Exchanging The Mixing System - Thermo Scientific thermoscientific Vanquish Pumps C Operating Manual

10.1.2 Exchanging the Mixing System

When
Follow these steps
10.1.2.1 Removing the Mixing System
Preparations
Follow these steps
Pumps C, Pumps F ( VC-Pxx, VF-Pxx)
Operating Manual
Changing to a mixing system with different volume
1. Remove the mixing system with which the pump is shipped (see the
next section).
2. Install the new mixing system. Follow the sequence of steps for the
mixing system that you want to install. See:
¨ Installing a Mixing System with a Volume higher than 100 µL
(} page 240)
¨ Installing the 100 µL Mixing System (} page 243)
¨ Installing the 35 µL Inline Filter Set (} page 245)
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.
NOTICE
Turning the static mixer in the mounting bracket when loosening or
tightening capillaries can damage the mounting bracket.
To prevent the mixer from turning in the bracket, hold the mixer with an
open-end wrench when you loosen or tighten capillaries on the mixer.
1. On the static mixer outlet, disconnect the capillary that connects the
static mixer to the autosampler injection valve.
2. If you want to install the 100 µL mixing system or 35 µL inline filter
set: Disconnect the other end of the capillary on the autosampler
injection valve and remove the capillary.
3. Disconnect the capillary mixer on the purge/sensor unit.
10 • Modifying the Pump for Specific Applications
Page 239