GE akta start - Buffer Valve

3.7 Buffer valve
Description
The Buffer valve can be switched to allow the inlet of either buffer A or buffer B, or a
mixture of A and B (gradient).
DescriptionParameter
•
Indicates how many times the valve has switched be-
tween buffer A or buffer B.
•
When a valve has been replaced, the number of counts
has to be reset to 0.
•
Turn valve switches the valve between the A and B
inlet ports. This option is used for troubleshooting the
valve.
Valve switches
Instructions
Follow the instructions below to check if the Buffer valve functions properly.
ActionStep
•
Immerse the buffer inlet tubing A and B in demineralized water.
•
Place the outlet tubing from the Wash valve in the waste bottle.
1
Start the Pump:2
•
In the Settings and service screen, access Pump:Diagnostics screen.
•
Enter the desired flow rate and then start the Pump by tapping Start
flow, and then tap Back:Back to return to the Settings and service
screen.
56 ÄKTA start Maintenance Manual 29060308 AD
3 Maintenance operations
3.7 Buffer valve