User`s guide

4-36
Operation 4
When the file is being run again, if any of these
parameters has been changed, the following mes-
sage will appear after Run has been pressed, Note!
Setup has changed since file creation Ok. Press
Ok. You can choose to keep the setup parameters
which were stored with the method program or
you can choose to keep the setup parameters which
exist currently. Press Yes to keep the setup param-
eters which existed when the file was created. Press
No to keep the current setup parameters. After
pressing one of these keys the pump will automati-
cally start running the file.
If a program has a link to a file which has nothing
stored in it, the program will not start when Run is
pressed. The message Link file does not exist is
displayed and the alarm will sound.
After pressing Run, the bottom line of the display
changes to Roll/Menu/Pause.
• Pressing Roll will display in turn:
- current file/loop number/running time and
program time
- current file/loop number/current flow rate
- the % of solvent A
- the % of solvent B
- the % of solvent C
- the time that the 305 is waiting on an input
- the programmed injection volume
Pressing Roll once more brings you back to the
Run screen.
• The Menu soft key has the same function as
before.
• Press Pause to freeze the program. The pumps
will continue to run, keeping a constant flow rate
and composition. The pumps will stay in this
state until another key is pressed. When Pause is
pressed the screen changes to Stop/End/Cont.
- Stop will cause the pumps to stop. The method
file remains in the Pause state.
- End will cause the termination of the method
file without stopping the pumps. The pumps
will continue with the flow rate that existed
when the pumps were paused. The screen
returns to the Program mode Ready-to-Run
Screen.
- Cont will cause the program to continue from
the point where it was paused.
Running a Method Program
The input Start/Stop has the
same effect as the End soft key
in the Program mode.
To terminate a program
completely and stop the flow,
you must press Stop followed
by End. If a method program
has terminated and the pump-
ing system is still running,
press Cond followed by Stop.