5
Click on the Continue button to restart the fractionation in the next tube.
Reset_Frac_Position
The instruction Reset_Frac_Position resets the fraction collector. This means that frac-
tionation set to start at next position will start in the first position. The instruction will
reset next position for all tube types.
1
Select menu System Control:Manual:Frac in UNICORN.
2
Select the instruction Reset_Frac_Position in the Frac list.
3
Click on the Execute button.
AccumulatorWash
The accumulator used to eliminate spillage at tube change can be manually washed
with the instruction AccumulatorWash.
1
Start a flow of 10 ml/min manually using the system pump.
2
If the fraction collector is connected to any other port than port 1 in the Outlet valve,
you must manually switch Outlet Valve to the other port. Select menu System Con-
trol:Manual:Flowpath in UNICORN.
3
Select the instruction OutletValve and select the desired port.
4
Click on the Execute button.
5
Select menu System Control:Manual:Frac in UNICORN.
Frac-920 and Frac-950 Operating Instructions 28-9622-09 AC 43
4 Operation
4.3 Fraction Collector Frac-950
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