Net weight 11 5 kg Standard configuration Model KERN Tube Eyepiece Field of view mm...

Страница 10: ...the microscope To do this there is a screw connection both on the stand as well as the bulb housing of the front light After that you should bring the front light into the correct position Now the goo...

Страница 11: ...scopes can be fitted to the eyepieces see section 5 6 You can fit a C mount adapter to the appropriate connection point on the top of the microscope head This enables you to fit and use digital camera...

Страница 12: ...illary distances So each time a different person 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 righthan...

Страница 13: ...ough the right eyepiece with the right eye and bring the object into focus by using the focus control dials 5 Now set the largest possible zoom factor 6 Once again still only looking through the right...

Страница 14: ...unintentionally In this way you can avoid possible damage which could occur if the objective lens and the object being observed should collide Tilt function The stand of the microscope has a tilt func...

Страница 15: ...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...

Страница 16: ...n be used to switch it on and off It is not connected to the dimmer wheel and does not have one of its own So the light intensity does not vary at all However the advantage of the front light is that...

Страница 17: ...ot suitable for C Mount cameras You firstly have to remove this adapter in order to attach an appropriate one In total there are three focusable adapters to choose from see figure below The difference...

Страница 18: ...doing this please make sure that all microscope components are firmly fixed The bulb which appears inside the open lamp housing can then be simply pulled out of its socket and replaced with a new bulb...

Страница 19: ...mm OZB A4119 HSWF 20x 14 5 mm OZB A4120 HWF 25x 11 7 mm OZB A4121 C Mount 1x OZB A4809 0 3x OZB A4810 0 5x OZB A4811 Dark field attachment Dark field attachment OZB A4601 Object clamp Object clamp ste...

Страница 20: ...sufficient The wrong bulb has been used The input voltage is too low Optical unit Problem Possible causes You can see two images The interpupillary distance is not set correctly The magnifications of...

Страница 21: ...y 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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