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FRONT PANEL CONTROL | 333/334 HPLC PUMPS
FRONT PANEL CONTROL
Mixing Test
This test is based on an ASTM method for determining the linearity, accuracy, and repeatability
of a binary composition gradient. The test automatically implements a program consisting of
three loops.
1. From the Start screen press Edit > GLP > Mix.
2. Navigate to the Create Test File to File field with the Down arrow.
3. Key in the file number.
4. Press ENTER.
5. Run the file assigned as a method program.
Running a Method Program
Enter the file number (if necessary) and then press the Run soft key from the Start screen. The
current method file displayed on the Start screen will begin. If you wish to select a different
method file, visit the File Directory screen by pressing Edit > File.
After pressing Run, screen displays the flow rate and composition of the mobile phase and the
pressure detected by the pressure sensor.
Press the Edit soft key to view or modify any file during a run.
Press the Pause soft key to interrupt the method program; however, the pump will continue to
operate.
Press the Resume soft key to restart the method program from the point it was interrupted.
Press the End soft key to stop the method program; however, the pump will continue to operate.
Press the Stop soft key to stop pumping; however, the method program will continue to run.
When a method program file comes to an end, the pump continues to pump at the flow rate
and composition that were applicable at the last programmed event; unless the flow rate is
set to 0 at the end of the program or the file links to another method program file to stop the
pump.
Post Run Information
Press the Watch soft key at the Pump Control screen to view the following:
● The minimum and maximum pressures attained during the last run.
● The time taken per cycle for each piston.
For a complete log of events, use the Audit Trail feature.
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