9 Function tests
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9 Function tests
Manual functional checks
You can follow the program run on the display via the values displayed there. You can also use the logs
recorded for every program to determine the success of a program. The test programs enable you to per-
form an additional function check at any time.
Vacuum test
The steam sterilizer can be checked for leakages in the steam system using the Vacuum test. This deter-
mines the leakage rate at the same time.
Perform a vacuum test in the following circumstances:
▪ Once a week in routine operation
▪ During commissioning
▪ Following longer operating pauses
▪ Following a malfunction (e.g. in the vacuum system)
Perform the Vacuum test with the steam sterilizer in a cold and dry state as follows:
1.
Switch on the steam sterilizer at the power switch.
2.
Working in the
Programs & Tests
menu, select
vacuum test and press START.
Ê
The evacuation pressure and the equilibration time or measuring time are shown on the display. The
chamber is ventilated after the end of the measuring time. Then the message will be shown on the
display with an indication of the leakage rate. Should the leakage rate be too high i. e over 1.3 mbar, a
corresponding message will be issued on the display.
Bowie & Dick test
The Bowie & Dick test serves as proof of steam penetration of porous materials such as e.g. textiles. You
can perform a routine function check for proof of steam penetration. Use test program
Bowie & Dick
test
for this purpose. Specialist stockists provide various test systems for the Bowie & Dick test. Depend-
ing on the application, use either a test system for hollow body instruments or for porous sterilization mate-
rial (laundry etc.). Combination test systems can also be used. Perform the Bowie & Dick test in accord-
ance with the test system manufacturer's specifications.
1.
Switch on the steam sterilizer at the power switch.
2.
Place the test system in the sterilization chamber of
the steam sterilizer and close the door.
