Coltene SciCan BRAVO G4, Техническое и сервисное руководство, Страница: 36 / 116

Sterilizers Bravo G4
- TECHNICAL MANUAL
34
FUNCTIONING EN
4.11. DRYING
This phase of the sterilization cycle eliminates the residual humidity from the chamber, by completely drying the load.
The drying is carried out keeping a negative pressure level inside the chamber and allows the condensate to
evaporate at a temperature lower than 100°C (212°F).
During the drying phase, which requires a specific time for each sterilization cycle (e.g.: 12’ for 134°C universal cycle)
a series of pressure pulses are performed in the chamber, indicatively between - 0.80 bar and 0.60 bar, to improve
the removal of the residual steam; the number of pulses performed can vary according to the humidity level in the
load.
In the pressure rise phases carried out during pulses, solenoid valve EV5 is activated to allow the air to flow inside
the chamber through the bacteriological filter; this air flow helps remove steam.
DRYING - component activation status
ST
AT
U
S
EV1
High drain
(N.O.)
EV2
Air inlet
(N.C.)
EV3
Low drain
(N.C.)
EV4
Drain
deflector
(3V)
EV5
Chamber
air inlet
(N.C.)
FAN
W
AT
ER
PU
MP
- EV6
VA
CUUM
PU
MP
C
H
AMBER
T
U
BE
BUNDL
E
HE
AT
ING
G
ENE
RA
TO
R
HE
AT
ING
EL
EMEN
T
Pressure decrease
On
closed
Off
closed
On
open
On (1)
Off
closed
ON OFF ON ON OFF
Pressure rise with
air
On
closed
Off
closed
On
open
On (1)
On
open
ON OFF ON ON OFF
134°C B Cycl e - 4 mins. (ROW versions only)
132°C/270°F Hollow Wrapped Cycle - 4 mins. (US/CA versions only)