Thermo Scientific Vanquish VH-P10-A-02, Operating Manual

Page: 105 / 238

6 • Operation
Vanquish Pumps (VH-P10-A-02) Operating Manual Page 105
6.9.2.2
Installing the Mixing System
When
•
For highest sensitivity when mixing ripples interfere with the
detection, for example, when you use UV absorbing solvents or
solvent additives that amplify mixing ripples by interaction with the
stationary phase
•
For TFA applications
TIP Installing a mixing system affects the gradient delay volume, dwell
volume, and ripple (see section 6.9.2, page 102 ).
Parts required
Optional mixer kit, comprising the mixing system and required
installation material (mounting bracket and screws)
Tools and additional items required
•
Screwdriver, Torx 10
•
Solvent suitable for purging
Preparations
1. To flush out harmful substances, purge the pump with an
appropriate solvent.
2. To remove harmful substances from the components in the flow
path after the purge unit, have the pump deliver for a short time
with the solvent that was used for purging.
3. Turn off the pump flow and wait until the system pressure is down
to zero.
Follow these steps
1. Unplug the cable of the seal wash detector from the DROP DET port.
2. Unplug the cable of the right pump head from the P-WORK port if
necessary.
3. Remove the right Y-connector (see section 7.6, page 134 ).
4. Remove the capillary mixer (volume: 25 µL) that connects the purge
unit and the inline filter when the pump is shipped from the
manufacturing site.