3B Scientific Air Cushion Plate - Handbuch (Seite 64)

13
Physical Experiments on the Air-Cushion Table
be positioned behind the experimenting table or
inside it. This will reduce the noise level reach-
ing the classroom. Further noise reduction can
be reached by wrapping sponge rubber around
the fan or lining it with Piatherm or the like. Spe-
cial care should be taken, though, to ensure that
the air can enter the suction nozzle unimpeded.
1.5. Maintenance and Care
The air-cushion table is a high-quality appara-
tus, which requires special care. Its stability has
certain limits because of the consistency of the
necessarily transparent material.
- Avoid damage caused by dropping, hitting,
bumping, dragging or sliding.
- Keep all parts clean and free from dust.
- Remove dust with an anti-static cloth. Strong
rubbing of the table surface causes electro-
static charging which may considerably affect
the experiments.
- To keep the pressure chamber clean, do not
place the airflow generator near dust accumu-
lations.
- Keep the bottom sides of the hover discs clean
at all times. They can be easily cleaned using
ethyl alcohol.