Selecting A Sterilizing Program - Thermo Scientific VARIOKLAV 25T Operating Manual

Each additional time the selected program key is pressed, the cycle display shows
the available parameters for the sterilization process:
•
•
•
•
•
Parameters you can change are marked with the double-arrow symbol (see
Figure 7).
If options (acoustic signal or printer) are activated, this is shown by an indicator
light in the corner of the selected option key.
The program keys P
(Waste) programs by the responsible operator using the key-operated switch (17;
see Chapter 9). This will make your settings for programs, sterilization parameters
and options permanent.
INFORMATION
The program key P
Liquids sterilization program. With this program key, a
prevacuum of 70 kPa is drawn for deaeration (in the case of
devices with a vacuum pump). In comparison to the other
program keys, the process is only activated once to ensure
that the liquid loss remains low.
In the Liquids program, the sterilization parameters (except the vacuum) and the
options may yet be changed.
How you choose a program is described in Chapters 6.1 to 6.6. There you also will
find information, which values should be chosen for each kind of sterilizing articles.
How to set the timer, so that a sterilization cycle may automatically start at a later
point in time, is described in Chapter 6.7.
6.1

Selecting a sterilizing program

In the basic version, you have a choice of three different programs. Additional
programs may be available, depending on which options are present (Table 2).
Instruments
For sterilizing solid items (such as glassware, instruments, pipette tips or filters).
After sterilization, a rapid and continuous drop in pressure will take place until the
pressure is equal to ambient.
Destruction (Waste)
For sterilizing laboratory waste with a low liquid content, especially used
consumables (pipette tips, culture dishes, etc.), and septic or infectious material.
After sterilization, the pressure is gradually released until it is equal to ambient.
Liquids
For sterilizing liquids or culture media in open or slightly closed vessels, or for
sterilizing liquid laboratory waste to be destroyed.
03/2007
Sterilizing temperature
Sterilizing time
Removal
Multiple sterilization number (option)
Batch number
and P can be configured with the Instruments or Destruction
1 2
is solely designed for activating the
3
6 Programs
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