Thermo Scientific Vanquish VH-D10 Operating Manual page 138

7 • Maintenance and Service
Flushing the T piece
Back-flushing
Page 138
1. Remove the back-flush plug (no. 3) from the T piece (no. 1d).
2. Connect the back-flush waste line (no. 2) to the back-flush capillary
(no. 1) and route the free end of the tubing to waste.
The image below shows the finalized setup for flushing the T piece.
Figure 40: Setup for flushing the T piece
No. Description
A To the outlet of the pump
B Back-flush waste line
C Waste container
3. Turn on the pump flow with the pressure value determined in
the Determining the required pump flow section.
4. Flush the T piece for 1 minute.
5. Stop the pump flow.
If liquid dropped out on any surfaces, dry the surfaces with a tissue.
6. Back-flush the flow cell (see the Back-flushing section below).
1. Disconnect the back-flush waste line (no. 2) from the back-flush
capillary (no. 1).
2. Connect the flow cell capillary to the T piece (no. 1d).
3. Connect the back-flush waste line (no. 2) to the flow cell inlet.
4. Route the free end of the back-flush waste line (no. 2) to waste.
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
outlet and the flow cell capillary for connection to the flow cell (no. 1e).
Diode Array Detectors (VH-D10)
Operating Manual