9 Function checks
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9 Function checks
Automatic functional checks
The electronic parameter control subjects the interaction of the sterilization-relevant parameters pressure, temperature
and time to constant automatic monitoring. The steam sterilizer }process evaluation system compares the process para-
meters during the program with each other and monitors them in terms of their threshold values. The steam sterilizer
monitoring system checks the device components for their functionality and their plausible interaction. Should the para-
meters exceed pre-set threshold values, the steam sterilizer emits warning or malfunction messages. If necessary, it
interrupts the program with appropriate information. When the program has ended successfully, the corresponding mes-
sage will be shown on the display.
Manual functional checks
You can follow the program run on the display via the values displayed there. You can also use the log recorded for
every program to determine its success, see Logging [}page39].
Batch-related checks
Helix test body system
MELAG recommends testing the functional reliability of the steam sterilizer using a Helix test body system at least once a
month.
For this purpose, stockists offer specific dental test body systems as indicator and batch monitoring systems, e.g. Dental
BMS (batch monitoring system) by GKE. This system consists of a test body, the Helix, and an indicator strip, and is
used in the Universal-Program S at MELAquick.
1. Clean the door gasket before the program start.
2. Carry out this function check in the Universal-Program S.
Water quality of the feed water
You can access the water quality on the display at any time during a running program when the steam sterilizer is
switched on.
u
Press and hold the '-' key until the display shows Conductivity.
The }conductivity is displayed in µS/cm.
As soon as you have released the '-' key, the display returns to its
previous state (e.g. initial state).
Programm
Start-Stop
-
+
Conductivity
7 µS/cm
Pre-heating temperature of the sterilization chamber
u
Press the '-' key twice. When pressing the first time, press shortly.
When pressing the second time, hold the key depressed.
The conductivity display disappears and the preheating temperature
in the sterilization chamber will be displayed.
Programm
Start-Stop
-
+
AIN4: Temp. preheat.
120°C