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Advanced Operations
The corresponding absorbance and the elapsed time is highlighted
where the cursor is positioned on the curve.
6.6 System Check
1. From the Main Menu, press
SYSTEM CHECKS
.
The System Check menu contains instrument information and
various performance tests.
Table 12 Navigating the Time Scan
Cursor/Zoom Function Description
Curve Icon
Choice of Cursor Mode.
Cursor Mode Single : The cursor moves to each selected measurement point of the scan.
Delta mode: A second cursor is activated. The position of the fixed cursor was previously defined
in Cursor Mode Single. Use the active cursor to select any point on the measurement curve. The
difference in time between the two cursors. The delta values are correspondingly highlighted and
displayed on the x and y axes.
The slope of the curve and the square of the correlation coefficient (r
2
) between the cursor points
in the Delta mode are shown under the curve.
Arrow Keys
The right and left arrow keys are used to move the cursor (depending on the selected mode) to the
next data point. The data of the point (wavelength/absorbance or % transmittance value) are
highlighted on the x and y axes.
Press any point on the curve to display the associated data.
Zoom Icon
This function is used to magnify a section of the curve. The original curve size can be restored by
pressing the
ZOOM
icon again.