Coltene BioSonic UC150 Benutzerhandbuch Seite 18

• Size of the load being cleaned
The more instruments placed into an ultrasonic bath, the less effective the cleaning
cycle will be. It is not recommended to place instruments in the basket so that they
overlap, as open surface areas will be easier to clean. Filling a basket with clear space
between instruments should lead to a more effective cleaning cycle.
• Amount and type of soil to be removed
Some contaminates have a stronger bond to the items being cleaned and may need a
longer cleaning cycle. Also, the amount of soil on items being cleaned has an effect on
the time required to complete a cleaning cycle.
• Type of cleaning solution used
Not all kinds of cleaning solutions are the same in regards to cleaning effectiveness.
Some cleaning solutions work well on some contaminates, but not as well on other
contaminates.
• Type of water
Not all water is the same and may vary in level of contaminates and hardness which can
affect the level of cavitation in the solution. This can increase or decrease the time of a
cleaning cycle.
• Solution temperature
The temperature of the solution can have an impact on the effectiveness of the cleaning
cycle. The formation of cavitation events increases with temperature and the
corresponding reduction in the fluid surface tension. Also, some solutions are more
effective at a higher temperature, while others are more effective at a lower temperature.
Consult the instructions of the solution for any requirements or recommendations from
the manufacturer.
• Amount of soil in the solution
Repeated use of the same solution bath will lead to decreased performance as the bath
becomes saturated with soil. Continue reading below for guidance on frequency of
solution change.
• How long instruments have been soiled prior to cleaning
Soil should not be allowed to dry on instruments prior to cleaning; they should be
processed immediately following a procedure. If they cannot be cleaned immediately
following a procedure, it is recommended they be placed in a soaking solution so the
soil does not harden on the instruments, which would increase the time of the cleaning
cycle. The BioSonic ST16 Dental Soaking Tray is an example of a device designed for this
purpose.
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