15
EN
TECHNICAL MANUAL - B CLASSIC / B FUTURA / S CLASSIC
FUNCTIONING
1.12 PRESSURE LEVELLING
The PRESSURE LEVELLING phase restores ambient pressure, which a condition necessary to achieve cycle end and
enable door opening.
Chamber pressure is brought to ambient pressure levels by letting air ow into the chamber through the bacteriological
lter/EV5, without suction.
LEVELLING - components on state
STATE
EV1
Drain
High (NO)
EV2
Air inlet
(NC)
EV3
Drain Low
(NC)
EV4
Drain
bypass
(3V)
EV5
Air inlet to
chamber
(NC)
FAN
WATER
PUMP
VACUUM
PUMP
CHAMBER
BUNDLE HTR
GENERATOR
HTNG ELMT
Pressure
rise
Off
open
Off
closed
Off
closed
Off (2)
On
open
ON OFF OFF ON ON
After chamber pressure has reached – 0.02 bar, the CYCLE END begins and a corresponding indication appears on
the display.
It only at this time that the door release control is enabled and user may open the door, bringing the autoclave back
into STANDBY mode.
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