31
USING THE STERILIZER - 5
5.7
Running the program
Press the
START/STOP
button to run the selected program.
NOTE
The
S134
programs are
CUSTOM
programs and not guarantee class B sterilization. To run these types of
programs, press and hold the
S134
or
CUSTOM
button and press the key
START/STOP
button.
When the program starts, the door is locked and remains locked for the entire duration of the program.
The displays show the settings for the selected program for 10 seconds and the device begins to perform the various phases
of the sterilization cycle automatically and in sequence.
The cycle phases are controlled by the microprocessor and shown in sequence on the displays to allow the operator to follow
the phases and respective times in real time.
The LED indicating the current phase (VACUUM - STERILIZE - DRY - READY) also lights up.
The indications for the various phases of the cycle are listed below:
• The VACUUM LED lights up
• The TIME display starts the cycle time countdown
• The PRESS display indicates the pressure in the sterilization chamber
• The TEMP display indicates the temperature
• The LED for the selected program starts to flash.
Vacuum phase (entry of water into the chamber and pre-vacuum phases)
In this first phase, the vacuum pump is activated and a specific quantity of water is pumped into the chamber. During this
phase, the VACUUM LED flashes.
This phase is repeated several times for a total time of between 10 and 20 minutes, depending on the chamber and load
conditions. When the pump starts operating there may be a slight noise.
Sterilization phase
Once the programmed parameter values have been reached, the VACUUM LED switches off and the STERILIZE LED lights up.
The process time countdown begins on the TIME display and the PRESS and TEMP displays show the respective pressure and
temperature values for the steam in the sterilization chamber.
The sterilization phase is followed by the decompression phase and the PRESS display shows the decreasing pressure value.
Also in this phase, the TIME display shows the decompression time countdown.
NOTE
The manufacturer has set intentionally extended decompression times in order to reduce the temperature
swing caused by the change in the state of the steam.
Drying phase
After decompression, the STERILIZE LED flashes to signal the end of the sterilization phase and the DRY LED lights up for the
drying phase.
During this phase, the heating elements continue to heat the chamber based on a differentiated logic controlled by the
microprocessor, the vacuum pump comes into operation once more to remove residual steam and the TIME display shows
the time countdown.
This is followed by a phase of forced ventilation through the bacteriological filter, also indicated by a countdown on the TIME
display.
End of cycle
At the end of the drying phase, the DRY LED switches off and the READY and STERILIZE LEDs light up. The device emits a
10-second acoustic signal to alert the operator that the program has ended.
At this point, the heating elements are disabled and remain in a low-power pre-heating state until the door is opened.
When the cycle is completed, the total cycle time is shown on the TIME display, while the PRESS and TEMP displays show the
current temperature and pressure values for the sterilization chamber.
