Chapter 12: Qualification Reports
ValProbe RT User Manual 134
Group Max-Average per Timestamp: The Grp. Max-Avg/ Timestamp calculates the Group
maximum-average value for each timestamp. The criteria define the maximum allowable
difference between the maximum value and the average value for all timestamps during the
cycle. The criterion “Passes” if all Group Max-Avg temperature timestamps are equal to or less
than the defined criteria.
Group Average-Min per Timestamp: The Grp. Avg-Min/ Timestamp calculates the Group
average – minimum temperature for each timestamp. The criteria define the maximum
allowable difference between the average temp and the minimum temp for all timestamps
during the cycle. The criterion “Passes” if all the Group Avg-Min temperature timestamps are
equal to or less than the defined criteria.
Group (Max of Max)- (Min of Min): The Grp. (Max of Max) – (Min of Min) calculates the
maximum value for all sensors in a group and all timestamps, minus the minimum value for all
sensors in the group for all timestamps in the cycle. The criteria define the maximum allowable
difference between the (Max of the Max) and the (Min of the Min) for the Cycle. The criterion
“Passes” if the calculated value is equal to or less than the defined criteria.
Accumulated Lethality for (Exposure) Cycle: The Accumulated Lethality / Exposure Cycle
criteria is only selectable if the lethality condition is defined and included in the Setup or edited
in the edit calculations tile. The calculated lethality value applies only to the selected cycle.
The calculated value is the minimum Accumulated Lethality for all sensors in the group. The
criteria define the Minimum Accumulated Lethality that must be reached by all sensors in the
Group. The criterion “Passes” if the calculated value is equal to or greater than the defined
criteria.
Accumulated Lethality as in “Edit calculations”: The Accumulated Lethality as in Edit
Calculations criteria is selectable if the lethality condition is defined and included in the Setup
or edited in the edit calculations tile. The calculated lethality value does not apply to the
selected cycle, but rather to the Calculate Lethality field in the “Edit Calculations” tile. The
calculated value is the minimum Accumulated Lethality for all sensors in a group. The criteria
define the Minimum Accumulated Lethality that must be reached by all sensors in the Group.
The criterion “Passes” if the calculated value is equal to or greater than the defined criteria.
Note: This is the only criterion that does not use the cycle defined in the criteria template, but
the definition of the lethality calculation set in the Edit Calculations screen.
Only lethality per cycle or per Edit Calculations can be calculated within the same
report. The selection of one automatically deselects the other one.
T-SAT T / Timestamp - Temperature - Saturation Temp Band per Timestamp: Steam
quality is analyzed by comparing the measured process temperature value against the
calculated Saturation Temperature derived from pressure measurements for every timestamp.
The pressure sensor used as the reference is displayed. The criterion describes a steam
quality band and is specified as the Min and Max allowable deviation from the measured
temperature to the calculated Saturation temperature. The criterion “Passes” if all values are
equal to or within the defined range.
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