Optimizing The Performance Of The Pump; General Guidelines - Thermo Scientific Vanquish VH-P10 Operating Manual

6.9

Optimizing the Performance of the Pump

6.9.1

General Guidelines

Vanquish Pumps (VH-P10) Operating Manual
This section provides information for best performance of the pump and
gives hints on what you can do to optimize the performance further.
To optimize the pump performance, consider the following general
guidelines:
•
Observe the information about the use of solvents and additives.
•
In the following situations, consider replacing the inline filter (plus
capillary mixer) with which the pump is shipped with a mixing
system:
♦
To reduce the mixing ripple when you use UV absorbing solvents
or solvent additives
♦
For TFA(trifluoroacetic acid) applications
TIP Installing a mixing system affects the gradient delay volume,
dwell volume, and ripple (see
•
Always use the built-in vacuum degasser.
•
Purge the pump when changing to a different type of solvent or
when restarting the pump after periods of inactivity.
•
Monitor the usage of specific pump components that are subject to
wear and stress and schedule appropriate maintenance intervals
(see section 7.4.4 Predictive Performance, page
TIP Shut off valves for solvent lines are available as an option (see
section 6.9.3, page 106). These valves allow you to shut off the solvent
flow through the system at the solvent reservoir, for example, to
prevent solvent from flowing through the system when the pump flow is
zero for a longer period.
section 6.9.2, page 100).
124).
6 • Operation
Page 99