Drawell B Series Manuale d'uso - Pagina 10

Sfoglia online o scarica il pdf Manuale d'uso per Apparecchiature di laboratorio Drawell B Series. Drawell B Series 19. Biological microscope

with 10X objective. If the image isn't enough clear with the other objectives,

please turn fine focusing knob slightly to find the satisfactory image.

▲Don't turn left and right coarse and fine focusing knobs with different

direction with power at the same time, if so, the focusing system will be

damaged.

▲Don't directly pull objective to turn nosepiece when user changes the different

objectives, if so, optical quality of

microscope possibly be affected. The

right way is to take the tooth-like part

of the nosepiece to turn it, and make

the objective into correct position and

into the bright path.

4.6 Usage of the tension adjustment

ring (Shown in Fig.6)

The tension adjustment ring can adjust the tension of the coarse and fine

focusing unit to prevent the stage from sliding down automatically and to

improve the comfort of operation. Rotation clockwise makes tension decrease,

and by contraries, rotation counterclockwise makes tension increase.

4.7 Usage of immersion oil objective

The 100X objective of B series microscope can be used for observation even if

without immersion oil. However, adding moderate immersion oil between the

front lens of 100X objective and the cover glass of specimen can make the

image clearer. Please pay attention that air bubble and impurity can't be in the

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