Gardner LCS IV User Manual

In the Wavelength Scan mode, the absorbance of the light in a 
solution over a defined wavelength spectrum is measured. While 
the scan is taking place, the cell compartment cover must be 
closed. Therefore, a scan of the round cell compartment is not 
possible.

The reading results can be displayed as a curve, as percentage 
transmittance (%T) or as Absorbance (Abs). The collected data 
can be printed as a table or a curve.

The data is available for formatting changes. These include 
automatic scaling and zoom functions. Maximum and minimum 
values are determined and shown as a table.

The cursor can be moved to any point on the curve for the 
purpose of reading off the absorbance or transmittance value and 
the wavelength. The data for each data point can also be 
displayed as a table. 

 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.

 The cursor moves to each selected measuring point of the scan.

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.

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.