DKL L2-S300, Operating Instructions Manual, Page: 261 / 327

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7117100018L30 1712V002
Product description
The spiral motion feeds the separated fluid con-
tinuously to the pump wheel, which transports
the fluid into the collector vessel� The fluid is
transported to the centrifuge (8) via a pump
cone (11)�
An external station selection valve connects
the CAS 1 with the suction unit via the vacuum
connection (2)�
5.3 Spittoon connections
The waste water from the spittoon flows through
a protective strainer on the fluid inlet (1) and
into the collector vessel (12)� Once sufficient
fluid has been collected, the float sensor (13)
activates a light barrier (9a) and (9b) via a sensor
housing (10) and switches on the motor (1)� The
fluid is transported to the centrifuge (8) via a
pump cone (11)�
5.4 Station selection valve / safety
valve
The station selection valve has 2 tasks:
1st task:
The station selection valve interrupts the suction
flow between the hose manifold and the suction
unit� As soon as a suction hose is removed
from the hose manifold, a solenoid valve opens
the station selection valve and suction flow is
enabled�
2nd task:
The station selection valve also acts as a safety
valve� If the CAS 1 is over-full or not functioning
properly, the system will perform a safety shut-
down� This safety shutdown prevents fluids from
being drawn into the dry suction pipe�
For single station suction systems, the
station selection valve takes over the
function of the safety valve�
In various types, a station selection valve is
already integrated in the CAS 1� The station
selection valve is on the connection (2) of the
CAS 1�
5.5 Amalgam separation
The switches in the hose manifold or the light
barrier of the sensor system switch on the
motor and the associated centrifuge (8)�
The fluid containing amalgam particles flows
continuously to the collector vessel (12)� The
fluids ejected by the centrifuge are pumped
through the fluid output (4) to the central waste
water system�
5.1 Operation
CAS 1 Combi-Separator
The task of the CAS 1 combi-separator is to
provide continuous separation of secretions and
air as well as the amalgam separation of all the
waste water from the treatment unit�
The waste water flows through the connection
(1) from the spittoon directly into the centrifuge
(8) and amalgam separation�
During the suction phase the aspirated secre-
tions are separated from the aspirated air in the
separation unit (6)� The secretions accumulating
in the separation unit are continuously trans-
ported to the centrifuge (8), where the amalgam
particles are then separated�
Underneath the centrifuge is a replaceable
amalgam collector vessel (12), into which the
separated amalgam particles (15) are rinsed
once the centrifuge (8) is switched off� A float
sensor (13) checks the level within the collector
vessel and sends a signal to the display panel
when it needs replacing� In combination with a
light barrier (9c), this float sensor also monitors
whether a collector vessel is in use�
The compact size of the CAS 1 Combi-Separa-
tor allows it to be installed in dental treatment
units� This results in short secretion carrying
lines� After the centrifuge is switched off, the
braking cycle triggers a self-cleaning process�
This self-cleaning process also leads to smooth
and silent running, as well as providing a sepa-
ration efficiency of more than 95%, even under
heaviest loads�
5.2 Separation
At the inlet connection (3) of the CAS 1, the
aspirated fluid/air mix is accelerated and set into
a spiral motion in the separation unit (6)� The
resulting centrifugal forces sling the aspirated
particles against the outer wall� The air is contin-
uously separated from the fluid and escapes via
the spinning separation rotor (7) to the suction
unit�
The aspirated air is subject to high centrifugal
forces by the separation rotor (7), which is
driven by the motor (1), which ensures that no
fluid or blood foam can be carried into the suc-
tion unit�
EN