Jenway 6715 - Manual (Page 83)

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Accepts and re-scales the selected area
to the current zoom setting. Selecting
the
Back key or the Exit Door once
maintains the zoom display and gives
access to the tools for manipulation
and analysis of the zoomed portion. A
further press of the
Back key returns the
original scan.
Area Under Curve
toolbar icons
Area Under Curve Cursor Select Calculator
Selecting the Area Under Curve icon displays the area select cursors. This can be carried out on
zoomed or recalled spectra as well as the current result. Initially both cursors are active.
Use the QWheel™ to position the right hand cursor at the right hand side of the curve to be analysed.
Press the Cursor Select icon to fix this position, enabling the QWheel™ to move the left hand cursor
to the other side of the required curve.
A further press of the Cursor Select icon fixes this position but frees the right hand cursor for further
fine adjustment. (A further press enables both cursors again and so on round the cycle).
When the required area has been defined selecting the Calculator icon displays the area under the
curve, both as the displayed tangent ( Tang.) to the valleys, and as a continuum to the X-axis (Base).
The wavelengths at the start and end of the curve are also displayed.