15
ENGLISH
Recommendations
The retailer or the installation engineer will take care to train the surgery staff with
trials on a brand new, non-contaminated appliance
.
The installation of the amalgam separator is reserved to dental engineers authorized by
the manufacturer. Aspirated debris is always contaminated and infected: for this reason,
we stress that the greatest care must be used to prevent contamination of operators or the
environment. Contamination may also result from an appliance in bad working order so
we recommend to contact only dental engineers taught and trained by the manufacturer,
and provided with original spare parts.
Operation
(Fig. 1, pag. 51)
Fluid passing through the inlet (1)
gets to the diffusion holes
(2); they distribute uni-
formly the fl uid inside the cone and make it
whirl downwards
. When the fl uid gets to
the
bottom of the cone (3), it is subjected to a reversal of rotation and to a backfl ow
: at
the point of the rotation reversal the speed is null and
the amalgam particles fall into
the collecting container
whilst
the liquid rises upwards in the middle of the cone to
be drained off
from the outlet (4).
Warning and amalgam level electronic control system
description
(Fig. 2-3-4, pag. 52-53-54)
Next to the amalgam container (5)
two photodiodes (22) gauge the amalgam level in
the container
: a yellow warning light (7) and a buzzer indicate that the container has been
fi lled up to
95%
of its capacity. To silence the buzzer push the button (10). The Hydrocy-
clone will keep on running as usual whilst the warning light (7) will stay on. The warning
light (8) and a second beep mean that
the amalgam container is fi lled at 100%
. The
buzzer can be reset again by pushing button (10) and the Hydrocyclone will work until it
is switched off.
This time it cannot be started again unless the amalgam container
is replaced
. The warning system (see fi g. 4) consists of a power printed board AC 55
and of a logic one AC 54 (superposed to form a unit), of a control panel AC 37, and of a
max. of three level sensors AC 56 (connected in series) as the AC 54 Printed Board can
control up to three separators; however it is enough that one of them gets to a critical
level of 95% or of 100% to alarm the whole system. The AC 55 printed board is fi tted
with four relay connecting points; the fi rst one for the 95% level, the second one for the
100% level, the third one for the buzzer, and the fourth for the contact (normally closed)
stopping the aspiration when the max. amalgam level has been reached as described
above. The same AC 55 P.B. is also fi tted with a contact for the remote reset. To facilitate
the checking, it is possible to install a remote control panel close to the operative area by
using the relay connecting points also in case of a centralized separation system.
All the
printed boards must be fed with low tension 24 V~ AC
. They can be supplied without
protecting cover or fi tted with their IP20 protection-degree boxes, see fi g. 4.
Amalgam level visual control
(Fig. 2-3, pag. 52)
All our amalgam separators are sold with electronic amalgam level control.
Notwithstanding the absolute reliability of our systems, we recommend that an expert
engineer check all machines located outside.
The visual control of the amalgam level must be carried out very often and methodi-
cally
. As the demolition of a reconstructed molar tooth can raise the amalgam level by one
millimetre, we deem necessary to check the actual status of the container before every
operation requiring the use of the amalgam separator.
