Thermo Scientific Dionex UltiMate 3000 Series Operating Instructions Manual page 73

5. Purge the pump from Chromeleon.
a) In Chromeleon, open the Commands dialog box for the pump.
b) Set the channel to be purged to 100%.
In Chromeleon, you cannot set %A directly. Thus, if %A be 100%, you have to set all
other components of the eluent to 0%.
c) Start the purge cycle. To do so, set Purge to On.
The purge cycle is performed with the selected settings (→ page 64).
d) When the specified PurgeTime has elapsed, Purge is automatically reset to Off.
e) Repeat the above steps for all channels (even if they are not used for the application)
until all air bubbles are gone.
6. Close the purge valve (turn the valve knob clockwise). Turn the valve knob only with
your hand (use no tools). If the valve knob leaks, tighten a little more. Overtightening
the valve knob can damage the cap seal.
Operating Instructions
UltiMate 3000 Series:
LPG-3400XRS Pump
Page 65