Canceled Cycles
If the process parameters are not met in any of the stages, or if the
operator presses CANCEL, a controlled shutdown is performed while
descriptive messages are displayed and printed.
If a cycle is canceled for the first time because the vacuum was not low
enough for injection; or the door temperature did not reach 40° C; or
there was no pressure rise in injection; or there was a power failure
longer than 1 minute; or the injection system was interrupted; the
following occurs:
F
The chamber is vented to atmospheric pressure.
F
The cassette is indexed if injection system interrupted was detected.
F
The cycle is automatically restarted without opening the door.
F
The sterilizer restart message and other appropriate messages at end
of restarted process are printed.
F
If a cycle is canceled for any of the reasons listed above for a second
consecutive time or for any other failure, the controller goes through
a 10 minute process as follows:
F
The alarm sounds for 10 seconds.
F
The alarm light comes on until the cycle ends.
F
The chamber is evacuated to 500 mTorr.
F
RF power is turned ON, the chamber continues to evacuate until 200
mTorr is reached (or until 10 minutes has elapsed).
F
RF power and vacuum pump are turned OFF.
F
Vent valve is opened.
F
When the vacuum switch senses atmospheric pressure in the
chamber, the vent valve is closed and the chamber starts evacuating
for a second time.
F
At 500 mTorr RF power is turned ON for the second time.
F
The chamber continues evacuating. At the completion of 10 minutes
total elapsed time in the cancel cycle; the RF power and the vacuum
pump are turned OFF; the chamber is vented to atmosphere.
F
The alarm is sounded again for 10 seconds.
F
The appropriate cancellation message is printed.
F
The door opens.
System Operation
Theory of Operation-Overview
2-10
STERRAD® 100 Sterilizer
ASP Service Guide rev. D
Содержание STERRAD 100
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