KERN OSF-4, Инструкция пользователя

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15
OSF-4-BA-e-1510
5.7 Lighting control
All microscopes in the OSF-4 series have simple reflected and transmitted light
illumination .
With the mains cable connected you can switch the light units on and off using the
switches on the stand base as follows: for
reflected light use the switch on the
right rear corner and for transmitted light use the switch on the left rear corner .
The light intensity cannot be adjusted.
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.
The lighting units which are suitable for devices of the OSF-4 series, are goose neck
lighting units
(see figure) . These are available as LED as well as halogen versions
and also have an on/off switch or different controller.
Typical goose neck lighting unit
Using goose neck lighting units
Depending on the requirements, a goose neck lighting unit is placed next to, in front
of or behind the microscope. The light source is in the housing of the unit and is
emitted through one or several optical fibre cables.
These cables are flexible and therefore offer a large number of positioning options,
so that the object being observed is perfectly illuminated.