Yokogawa GC1000 Mark II Process Gas Chromatograph - Manual (Page 57)

<4. Chromatogram Window>
4-4
IM 11B03G03-03E
4.3 Viewing Chromatograms and Temperature
Data
The Chromatogram window can display up to eight chromatograms and two graphs of
temperature data.
n Viewing Chromatograms
The following table summarizes the types of chromatograms you can view in the Chromatogram
window.
Type Description
Last chromatogram The chromatogram for the measurement currently in progress. This
chromatogram is updated at a specific interval. “Current chromatogram 1” and
“current chromatogram 2” refer to the current chromatograms acquired through
detector 1 and detector 2, respectively. A sampling rate is 80 ms.
Previous
chromatogram
The chromatogram acquired in the measurement carried out immediately
before. This chromatogram is updated at a specific interval. “Previous
chromatogram 1” and “previous chromatogram 2” refer to the previous
chromatograms acquired through detector 1 and detector 2, respectively. A
sampling rate is 80 ms.
Filed chromatogram A chromatogram uploaded from the analyzer to a PC. A sampling rate is the
same as the one of the analyzer.
Detail chromatogram A chromatogram saved in a file. The window can display up to eight filed
chromatograms.
Differential
chromatogram
A chromatogram showing the differences between two on-screen
chromatograms. The window can display up to two chromatograms.
To view two differential chromatograms, select two different chromatograms, such as “differential
chromatogram 1” and “differential chromatogram 2.” You cannot select the same chromatogram
twice.
l Viewing the Last or Previous Chromatogram
(1) Click on either the [Pen Select] command in the [Graph] menu or the button on the
toolbar. The Pen Select dialog box pops up.
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(2) From the list boxes appropriate for the colors being used, select “Last Chrom 1,” “Last
Chrom 2,” “Prev Chrom 1” or “Prev Chrom 2.” Then click on the [OK] button. The
selected chromatogram(s) appear. The legend now indicates the name(s) of the selected
chromatogram(s).
4th Edition : Mar. 21, 2012-00