• To edit a step, highlight it and select the field to edit within it, make the edit, and then tap
Add/Edit Step
on the control tablet when done.
• To add a step, specify the new time (in seconds) and a pressure point, and then tap
Add/
Edit Step
on the control tablet when done.
• Delete Step – Deletes the selected step.
• Preview then Save – Brings the new profile into the Manual Profile screen, where you can
run/verify it, and then save it.
• Back – Returns to the most recently opened screen.
4.3.4.3 Manual Mode
Opening the New/Edit Profile screen in Manual Mode allows you to create new pressure profiles
via real-time control of the manifold pressure.
This capability is most useful during method development, when you can visually observe liquid
flow rates through the columns/wells and adjust the pressure up or down accordingly.
Figure 4–13: New/Edit Profile screen, Manual Mode
Function details:
• Define Pressure Grade (High, Middle, Low) – Appears when you initiate any New/Edit Profile
mode, allowing you to select the pressure scale displayed on the
y
axis. Once you make a
pressure grade selection, the New/Edit Profile screen opens with the upper limit set to the
selected range.
See:
Image "Define Pressure Grade dialog box, all modes" in section
.
• Start – Begins the time clock and concurrently switches the label to "Done".
• Done – Stops the time clock and ends the profile generation.
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