KERN OZC 583, Инструкция пользователя

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13 OZC-5-BA-e-1510
5.5 Adjusting the stand
Torque of the focus wheels
You adjust the torque of the focus wheels by holding one of the two wheels in place
and using the other hand to turn the other wheel.
Depending on the direction of the turn, the torque will be increased or decreased.
On one hand, this function can help to make it easier to adjust the focus and on the
other hand it can prevent the microscope head from slipping down unintentionally. In
this way you can avoid possible damage which could occur if the objective lens and
the object being observed should collide.