7 amplitude track mode, S. refer to, Section – INFICON Composer Gas Concentration Controller User Manual
Page 175
8 - 21
IP
N 07
4-
28
9L
Composer Operating Manual
8.3.7 Amplitude Track Mode
Amplitude Track is the instrument’s default operating mode, as shown
. In this mode the instrument will find and then lock on to the
resonant frequency of the sample gas and track its movements. While tracking,
the concentration of the precursor gas is plotted as mole-percent. For the sake
of absolute accuracy, it is recommended that the zero frequency be first
established. When the sensor has attained stable operating temperature and
the pure carrier gas flow and line pressure have stabilized (Steady LED on the
instrument will be on), then the instrument is ready for setting zero frequency.
It is to be found under menu item Calibration >> Set User Zero.
The user can set the number of data points to be displayed (
). Optionally, data can be logged into a data file (
). The user can choose to display/log only concentration data or a
host of other ancillary data as well.
Figure 8-7 Amplitude Track Plot