Waters Autospec Premier Operator's Manual page 149

5. Close the vent valve (to the right-hand side of the source side lock) by
turning it fully clockwise.
6. Open the source side lock pump valve (on the right-hand side of the
source side lock).
The source side lock pump valve is open when its handle is in line
Tip:
with the associated pipework.
7. Wait for a few seconds, to allow the side lock to be roughly pumped down
(evacuated).
8. Hold the probe handle in the retracted position and open the source side
lock isolation valve (on the top of the source side lock).
Vent valve
Pump valve
The solids sample introduction probe 6-11