Phases are the sections of a reaction which allow to divide the run
into parts with different parameter settings. Each phase may have different
settings concerning the sample count and sample frequency as well as the
instrument settings. To visualize the different reaction stages, the phase
information can be displayed in the trend view as well as the report grid
view. The trend view shows the different phases as colored vertical bars
and hovering the mouse pointer close to a bar will show a tool tip with
additional information. The report grid inserts an additional colored
row for each phase. The option Show Phase
Information in the parameter panel
/ reaction
wizard (step 5) turns the phase information display on or off. The
following screenshot shows a sample reaction with three phases:
The phase tab of the parameter panel basically duplicates the phase
settings from Step 4 of the Reaction Wizard where the
initial phase configuration is entered. The phase tab stays accessible
while a reaction is running. The currently active phase group will automatically
be expanded and is marked by a icon.
The settings of the active phase cannot be edited except for the number
of measurements.
The phase tab with two sample phases looks like this:
Initial Delay:
Defines the initial "zeroth" phase with no measurement activity.
Only the length of the initial delay can be entered.
Phase Group:
Groups together all settings for one phase. The group can be collapsed
for a better overview. The header shows the group name and starting time
of the phase.
Endless:
Makes the phase an infinite phase. Only the measurement interval must
be defined additionally and the phase will run "infinitely"
until the user aborts the reaction. Naturally only the last phase has
the endless option.
Comment:
A comment describing the current period may be entered for each reaction
phase. If the phase information display is activated, the comments are
shown in the report grid rows of the phase and as tool tip in the trend
view.
Duration:
Defines/displays the overall duration of the current reaction phase.
This field is linked with the other fields that are relevant for the measurement
duration ( interval, No. of measurements ). Changing the duration will
automatically adjust the interval to a correct value.
Interval:
Defines/displays the time period between two measurements. Changing
the interval will automatically adjust the No. of measurements to match
the phase duration.
Number of measurements:
Defines/displays the total number of measurements for this phase. Changing
the number of measurements will automatically adjust the interval to match
the phase duration.
Instrument Parameters:
Defines the number of scans and the instrument gain for the current
phase.