KERN OZL-45, Инструкция пользователя

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OZL-45-BA-e-1510
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5.7 Lighting control
(OZL 451)
Reflected light and transmitted light can be switched on separately.
The
switch for transmitted light is at the left rear corner of the stand base. The
switch for reflected light is on the right rear corner.
You can also control the light intensity of the lighting units. To do this there is a
wheel fitted to the righthand side surface of the stand base. This is used for both
reflected light and transmitted light .
This means that when both lighting units are switched on, then you can only adjust
the light intensity for both units together, you cannot adjust them separately.
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 OZL-44 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. For halogen lighting units, the light source is in the
housing of the unit and is emitted through one or several optical fibre cables. For
LED units, on the other hand, it us usually at the end of the cable.
These cables are flexible and therefore offer a large number of positioning options,
so that the object being observed is perfectly illuminated.