YSI PC6000 - Manual (Page 20)

PC6000 Menus Section 4
YSI Incorporated PC6000 Software Operations Manual 16
The Control Info menu allows you to report or plot an entire file, or any portion of a file. Other
options on the Control Info menu allow you to average several data points together and set up
reports and plots to display data in the format you choose.
Below the prompt, Enter title line, assign a title that will appear on all reports and plots.
SAMPLE.DAT is shown in the example screen above.
Select the four options below to view start and stop times of the file, and specify portions of the file
to report or plot.
First sample was at:
Enter start time:
Enter stop time:
Last sample was at:
The first and last line of this block of information indicates the actual start and stop times of the
current file. You can identify any segment of time from within a file to report and plot data. For
example, if the duration of the deployment was five days, but you wish to see a report and plot for
only the third day, simply enter the start and stop dates and times associated with day three. Even
though all five days of data are retained, reports and plots will show only day three.
The following two options show the sampling interval which was in effect throughout the
deployment and a method by which you can consolidate readings to improve report and plot
appearance.
Logging interval was:
Enter averaging interval:
You may choose to average several data points together for reporting and plotting. For example, if
the sondes readings were captured every 900 seconds (15 minutes) during the deployment, you
might want the reports and plots to average four of these readings together so that the information
can be reported or plotted on an hourly basis. To do this, define an averaging interval of 3600
seconds.
Select X-axis time per screen option to specify the time interval on the X-axis. This line is only
applicable when Date + Time have been defined for the X-axis. You can define the width of a given
plot screen in minutes by changing the number of minutes in this option.
Select Cross-parameter style to choose one of four plot styles. This option is only applicable if a
parameter other than Date + Time is selected for the X-axis (see Parameters above).
An averaged plot (AVG) assumes a correlation between the X-axis and the Y-axis parameters. The
averaged plot divides the X-axis into equal-sized memory bins. Each sample is tallied into the
appropriate memory bin based on its X-axis value. When finished, the average value for each
Y-axis parameter in each memory bin is displayed.
A sequential plot (SEQ), plots each point successively as it comes from the data file. A sequential
plot provides more detail on the data than an averaged plot, but can appear rather messy.