Page 11
4.4
Preparation of instruments ________________________________________________
The instruments have to be cleaned and cared for
very thoroughly as described in chapter 2.1.
In addition, clean and oil hand pieces according to
the manufacturer's instructions.
4.5 Loading ________________________________________________________________
The closed and locked sliding door (1) is opened by
turning the knob (2) for 90° counter clockwise.
Shortly before the end of this quarter-turn, the
turning becomes slightly more difficult while the
sliding door is raised. When 90° turn is complete,
the marking on the knob will then point along the
axis of the autoclave. To open the door, push it
toward the rear by using the knob.
Do not press
down with the knob:
this would apply pressure to
the door gasket and would cause the door gasket to
jam.
Put the loaded basket (No.
121) or instrument
carrier (No. 122/123) into the sterilization chamber
by using
the supplied handle.
Never sterilize instruments without using a
basket or carrier.
Now pull the sliding door forward, again by taking
the knob without pressing down, until the end is
reached. For locking the door, turn the knob with 90
°
clockwise.
The red lamp
"Door"
(8) must go out.
If you move the knob with pressure, it may happen
that the door gasket will be shifted or even damaged
which causes a malfunction of the autoclave (see
also chapter 7.7 and 8.2.6).
4.6
Starting the sterilization / disinfection _______________________________________
To start the desired program, press the button
“START” (7). This is followed by a short beep which
confirms your request.
During the following 2
seconds, the autoclave
automatically tests the quality of the distilled or
demineralized water in the tank. If the water quality
is not adequate, a warning signal will follow, or in the
worst case a malfunction will be registered.
In both
cases, the lamp
„
WATER“ (9) will flash.
See
Section 1.7.
Water will then be automatically pumped into the
steam generator (for 16 seconds); this function is
clearly audible.
At the same time, the steam generator starts and the
air in the chamber will be pushed out through the
flow nozzle.
Pressure and temperature are built up under control
of the microprocessor. A blinking sign of the lamp
'"RUNNING" (12) indicates the momentary
heating-up phase.
When the required pressure (2 bar) and temperature
(134°C) for sterilization (0.2 bar and 105°C for
disinfection) is reached, the lamp "RUNNING"
shows a continuous light which announces that the
actual sterilization time is now in action.
During the whole process, first air and, after a while,
steam flows via a pressure safe hose from the
chamber to the condenser container.
Attention: hose is getting hot!
Remember that the running program can only be
stopped by pressing the main switch or by trying to
open the sliding door. In the last case, a fault
reaction will be triggered (lamp "FAULT" (10) lights)
which automatically reduces the pressure. The door
can only be unlocked and opened if the pressure
has fallen down to 0 bar (see gauge (5)).
Conditions for ability to start:
The process
cannot
be commenced, if:
•
there is lack of water
•
the sliding door is not closed and locked
•
the pre-heat process has not finished yet and the
lamp "READY" does not light without interruption
•
the quality of the distilled or demineralized water
is not adequate.
•
there is a fault
•
a program is in progress
If in any cases above the start button is pressed, you
will hear a beep for 2 seconds as a mistake in
operating.
4.7
Automatic pressure release _______________________________________________
At the end of a sterilization process, the autoclave
will automatically let the steam out. Then the lamp
"RUNNING" goes out and the lamp "END" (13)
comes on. The end of each process is confirmed by
4 short and 1 long beep.
4.8
Automatic printout of the log ______________________________________________
After the lamp
„
END“ (13) glows, and the acoustic
signal sounds five times, the protocol will be printed
out automatically if the printer has been connected
and is ready for operation. See Section 1.5.
4.9
Successful end of a process_______________________________________________
The acoustic signal and the light of lamp "END"
indicate the completion of a successful
sterilization/disinfection process.
This result says that the autoclave's chamber was
sufficiently saturated with steam and the minimum
values for pressure and temperature were definitely
fulfilled during the whole process.
This is also documented in the protocol if the printer
has been connected.
However, if the autoclave indicates a fault, the
minimum values were not achieved, even if you
open the door and the lamp "FAULT" does not shine
any more.
In this case, you cannot assume a
successful process. The instruments have to be
