INFICON Explorer Portable Gas Chromatograph - Manual (Page 66)

Explorer Operator Manual
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Display Options
Switch between display options by pressing Enter Menu and then DISPLAY
and GC.
PEAK will list all the peaks in the current or last analysis. If a peak matches a
library compound it will be identified. If the retention time does not correspond
to a library compound it will be listed as Unknown.
CMPD (Compound) lists all the compounds in the current library. If the
compound is present in the current or last analysis, a concentration and status
will be listed beside the compound.
GRAPH shows the chromatogram as it develops. As peaks appear and are
integrated they are numbered. You can normalize the chromatogram or view
the full scale.
DET is used when an ECD is installed, and switches to display the output from
the second detector. If you have selected both PID and ECD operation then you
can use this option to switch between views.
To normalize the graph press Enter Menu, DISPLAY, GC, GRAPH and
NORM.
This will adjust the scale so that full scale is the top of the largest peak.
Selecting SCALE will return to the display to the full range of 0-2500 mV at
high sensitivity or 0-252 mV at low sensitivity.
Compound Status Codes
Code Description
OK Detected concentration is within acceptable concentration limits.
A1 Exceeded alarm concentration
C Displayed when you have used the run for calibration. Indicates
that the compound was used for calibration.