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choices; Time or Temperature or Temperature & Pressure. This parameter applies to all the
segments in a given oven schedule. If this parameter is set to Time, the time duration is counted
from the start of the oven schedule (for the first segment) or from the completion of the previous
segment (for segments other than the first segment). If this parameter is set to Temperature, the
time duration is counted from the time when the oven temperature, averaged over the oven walls
or heated shelves, depending on if the oven has wall or shelf heating, rises above the Temperature
Set point. If this parameter is set to Temperature & Pressure, the time duration is counted from
the time when both the oven temperature and pressure reach their respective set points.
Oven Type determines which type of oven the glovebox currently have. Depending on the types
of oven, there are usually 3-5 heating zones.
OverTemp SP Abort can be set to a certain temperature where the oven schedule will abort if the
oven temperature overshoots by the amount of the temperature value. To disable this feature,
simply put 0 as the temperature value.
Check the Batch Log to generate batch report for the selected schedule.
Oven Assignment determines which oven can use the selected schedule. Selecting all means all
ovens can use the schedule.
The following (Figure 3) is an example oven schedule containing one segment and the control
method is set to Time. The Segment Condition is set to Backfill for 1 hour and then Vacuum for
another hour.
Figure 3 Example Oven Schedule
Editing and Creating Oven Schedule
Oven schedules are created and edited using a visual schedule editor (Figure 4). The Schedule
Editor is accessed by clicking the “GloveBox” Main window menu, then select “Pump Down and
Oven Settings”. The user must have schedule editing “password rights” to be able to change the
oven schedule parameters or create new schedules.
