General Features; Installation; Functioning And Use - Cattani 040005 Manuel D'utilisation

General features

The pneumatic aspirator is a low-cost extremely reliable appliance, small in size and
easy to install; it requires no maintenance. Its performance, low operating head and
flow, does not allow for use where traditional high-speed suction is needed; on the
contrary, it works very well as an emergency aspirator or else in the preliminary
examination room where a weaker suction is sufficient.
See table at page 8 for air consumption value.

Installation

(illus. 1 page 30)
We suggest mounting the body of the pneumatic aspirator inside the dental unit
(201110 with screws A to the respective holes, D), so that the bag container 201130
is outside the unit and filter 041050 can be easily inspected. Tube holder C is to be
connected to the waste outlet creating a siphon.
Seat 201109 is to be fitted within the reach of the surgeon and his assistant with
screws F. The aspirator-filter set 201110-201130 must be at a lower level compared
to the seat 201109. A Rilsan tube Ø 6x4 will feed air to the pneumatic aspirator through
electrovalve 182020 and tube holder 240500. Aspirated air will be exhausted through
outlet E, when the unit is on. There are two options: you can allow the air to disperse
in the room or convey it outside. In the first instance, in order to reduce noise
amplification caused by metal plate or other objects, we suggest you to use a conveyer
lined with foam rubber of 1-2 cm depth; it should reduce the noise considerably. We
suggest you to direct the outlet tube upwards, so that condensed water (due to
rarefaction) is free to move back to the aspirator and can be drained out by tube C. In
case it should not be possible to direct the tube with the wanted slope, nor to create
a siphon, it will be necessary to poke a hole in the lowest part of the tube in order to
collect condensed water which will eventually evaporate.

Functioning and use

(illus. 1 pag. 30 - table page 8)
We suggest to rate the pressure level in the compressor tank at 5-6 bar, while the
pressure reducing valve, 040009, must be rated so that the gauge 040007 is at 2.0-
2.5 bar when the unit is in use and 2.5-3.0 when the unit is off. This way, we will obtain
about 75/87,5 l/min aspirated air on the small terminal 040634, with the compressor
using up 4,2/9,1 l/min.
Table a pag. 8 shows other possible working conditions of the aspirator.
Item 201109, single seat is available only for the small terminal, the most suitable for
this kind of suction. By lifting the terminal from its seat 040634, microswitch 183010
opens electrovalve 182020 and aspiration starts. Aspirated liquid goes through filter
041050 and enters the unit, then it is drained to outlet C.
10