Fo (Sterilization Optimization) Configuration - ABB ScreenMaster RVG200 Operating Instructions Manual

ScreenMaster RVG200
Paperless recorder
7.9.6 F (sterilization optimization) configuration
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Note.

The totalizer tabs are displayed only if the totalizer option is enabled.

F configuration is applicable only to analog totalizers.
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
Current F values are displayed in the Indicator view – see Section 4.5.2, page 31 (Operation) and
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Section 7.8.3, page 84 (Configuration), respectively.

Only totalizer A on all recording channels can be configured to display an F
configured to display an F
Calculation
The recorder's F standard sterilization calculation is based on Ft @ T of 121.1 °C and Z of 10 °C where
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Ft = equivalent sterilization time of the sterilization procedure under temperature (T) conditions with a given
Z value.
The recorder also adjusts Ft to compensate for changes in temperature in order to achieve a constant
sterilization affect. The value used is D; a time value with a default setting of 1 minute.
The F algorithm used by the recorder is:
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
=
F SampleTime
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The result of the F calculation is displayed in minutes in the Digital Indicator view (see Fig. 4.6, page 31)
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and in the Totalizer log (see Fig. 4.10, page 35).
Totalizer A
Setup
Mode
Wrap enable
108
value, totalizer B on the same channel is disabled automatically.
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  T 121.11  Z  
–
     
10
Set to F .
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If
Wrap enable
value once the
count
If
Wrap enable
value is reached.
Note. A wrap pulse, with a duration of 2 seconds, occurs if the total
reaches the
is set to Off, the wrap pulse becomes active when the
enable
Predetermined count
is reset. The pulse can be assigned to a relay, digital output or digital
counter.
previous 
+
60 F
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is set to On, the total is reset automatically to the
Predetermined count
is set to Off, the count stops when the
value and
Predetermined count
value is reached and remains active until the F
7 Configuration
value. If totalizer A is
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value is reached.
Predetermined count
is set to On. If
Wrap enable
OI/RVG200-EN
Preset
Wrap
value
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