Pressure limits can be adjusted to match the pressure limits of a
column. If the pressure limit is exceeded, the pump will stop and an
alarm will sound. For now, set the high limit to 700 psi and the low limit
to 20 psi.
5. Flushing the System through to the fraction collector.
With the gradient pumps stopped, move the inject valve back to
position L (Load) by clicking radio button L (AVR7-3) on the Manual
Screen.
Using the Manual Screen, set the pump flow rate at 1.0 ml/min and start
the pump. Water will flow through the UV and conductivity flow cells
and to the fraction collector, as described below.
Using a Model 2128 Fraction Collector
Connect the Model 2128 Fraction Collector by inserting the gray bus
cable between it and the workstation. When it is connected, it will
appear in the Manual Screen, as shown in Figure 2.
Fig. 2. Manual Control Screen showing Model 2128 Fraction Collector.
BioLogic Duo-Flow - Default - no method
File
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Utilities
Options
Edit
Method
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Method
New
Run
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Manual
Setup Protocol
wash
load
1
2
Run
Notes
Advance
Gradient Pump: F-10
UV
0.00 ml/min
0 %B
438 psi
-0.00181 AU
Fraction Collector
START
Gradient pump: F-10
Inlet A:
1.00
100
0
Inlet B:
Flow rate:
ml/min
%
%
High
limit:
0
1000
Low
limit:
psi
AVR7-3 at port 4
SVT3-2 at port 1
SV5-4 at port 2
P
L
2
1
2
1
3
4
STOP
START
STOP
Set
psi
Tube number:
ml
Volume left:
Report
PostRun
Log
ON
Window
Help
Mode:
System
Local
Start Tube:
End Tube:
Fraction size:
1
1
128
1.00
Rack:
Rack 1 (128 tubes)
I
AVR9-8 at port 5
3
7
8
2
6
5
4
I
Conductivity
47.5 mS/cm
0.089 Volt
7.00 pH
SIM2/pH
SIM1/SIG
Chart Recorder
Signal Import Module
SIM 1 and SIM 2 connected
UV Detector
Conductivity
range(mS/cm):
500
UV range (AU):
0.1
ON
OFF
Event mark
ON
OFF
Zero Baseline
Flowrate of the gradient pump
5
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