Agilent 1200 Preparative Pump User Manual 59
Using the Preparative Pump
4
Setting Up the Pump
Figure 17 Setup dialog box (gradient pump)
In these dialog boxes you can specify the following parameters:
Flow: Flow rate delivered by the pump. For gradient systems the flow
parameter defines the combined flow delivered by the system on channel A
and B. The maximum settable flow is 100 ml/min. For best performance a flow
above 5 ml/min should be chosen. The pump can be operated at lower flow
rates. However a slightly higher pressure ripple will be observed. In addition
the system pressure should always be kept above 20 bar.
Stop Time: The Stop Time defines the end of your analysis run. After the stop
time all gradients are stopped and the pump settings return to the initial
values. Typically, the Stop Time of the pump specifies the Stop Time for all
other modules in the LC system.
Post Time: During the Post Time the instrument stays in the Not Ready state
and delays the start of the next analysis. The Post Time allows the column to
equilibrate after a gradient run.
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