Technical data
Lexa | Instructions for Use | MN-111 Med ENG Rev14 | 03/04/2023 | © W&H Sterilization Srl
87
Code
Phase
Description
STLZ
Sterilization
phase
Sterilization condition (pressure and temperature) maintained for the time specified for the selected cycle. During this phase the unit controls
the theoretical temperature (pressure converted in temperature, because of physical behaviour of water) and the steam temperature inside the
chamber. The value must be between the sterilization temperature band, and the difference between them must be lower than 3.6 °F (2 °C). If
the temperature drops below the sterilization temperature band a restart process procedure is automatically executed by the sterilizer
(according to ST55). The sterilizer controls the sterilization condition through steam generation. The steam generation is controlled by a PID, that
modulates the electrical power using as feedback the instant average between theoretical and internal temperature.
DRY
Exhausting
drying phase
The objective of this phase is to dry the load placed in the sterilizer chamber. The drying phase is divided in two step:
n
The first step is the depressurization phase, when most of the steam is removed from the chamber. The second step is the drying of the
load.
n
Duration of the DRY phase depends on the selected profile.
LEV
Levelling
phase
Pressure inside the sterilization chamber is leveled to the atmospheric pressure.
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