ChromeGate 3.3.2 Software Manual - KNAUER Advanced Scientific ...

142 Creating an Instrument Control Method
Fig. 209 Gradient modify window
In the gradient spread sheet the elapsed lines are grayed. The red line
shows the actual gradient status. The yellow ones are that which are
open for modifying.
The Gradient Modify allows for changing the gradient table by adding
new lines of freezing the gradient for a defined time.
To modify the gradient program, enter the time for the new line and the
desired values in the fields on the top of the window. To change an
already existing time line, enter this time in the “Time” field and the new
values. Clicks on insert the new or modified line into the
gradient program. The changes by one or more committed lines becomes
only active (send for execution to the pump) by a mouse-click on the
button . You will see then the new line(s) in the gradient
spread sheet.
Due to that the complete gradient in the pump will be replaced with a new
one, the run time on the pump’s display will start with time 0.00 min. This
will not touch the method run time.
Fig. 210 Gradient table modify window
To delete any line of the gradient program, enter the time of the line to be
deleted and press the and then the
button.
You can also freeze the current gradient status for a time you have
entered by pressing the button.
Fig. 211 Gradient modify window freeze gradient
This will extend the pump table and therefore also the pump’s run time.
In the following example the gradient (100% A / 0% B – 0% A / 100% B in
10 minutes) will be freeze for 2 minutes (from 3.34 – 5.34 minutes: at
3.34 minutes the freeze-command was sent). The gradient freeze will be
sent and executed, if you click on the -button.