SES 2000 Vac (LS3) AUTOCLAVE Part 2
ST-SM45g Page 11 of 53
PART 2 DESCRIPTION
it will indicate such problems by displaying errors codes
such as 'ERROR 3' or 'ERROR 4' respectively, which will
be accompanied by an audible warning signal (see Error
Code Table page 12).
21 The autoclave operates at temperatures slightly
above the usual recommended minimums. The operating
temperature for the 121°C cycle is set to 122°C, and the
134°C cycle is set for 135°C.
22 As the cycle enters the sterilization phase, the
display shows 'STERILIZING'. At the end of the sterilizing
phase the heater is turned off and the discharge valve is
opened to discharge water and steam from the chamber.
This phase is indicated by 'CONDENSING' being shown
on the display.
23 Once the controller detects that chamber temperature
and pressure have fallen to a safe level, the display
'CYCLE COMPLETE' will be shown to indicate that the
cycle is complete. When the chamber door is opened the
display will show 'CLOSE THE DOOR'.
Note: If the autoclave has a printer, the printout will
include the following details:
❑ Autoclave type and serial number.
❑ Date and time of sterilization cycle.
❑ Counter indication (five digits with leading zeros).
❑ Sterilization cycle type, e.g. 134°C without drying.
❑ Sterilization cycle time, temperature, and pressure.
❑ Sterilization cycle ended message.
Operating information relating to the printer is given in
Appendix A to this Manual.
24 The overall time for the cycle is not fixed and
depends on many factors such as the supply voltage, the
load, and the ambient temperature. However, the control
board will ensure a satisfactory sterilization cycle even
when these factors vary over wide ranges.
25 If a cycle employing a drying phase is selected,
operation to the end of the sterilizing phase is as described
previously. After discharge of steam and water back into
the reservoir, however, the display 'DRYING' will be
indicated, together with the time remaining to the end of
the cycle. During the drying phase, operation of the
autoclave will alternate between vacuum pulses and
filtered air inlet pulses to achieve optimum drying.
26 The length of the drying phase will vary according to
the programme selected, and the chamber band heater
will operate to promote drying. At the end of the drying
phase, the display 'CYCLE COMPLETE' will appear
indicating that the door can be opened.
DISPLAY MESSAGES
27 Throughout a selected cycle the following symbols
may appear on the digital display:
Display Meaning
OPEN THE DOOR Door was closed when the
autoclave was switched 'on'.
PLEASE WAIT* The autoclave is measuring
atmospheric pressure
CLOSE THE DOOR The door is open and the cycle
cannot start.
READY FOR USE Waiting programme selection.
CYCLE STARTED Programme selected and cycle
started.
VACUUM ON Chamber air/steam discharge
in progress.
FILLING Water entering chamberprior to
steriliszation
PULSING Pre-sterilization steam
treatment.
STERILIZING Sterilization in progress.
CONDENSING Discharging water and steam
from chamber.
DRYING Load being dried (time remaining
to the end of cycle will also be
shown).
CYCLE COMPLETE Cycle completed successfully.
* Only applicable to software version 5.2 or above (as
shown briefly on display when autoclave first switched on).
ERROR INDICATION
General
28 If an error occurs during the cycle, an error code will
be displayed (see the Error Code Table on page 12).
29 If an error occurs during a cycle, the control board will
cancel the cycle (see Fault Diagnosis, and Errors and
Error Clearing in Part 3).
Note: These error codes will generally require investigation
by an Eschmann trained engineer. If an error occurs
during the cycle, the printer (if fitted) will print out the date
and time, the message 'CYCLE FAILED' and the appropriate
error code. Information relating to the printer, if fitted, is
given in Appendix A to this Manual.
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