Download User Manual - Pascal Technologies, Inc

Aperture
This inlet allows a high pressure sample to be delivered right to the analyzer. Its
effective pressure is reduced by using a very small diameter aperture. The sample
is switched on using the manual or electropneumatic valves.
Sweep tee
This inlet is similar to the aperture inlet except that an upstream tee fitting is
installed to provide fresh sample to the analyzer aperture at all times. The sample
is flushed past the aperture valve as a result of a pressure drop in the sample line.
A vacuum pump creates the pressure drop for sub-atmospheric sampling.
High conductance valve
This valve allows the analyzer to be attached to a high vacuum process. The large
bore of the valve permits good molecular flow to the analyzer. Installing one of
the inlets will allow sampling from higher pressure samples after the high conductance valve is closed.
4-6 | Dycor LC-D Series