Overlay Mode

The user can work with multiple chromatograms in the OVERLAY mode. The activation of this mode is indicated by an activated icon next to the Overlay Mode command in the File menu, an activated icon in the Overlay toolbar and the highlighted display of the OVERLAY inscription in the status bar of the Chromatogram window (located in the lower right-hand corner of the window). In the OVERLAY mode it is possible to display a larger number of chromatograms at the same time by simultaneously or consecutively using the Open command or the icon.

When a fixed range of display has not been set, the main graph will re-plot to display all chromatograms in their entirety even with the selection of variably sized chromatograms. Only the active chromatogram will display the descriptions of peaks and indicate the course of the baseline. The active chromatogram (signal) will have the relevant colored icon depressed in the Overlay toolbar. Its name will be stated in the window header and a bullet will be displayed next to its name in the list of open chromatograms (signals) in the Chromatogram menu.

The active chromatogram is also stated in bold letters in the legend on the right-hand side of the main graph. If no fixed color of the graph axes is selected, these axes always have the color of the active chromatogram.

Another active chromatogram is selected by:

• Clicking on the icon with the color of the required chromatogram.
• Clicking on its name in the list of open chromatograms (signals) in the Chromatogram menu.
• Double-clicking on its name in the graph legend.

When using a multi-detector chromatogram, the icons of signals belonging to one chromatogram will be connected by the link.

After canceling the OVERLAY mode, only the active chromatogram will remain displayed.