Method Editor app PDA Detector view

The 2D Channels option selector: Enable or disable 2D data acquisition.

When enabled: The 2D Channels List table appears for you to specify up to eight channels to record. Click the plus and minus icons to add and delete rows from the table. When you add a row, the Channel Details workspace appears, where you can edit the selected row's data. Click the check mark icon to update the selected row's data with your changes, which closes the data edits workspace. Or, use the X icon to delete the added row. When the data edits workspace is closed, click the trash can icon to delete all table entries. Before the deletion is completed, you must confirm this action by clicking Delete in the box that appears. Or, to preserve the contents of the table, click Cancel. After deletion, the table returns to its one row of default contents.

The 3D Data option selector: Enable or disable to collect λ-range spectra for every sample interval.

When enabled: Two λ Range (nm) form fields are available to specify the lower-limit and upper-limit range according to the expected peak widths.

The Set Data Filter option selector: Enable or disable application of the filter during data acquisition.

When enabled:

• The Filter Mode option selector appears with the choices Slow, Normal, Fast, and Custom.
• The Filter Time Constant (s) field appears to specify a value based on your selection for Filter Mode. This field becomes editable when you select Custom for Filter Mode.

The Enable Runtime Events option selector: Enable or disable timed events during data acquisition.

When enabled: The Events table appears, allowing you to define up to 50 events. To the right of the table, the Event Row Details workspace also appears, allowing you to edit the default data in the table's first row. Similarly, use this workspace to edit the data of any selected row. By clicking the arrowhead in the Event field shown, you can define events as either Lamp or Autozero. Selecting the Lamp option for Event displays the Parameter option selector for the choices On and Off. To add your entries to the Events Table, click the check mark icon, which closes the data edits workspace. Or, click the X icon to close the workspace. When the data edits workspace is closed, to delete all table entries, click the trash can icon. Before the deletion is completed, you must confirm this action by clicking Delete in the box that appears. Or, to preserve the contents of the table, click Cancel. After deletion, the table returns to its one row of default contents.

The parameters listed here should rarely be changed. Waters recommends leaving the default values specified.

When Custom is selected, the following items appear:

• The Interpolate 2nd Order Filter Region option selector: Enable to suppress order filter shadow feature on spectra (345 nm range).
• The Interpolate 656 nm Line Region option selector: Enable to suppress order filter shadow feature on spectra (656 nm range).
• The Slit Width option selector with the choices 35, 50, 100, or 150 µm.