Yokogawa GC8000 Process Gas Chromatograph - Manual (Page 151)

<5. Display and Operations while Connected to GC1000 Mark II>
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IM 11B06C01-01E
n Retention Time History Window
The Retention Time History window is intended to observe temporal changes in Retention-time
data analyzed in the Process mode by the analyzer up to the current instant. It can recall data for
a maximum of one year or that of 250 instances that has been stored in the analyzer server.
It displays all peaks, each of which has been assigned a number upon the analysis results
window being opened, and columns in which no peak concentration was measured at the time
concerned are left blank.
Portions of data hidden from view in the window can be seen using the scroll bar.
l Window configuration
The following shows the configuration of the Retention Time History window.
F5-4-5.ai
l Display contents
The following lists the display contents for each item.
Item Display Contents
# Indicates the absolute numbers of peaks (serial numbers for all peaks of all
tasks): 1 to 255.
Stream# - Peak# - Peak
Name
Indicates peaks of a stream for which the latest analysis has been made, in an
ascending order of stream numbers and of peak numbers (order of assignment).
A stream number, peak number, and peak name are connected and indicated in
this order using “-”, and the concentration unit (%, ppm, or no unit) of that peak is
indicated in parentheses at the end.
Date/Time Indicates the date (year/month/day) and time (hour: minute) at which analysis
was started, for each analysis cycle (250 times maximum). If time data exceeds
250, the oldest data is discarded, allowing the entry of new data.
Retention Time Indicates Retention time (second) for each peak.
n Laboratory Analysis Results Window
The Laboratory Analysis Results window displays the latest laboratory analysis results obtained
in the Lab (laboratory) mode by the analyzer in the order in which the peaks have been detected.
The laboratory analysis results are updated each time analysis by the analyzer is finished. If you
wish to retain current data, save the window display so that you can freely refer to it later.
SEE ALSO
• Display contents below for display data
5th Edition : Nov. 16, 2011-00