Pump and Flow Control
Determining the Solvent Composition

Manually

For non-controlled pumps, solvent composition (see %B, %C, %D) is set directly on the instrument (also, refer to the Operating Instructions of the instrument).

For controlled pumps, Chromeleon features the appropriate controls (sliders, edit fields, switches, etc.). Depending on the control panel layout, you can set the values for %B, %C, and %D via either a slider or an edit field.

• Use the mouse to move the slider of a gauge in the desired direction.

• Type a value in an edit field and press <Enter>.

• To determine a gradient, select Flow on the Control menu (also, see  Determining a Gradient).

Programmed

To change the solvent composition via the program, enter the following commands in the Program:

If you enter the command several times for at least one component, this input results in a % Gradient.

For more information, refer to How to: Creating and Modifying Programs  Creating a Program.