Buffer Valve - GE AKTA start Maintenance Manual

3 Maintenance operations

3.7 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).
Parameter
Valve switches
Instructions
Follow the instructions below to check if the Buffer valve functions properly.
Step
1
2
56
Description
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.
Action
Immerse the buffer inlet tubing A and B in demineralized water.
•
Place the outlet tubing from the Wash valve in the waste bottle.
•
Start the Pump:
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.
ÄKTA start Maintenance Manual 29060308 AD