Yokogawa GC8000 Process Gas Chromatograph - Manual (Page 150)

<5. Display and Operations while Connected to GC1000 Mark II>
5-40
IM 11B06C01-01E
n Concentration Analysis History Window
The Concentration Analysis History window is provided to observe temporal changes in
concentration analysis data analyzed in the Process mode by the analyzer up to the current
instant. It can recall data for 250 instances in a maximum of one year that has been stored in the
analyzer server.
It displays all the 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 by using the scroll bar.
l Window configuration
The following shows the configuration of the Concentration Analysis History window.
F5-4-4.ai
l Display contents
The following lists the display contents for each item.
Item Display Contents
Analysis Start Time Displays the date and time at which analysis of the display data was started
# 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.
Concentration Indicates concentration for each peak (with the unit indicated after the peak
name).
*Note: If commas (,) are used in stream names or peak names, the features of the analysis results windows may not function properly.
5th Edition : Nov. 16, 2011-00