ActionStep
Tap the radio button to select the required timing:3
•
Switch valve timing A (switch time 4 s)
•
Switch valve timing B (switch time 5 s)
Tap Save to save the timing.
Perform Gradient run, either by performing System performance method
or manually set the B concentration (Buffer valve) to 50%. Examine the
gradient for fluctuations.
4
If wavy gradients still are obtained, or if fluctuations on step gradient levels
are large, then select Advanced timing.
5
Result: The following screen opens.
Set switch valve time in the range of 3.0 to 5.0 s (0.1 s increments) by pressing
the up/down arrows.
Tap Save to save the optimized timing.6
ÄKTA start Maintenance Manual 29060308 AD 91
3 Maintenance operations
3.14 System
3.14.4 Switch valve timing
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