Yokogawa GC8000 Process Gas Chromatograph - Manual (Page 162)

<5. Display and Operations while Connected to GC1000 Mark II>
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IM 11B06C01-01E
(2) Select the peak name to be indicated on the graph from the list box at the lower right of the
dialog box as follows:
Continuous peak names: Drag from the first peak name to the last peak name.
Discontinuous peak names: a) Click on the first peak name or the start of a peak range.
b) With the CTRL key held down, click on the next peak name
or the end of the range.
c) Repeat step b) to select the necessary peak names.
The selected peak names will be inverse video displayed.
• Up to six peak names can be selected at a time.
• If a wrong peak range has been selected, make a new selection.
(3) Set up a scale for the ordinate (a concentration scale for concentration analysis history , a
retention time scale for retention time history or calibration coefficient sale for calibration
coefficient history).
a) Select linear or logarithmic representation.
b) Select Auto/Manual mode for scale setup. With Auto selected, the scale suitable for a
selected range is automatically set. When Manual is selected, you need to further enter
the maximum and minimum values of the axis.
• In logarithmic representation, the zero or negative values cannot be represented properly.
If the values include the zero or a negative value, be sure to select linear representation.
(4) Set up the time axis range.
Choose Auto or Manual. With Auto selected, the entire time range displayed in the history
window is turned into a graph. When Manual is selected, you should choose the start time
and end time from the list boxes of the drop-down format. In this case, only data in the
selected range is plotted into a graph.
• A start time must be selected prior to the end time.
(5) As the form for peak name representation, choose either “Stream# - Peak# - Peak Name
(unit)”, or “Peak Name (unit).”
(6) Check that all settings have been specified, and then click the OK button.
A graph window is then displayed.
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5th Edition : Nov. 16, 2011-00