18
User Manual
"Steam sterilizer Laboklav 55 - 195
"
3.4. Description of program steps
The sterilizing process
in steam sterilizer line Laboklav xxx (see drawings above) contains the
following program steps:
-
Preheating
The steam generator and if programmed the chamber is preheated until reaching a specified
temperature. It takes about 5 to 10 minutes. If the chamber temperature is high enough, it decreases
the preheating time or preheating is switched off.
-
Deaeration
In all liquids programs a gravity deaeration is preselected automatically.
In versions B, M, MS and MSL - (no vacuum available) the deaeration for Instruments and Destruction
is preselected as a pressure purge cycle. It works with 3 or 5 pressure purges between
170 and 120 kPa absolute pressure (number of pressure purges depends on start temperature).
In versions V, MV, MSV and MSLV the deaeration for Instruments and Destruction programs works
with fractionated pre-vacuum.
-
Heating
While preheating the chamber is filled with steam up to the preset pressure and temperature. In
preheating phase a deaeration clock is working in most of the programs.
-
Sterilizing
While sterilization phase the unit is keeping the set temperature over the sterilization time. In case
over lower temperature that set temperature, the timer for the sterilization time is stopping.
-
Pressure removal
The steam is removing from chamber until reaching programmed pressure in chamber.
-
Cooling
This is programmed for liquids only. Depending on the integrated fast cooling options different cooling
versions are possible: passive or active, in active cooling slow, fast or forced is possible.
-
Drying
(for versions V, MV, MSV and MSLV only)
Program is drying with vacuum with a programmed drying time. Alternate an intermitting venting and
vacuum cycle is possible. The venting function is automatically using the venting air filter.
-
Venting
The program is using for the venting function the integrated venting air filter automatically. The
function works until reaching the programmed air pressure.
-
Equalizing
For additional safety the device is waiting a few seconds after reaching the program finish to make
sure that no measurement mistake has set the program to finish. Equalizing time depends on
program and sterilization goods and can be different.
-
End of
Program
After the end of a program, the control waits for the operator to acknowledge the program! This state
is indicated by a flashing display and a short acoustic signal. The acknowledgment is done by
pressing the stop button (11). The lid is unlocked automatically and then opened gradually.
