User manual

42 Bio-inert Quaternary Pump User Manual
3 Installing the Pump
Priming the System
1 Open the purge valve of the pump
2 Set the flow rate to 5 mL/min.
3 Select channel A1
4 Turn the flow on
5 Observe if the solvent in the tubing of channel A1 is advancing towards the
pump. If it isn’t, disconnect the solvent tubing from the solvent selection
valve, attach a syringe with a syringe adapter and pull the liquid through
the degasser. Reattach the tubing to the solvent selection valve.
6 Pump 30 mL isopropanol to remove residual air bubbles.
7 Switch to the next solvent channel and repeat steps 5 and 6 until all
channels have been purged.
8 Turn the flow off and close the purge valve.
NOTE
When priming the vacuum degasser with a syringe, the solvent is drawn through the
degasser tubes very quickly. The solvent at the degasser outlet will therefore not be fully
degassed. Pump for approximately 10 minutes at your desired flow rate before starting an
analysis. This will allow the vacuum degasser to properly degas the solvent in the degasser
tubes.