Hach-Lange DR 6000 User Manual - Manual (Page 115)

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Expanded programs
6.7 System Checks
1. Press System Checks in the Main Menu.
The "System Check" menu contains instrument information
and various performance tests.
Table 17 Navigating the time scan
Cursor function/
Zoom function
Description
Curve Icon
(Choice of Cursor Mode)
Delta mode: A second cursor is highlighted. The position of the fixed cursor was previously
defined in Cursor mode Single. Use the active cursor to select any point on the reading curve.
The difference to the fixed cursor is shown on the curve. The delta values are correspondingly
highlighted and displayed on the x and y axes.
The gradient of the curve and the correlation coefficient (r
2 ) between the cursor points in the
Delta mode are shown under the curve.
Cursor mode, single: The cursor moves to each selected measuring point of the scan.
Arrow keys
The arrow keys (right/left) are used to move the cursor (depending on the selected mode) to the
next data point. The data of the data point (wavelength, absorbance or transmittance value) are
highlighted on the x and y axes.
Note: Press any point on the curve to display the associated data.
Zoom Icon
This function is used to magnify the section of the curve in the vicinity of the cursor. The original
curve size can be restored by pressing the zoom icon again.