Snapshots

Introduction

A Snapshot provides information about a method run at a certain point in time. It contains information about the values of all the variables at the selected point.

Snapshot functionality is available in

  • the Method Editor, where Snapshot instructions can be inserted in a method to be recorded during the method run.

  • the Evaluation module, where you can take Snapshots from a result file using the Marker.

  • the System Control module, where you can take Snapshots during a run using the Marker.

How to view recorded Snapshots

The table below describes how to view Snapshots which have been recorded during a method run using the Snapshot text instruction.

Note: How to insert the Snapshot text instruction in a method is described in How to use Text instructions.

Step

Action

1

In the Evaluation module,

  • choose View:Documentation

or

  • click the View Documentation icon.

Result: the Documentation dialog box is displayed.

2

  • Select the Result Information tab.

  • Select the Snapshots sub-tab.

Result: The recorded Snapshot information for a chromatogram is displayed in a list.

3

You can

  • select other chromatograms in the Select chromatogram drop-down box.

  • select the Rows or Columns radio button to display each Snapshot as a row or a column.

  • select the Time or Volume radio button depending on which quantity you want as a base.

4

To print the Snapshot information

  • click the Print button

  • select the Snapshot check box in the Print dialog box.

  • click OK.

5

Click OK (or the Cancel button) to exit the Documentation dialog box.

How to take Snapshots in the Evaluation module

The table below describes how to take Snapshots in the Evaluation module:

Step

Action

1

  • Open a result file in the Evaluation module.

  • Right-click and select Marker in the menu.

Result: A vertical line indicating a certain point is displayed.

2

Click the marker line and drag it to the desired point where you want to take a Snapshot.

3

Right-click and select Snapshot in the menu.

Result: The Snapshot is displayed in the Snap Shot dialog box.

4

  • Click the Save to File button if you want to save the information as an Excel file (.xls) or a tabbed text file (.txt).

  • You can also copy the information to the clipboard:

    Click and drag the mouse in the table to select the information you want to copy.

    Press CTRL+C.

    The information can now be pasted in a text editor.

  • Click the Print button if you want to print the information.

  • Click the Close button.

5

Repeat steps 2 to 4 if you want to view more Snapshots.

How to view Snapshots during a method run

The table below describes how to view Snapshots in the System Control module during a method run:

Step

Action

1

A method is running and the System Control is displayed:

  • Right-click in the Curves pane and select Marker in the menu.

Result: A vertical line is displayed.

2

Click the marker line and drag it to the desired point where you want to take a Snapshot.

3

Right-click in the Curves pane and select Snapshot in the menu.

Result: The Snapshot is displayed in the Snap Shot dialog box.

4

  • Click the Save to File button if you want to save the information as an Excel file (.xls) or a tabbed text file (.txt).

  • You can also copy the information to the clipboard:

    Click and drag the mouse in the table to select the information you want to copy.

    Press CTRL+C.

    The information can now be pasted in a text editor.

  • Click the Print button if you want to print the information.

  • Click the Close button.

5

Repeat steps 2 to 4 if you want to view more Snapshots.

2005-06-15