Setting data cursors

Setting Graphic Options

To enable data cursors and set cursor labels and attributes:

1

1. Select Graphic Options from the Display menu.

 

2.In the Data Cursor section of the Graph Setup tab (see Figure 1-4 on page 1-25),select Show Data Cursors, then select one of the following cursors from the Type drop-down list:

•X— Single vertical cursor

•Y— Single horizontal cursor

•X-Y— Vertical and horizontal cursors

•X-X— Two vertical cursors

•X-Y-X— Two vertical cursors and one horizontal cursor

 

 

 

NOTE: If data cursors are displayed, they are printed when

 

 

 

you print traces. To suppress data cursor printing, deselect

 

 

 

Show Data Cursors before printing.

 

 

 

 

 

 

 

To set the cursor mode, select the appropriate label type as

 

 

 

described below:

 

 

 

 

Label

 

 

Options

Type

 

 

 

 

 

 

 

 

Y Label

•

Absolute— Displays the number of counts.

 

• BP Relative— Displays the % Intensity value relative to the base

 

 

peak in the trace. Includes “BP%” marker on the cursor label.

 

• Display Relative— Displays the % Intensity value relative to the

 

 

largest peak in the current display range.

 

 

 

X-X

•

Absolute— Displays the Spectrum Number or Retention Time

Label

 

(chromatogram) or the Mass (spectrum).

• X-Relative— Available if you have two X cursors displayed. For the

 

 

 

first cursor, displays the Spectrum Number or Retention Time

 

 

(chromatogram) or the Mass (spectrum). For the second cursor,

 

 

displays the appropriate value relative to the first cursor.

 

 

For example, if you place the first X cursor in a spectrum at 100 m/z

 

 

and the second X cursor at 80 m/z, the cursors are labeled

 

 

100 and –20.

 

 

 

 

Data Explorer™ Software User’s Guide

1-27