Durr Dental Hygoclave 90, Installation And Operating Instructions Manual

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6046100064L02 1702V002SE
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Installation
10.2 Bowie-Dick test
The Bowie-Dick test is used to prove steam
penetration into the test load� It is designed in
such a way that, if proof is obtained that steam
has penetrated into the test load, it can be as-
sumed that steam will penetrate into the routine
loads�
It is usually not possible to perform a
Bowie-Dick test in the original sense on
small steam sterilisers, as the test was
developed for large-scale sterilisers in ac-
cordance with EN 285 and is based on a
washing package of 7 kg (or 4 kg for a
reduced test package), which would ex-
ceed the chamber volume or cause a
malfunction� For this reason, either use a
standard test package for small steam
sterilisers with a suitable indicator system
or a corresponding alternative indicator
system�
In order to test performance, it is possible to
routinely perform proof of steam penetration�
Carry out the test in accordance with the manu-
facturer's information�
i
Switch on the unit�
i
Touch
Settings > Maintenance > Diagnostic
Functions > Bowie-Dick TestStart �
i
or
i
Touch Settings > Start Bowie-Dick-Test
10 Test programs
10.1 Vacuum test
The vacuum test is used to test the device for
leaks in the sterilization chamber�
A vacuum test should be performed in the
following situations:
– Once a week during routine operation
– During commissioning
– After operating pauses longer than 2 weeks
– After replacing the door seal�
Perform the vacuum test with the unit cold and
dry�
i
Switch on the device�
i
Under Settings > Maintenance > Diagnostic
Functions > Vacuum Test touch Start �
Result:
A vacuum test is taken to be passed if
the leak rate does not exceed a pre-
scribed value and the temperature does
not fluctuate by more than +-3 K during
the test�
Recording the vacuum test
The Hygoclave 90 can also generate re-
cords for the vacuum tests performed�
These are not saved automatically; they
can be saved manually�
vacuum tests do not receive their own
batch number, as they are not a steriliza-
tion program�
i
Tip on Actions > print / copy records �
i
Save a record on a pre-selected output
medium�
EN