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INFICON Explorer Portable Gas Chromatograph User Manual

Page 147

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Explorer Operator Manual

145

3. Select the amount of smoothing to be applied.

The signal will be smoothed and the modified chromatogram is displayed.

None

provides no smoothing and

15

provides the maximum smoothing. If you

select

15

, SiteChart averages 7 points before and 7 points after every point on

the baseline.

4. From the View menu, select

Re-integrate

.

If signal noise was affecting integration, signal smoothing will lead to more
accurate integration.

5. Annotate the notes for this chromatogram, to show that the original file has

been modified, and then save it.
You can always return to the original chromatogram by setting smoothing to

None

.

Status Block

This command enables/disables the status block. The

status block

displays the

signal level and the slope of the signal at a time defined by the position of the cross-
hair. The cross hair does not need to be directly on the signal.

Font Size

Selects the font size for the labels on the graph.

Automatic

is always readable. It

adjusts the font size with the current view.

Small

,

Medium

, and

Large

allow you to

customize the displayed font as required.

Re-integrate

The

Re-integrate

command recalculates the area of the peak using the new

integration parameters or new library information.

When you re-integrate, the integration method from the current assay is used. If an
assay has been loaded from another instrument, the serial number will not
correspond to the analysis. SiteChart will display a warning message. You can
override this message, but use caution. The reported results may be invalid.