20
The sample gas or test gas is sucked in by pump
P
via
Samplegas In
and
Testgas
In
at the rear side of the housing from the bypassing gas.
The minimum bypass flow is 200 ml/min.
The sample gas or test gas is carried via the
6-Port-Valve
to the gas
chromatographic capillary column
GC
from where it elutes into the ion mobility
spectrometer
IMS
.
The overpressure of the N
2
drift gas and carrier gas at the inlet must
not exceed 6 bar (600 kPa).
In the default position of the
6-Port-Valve
the carrier gas (N
2
) permanently
flushes the gas chromatographic capillary column
GC
. When a measurement is
started the sample gas flows through the loop controlled by
P
. In this position
the sample gas from the
Sample In
socket or from the
Testgas In
socket is
directly routed to the
Sample Out
socket.
When the
6-Port-Valve
switches to the inject position the sample in the loop is
flushed into the column. The carrier gas now transports the sample through the
column where the substances in the sample are separated by time. The eluting
substances are transported into the ionization region of the
IMS
and leave the
system via the
Gas Out
socket.
Summary of Contents for GC-IMS-SILOX
Page 1: ...G A S Gesellschaft f r analytische Sensorsysteme mbH GC IMS SILOX USER MANUAL...
Page 66: ...65 7 Close the dialog with Close The import process is completed...
Page 103: ...102 17 10 2 System Page Plan Tab Figure 22 The System Page Plan...
Page 128: ...127 Exemplary Readout on Modbus...
Page 136: ...135 Figure 31 Results Window...
