Teledyne GC-Pro/TCD - Gas Chromatograph - Manual (Page 96)

Operation GC-Pro TCD
Teledyne Analytical Instruments 82
in the group with respect to time or cycle. With these buttons, the user
can evaluate the instantaneous analysis as opposed to waiting for a
complete cycle to terminate.
The T_Trend screen shows the analysis trend with respect to time.
This screen displays the concentration behavior or trend for the
group on y axis against the time into the cycle on the x axis.
Low and High values can be set for the y axis using the “L” and “H”
boxes below the graph. Touching the “Update” button will reformat the
y axis index with the new input.
It is possible to view the instantaneous value by touching the trend
graph at the location of interest and the corresponding value will be
displayed in “Watch Line” box at the top right corner.
Note: The LOW and HIGH values must be updated by the user
as soon as system is powered on.
Note: The trend graph will not be plotted continuously; it needs to
be refreshed manually. To refresh the trend screen, press
the HOME button to return to the HOME screen and then
re-enter the trend screen by pressing trend button.
4.5.13.2 T_C YCLE
Similar to the above function, the T_Cycle button displays a graph of
group concentration versus cycles.
The T_Cycle is display is shown below.