Thermo Scientific Vanquish VH-D10 Operating Manual page 140

7 • Maintenance and Service
Forward flushing
Page 140
1. Switch the capillary connections on the flow cell: Connect the flow
cell capillary of the back-flush capillary (no. 1e) to the flow cell inlet
and the back-flush waste line (no. 2) to the flow cell outlet.
The image below shows the finalized setup for forward flushing the
flow cell.
Figure 42: Setup for forward flushing (here: without overpressure relief
valve)
No. Description
A To the outlet of the pump
B Back-flush waste line
C Waste container
NOTICE—Flow cells are highly sensitive to high pressures
Even if the pressure exceeds the upper limit for a very short time only,
the flow cell may be permanently damaged.
If available, install an overpressure relief valve between the flow cell
inlet and the flow cell capillary for connection to the flow cell (no. 1e).
2. Turn on the pump flow and operate it at the flow rate as determined
in the Determining the required pump flow section.
3. Flush the flow cell for 2 minutes with the back-flushing agent.
Diode Array Detectors (VH-D10)
Operating Manual