GE AKTA avant User Manual page 168

5 Operation
5.4 Prime inlets and purge pump heads
5.4.1 Prime buffer inlets and purge system pumps
Step
8
Purge System Pump B
If the priming was done thoroughly and the final buffer was drawn all the way into the
syringe and the validation of the priming showed that there was no air left in the pump
it is not necessary to purge System Pump B.
However, if the pressure signal indicated air bubbles left in the pump, follow these in-
structions to purge both pump heads of System Pump B:
Step
1
2
168
Action
Check that there is no air left in the pump by following the instructions in
Validate prime or purge of System Pump A or B or Sample Pump, on page 172.
If air bubbles are indicated, follow the instructions in Purge System Pump B,
on page 168
Action
Make sure that the piece of waste tubing connected to the injection valve
port W1 is placed in a waste vessel.
In the Process Picture:
Click the Injection valve icon and then click System pump waste.
•
Result: The injection valve switches to waste position. This is necessary
to achieve a low back pressure during the purge procedure.
ÄKTA avant User Manual 29035184 AE