INFICON Explorer Portable Gas Chromatograph - Manual (Page 126)

SiteChart Software
124
Parameter Description
ECD Signal The current signal from the electron capture
detector.
ECD Offset The voltage applied to keep the baseline at
10% of fullscale. The applied offset is an
indication of column contamination. If the
offset is greater than 800 mV the column
should be allowed to flush until the offset
stabilizes between 200 and 800 mV.
ECD Temp. The operating temperature of the electron
capture detector. The temperature can be set
independently of the column and PID. See
ECD Temperature on page
198.
Start/Stop Button
Selecting a Column
When you start a single run, SiteChart will begin the run on the column you selected
through the Analyzer menu or the Column Selection Pop-up Menu. Your assay may
require you to perform two or three runs in order to complete an analysis. One run is
performed on each column. If this is the case, then you must enable all the required
columns on
Explorer automatically cycles through the enabled columns each time
you press the local Start/Stop button. 2
SiteChart overrides this process and starts a run on the selected column only. If you
want to cycle through the columns that are required to complete an analysis, you
have two options. If you are manually performing runs, select the required column
and then press the Start/Stop button. If you are using this method, you can perform
loop or syringe injections.