Thermo Scientific thermoscientific Vanquish Pumps C, Руководство по эксплуатации

Страница: 105 / 296

6 • Operation
Pumps C, Pumps F ( VC-Pxx, VF-Pxx)
Operating Manual Page 105
Follow these steps
1. In the Chromeleon software, set the channel that you want to purge
to 100%.
2. Optional: In the Chromeleon software, adapt the settings for the
purge flow or purge time if required.
3. Start the purge cycle. You can start the purge cycle from the
Chromeleon software or by pressing the PURGE button on the
keypad.
The purge cycle ends automatically when the specified purge time
ends. If you want to stop purging before the purge time ends, turn
the purge off from the Chromeleon software or by pressing the
PURGE button on the keypad.
4. Repeat the above steps for all channels , including those that are not
used for the application.
6.8.2 Manual Purging
Manual purging requires user interaction. The user must open and close
the purge valve by hand to direct the solvent to waste, through the
purge outlet on the purge/sensor unit.
The procedure depends on the reason for purging:
• When the pump is operated for the first time or when solvent lines
are empty, follow the steps in
Purging with First Time Operation or
Empty Solvent Lines ( } page 105) .
• To remove air bubbles, or to change to a different type of solvent, or
when using a fresh reservoir of solvent after a longer period without
flow, follow the steps in
Purging for Removing Air Bubbles or
Changing to Different Solvent Type (
}
page 108) .
6.8.2.1 Purging with First Time Operation or Empty Solvent Lines
When
• The pump is operated for the first time
To flush out the isopropanol that is present in some components of
the pump when the pump is shipped from the manufacturing site
• One or more solvent lines have been empty
TIP To remove air bubbles or to change to a different type of solvent,
follow the steps in Purging for Removing Air Bubbles or Changing to
Different Solvent Type (
}
page 108) .