User`s guide

4-24
Operation 4
Programming a Method
A complete method program is written by pro-
gramming flow rates, solvent compositions and
operation of the outputs. The method program run
time starts at time 0.00, i.e. when the start key is
pressed, and ends at the time of the last timed
event. For example, if you program the last event at
time 20.00, then the run time is 20 minutes.
You must program every event for your method,
starting at time 0.00. For example, at time 0.00 you
must program the flow rate and composition. If
you do not program anything at 0.00 minutes, the
pump will assume the current flow rate and com-
position. For a pump which is stopped, the soft-
ware will assume a flow rate of 0 mL/min and a
composition of 100% A, 0% B, and 0% C. If the
pump is running, it will assume the current flow
rate and composition for time 0.00. It will then
operate on a gradient between these values and the
first flow rate in your program and the first solvent
composition in your program.
Menu: Number of Loops
The number of loops is the number of times that the
program will repeat itself before stopping. The
minimum value is 1 and the maximum value is 999.
# The default value is 1.
• Key in the number of loops and press Enter.
This brings you to the When finished, use menu.
Menu: When Finished, Use
At the end of a program, you can link the current
file to any of the 14 files. If you do not want to link
to any other file, press the soft key below None on
the display.
If you link to the current file, i.e. link File 3 to File 3,
the program will continue to run until the Pause
key is pressed. If both looping and linking are
programmed, the software will complete the pro-
grammed number of loops, then link to the new
file.
Programming a Method