KERN OLM 171, Инструкция пользователя

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OLM-1-BA-e-1610 12
4.2 Objectives
The nosepiece must be in its lowest position so that the objectives [1] can be
screwed into it. You can then pass the objectives through the opening of the
specimen stage and screw them into the nosepiece, so that when you turn the
nosepiece in a clockwise direction, the objective with the next strongest magnification
appears. You must make sure that you do not touch the lenses with your bare fingers
and that no dust enters the apertures.
To the screw locations which are not filled with an objective [2], you must attach the
protective cap.