Chapter 8: Defining Study Setups
ValProbe RT User Manual 74
8.4. Understanding Groups
Grouping sensors is a powerful analysis tool to utilize for validation studies.
The following rules apply when assigning groups:
There must be at least one group defined in a setup. Each group must have a unique
name.
Groups should be homogeneous (similar sensor types) since calculations are
performed on all the sensors.
Assign a sensor to more than one group.
Sensors do not have to be in consecutive locations. Assign any sensor from any Logger
to a group.
As long there is no group defined, the Default Group button automatically generates
groups for sensors with the same measured variable, like temperature and pressure.
To record data from a sensor, it must be assigned to a group. Any sensor not assigned
to a group is considered unused and no data is recorded for that sensor.
• Each group can have unique header information.
• Each group can have a separate sensor layout image.
• Assigned calculations are applied for each group of sensors
• Qualification reports include unique pages for each group.
Grouping Examples:
• Using separate Distribution and Penetration sensor groups to analyze a sterilizer study.
• Using separate groups for each shelf of a freeze dryer to determine temperature
variance and having all sensors from all shelfs in a separate group for analysis.
• Utilize groups to perform validation of four separate freezers at the same time each
containing 12 sensors.
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