Page 27 of 34
SUPER SESI, by FIT
User manual, Revision 2.0
Use the inlet of the sample line to introduce the sample. Before starting the analysis, remove
the Teflon cover to expose the inlet. For headspace analysis, you will need an auxiliary gas to
carry the samples of interest towards the inlet of the sample line.
INTERESTING NOTE
In order to prevent any contamination to be accidentally ingested into the
SUPER SESI and the mass spectrometer, samples have to be pushed through the inlet of
the sample line. When no sample is being introduced, a fraction of the clean gas
(provided by the AUX GAS) cleans the ionization region and passes through the sample
line. This gas is outputted through the inlet of the sample line. In addition to prevent
any unwanted contamination from entering in the SUPER SESI, this flow helps to
desolvate and clean the sample line between measurements. To adjust the clean gas,
refer to section “Adjusting the clean gas flow and the sample gas flow”.
CAUTION
Hot Surface. At operating temperatures, the sample line can be very hot. Be
careful when handling the inlet of the sample line and the protection cover is removed.
Figure 24. Removing the sample inlet protection cover
If you use hazardous samples, make sure that the fitting at the outlet of the Mass Flow Controller
(Figure 3) is connected to a tube and is properly evacuated. Refer to the safety officer of your
laboratory for this.
IMPORTANT NOTE
If a tube is installed at the outlet of the Mass Flow Controller (Figure
3), please make sure that this tube has the biggest diameter possible*, so the pressure
drop of that tube is as low as possible. This minimizes its effect to the overall pressure
drop of the system, so that the introduction of samples can be done easily and
smoothly.
*Use a proper union fitting reduction to connect this tube with the outlet fitting of the
Mass Flow Controller (OD6mm).
