Table of Contents
Advertisement
+
CombiFlash® Rf
User Manual
• SPAN - Span voltage defines an increased voltage
applied as the mass increases. As with the offset,
larger values increase fragmentation.
• CLOSE - Closes the window.
6.3.11 Auto Prime/Valve Wash
The Auto Prime feature is a convenient way to prime the
pumps with solvent. This should be done whenever new
solvents are connected to the back panel ports, or to change
between the available solvents. An Auto Prime pumps 50 mL
of the selected strong solvent, drawing it in through the back
panel port, through the pump, and out the waste port. On Rf+
systems, including those equipped with 4x, the injection valve
is included in the fluid path to wash the valve. The Auto Prime
then does the same for the selected weak solvent. By priming
Solvent A last, the system is ready for the starting mobile
phase of the next run.
The Auto Prime window is opened by selecting the
T
>A
OOLS
window contains the following controls:
• Progress bar — This bar displays how much of the
solvent has been pumped.
• Solvent Selections — There are 4 solvent selection
lists labeled from 1st solvent through 4th solvent.,
describing the order in which solvents will be pumped.
The solvent choices for each list are those defined by the
CONFIGURATION [6.3.10] window. (Rf+ systems,
including those equipped with 4x). It is recommended
that the solvent be primed in order of decreasing solvent
strength, with the weakest solvent primed last.
• Play button — Click this button to start the Auto
Prime.
• Fast Forward button — Click this button to skip to the
next Auto Prime step.
• Cancel button — Click this button to stop the Auto
Prime and close the window.
6.3.12 Manual Control
Manual Control can assist with method development,
maintenance of the system plumbing, and system
6-34
P
/V
UTO
RIME
ALVE
W
menu command. The
ASH [6.2.4.1]
Advertisement
Table of Contents
