QIRF Operation And Maintenance Manual
QIRF Operation Manual
May. 01, 2012
85050-301-000 Rev C
8
2.3 Gas Sampling
In Diffusion version QIRF, the gas sampling system is composed of a diffusion type gas
sample chamber and two vent holes on the enclosure bottom. The gas flows in and out
through the two vent plugs on the bottom of the QIRF enclosure. See above picture.
In Pump-thru version QIRF, the sampling gas is pumped through the fitting on the bottom
of the QIRF enclosure, and passed through the gas chamber, then exhausted out though
the fitting on the right side of the enclosure.
Pump-thru version QIRF doesn’t have
pump inside
. For gas sampling and conditioning unit, QEL provides SCS-1 (One channel
sampling and conditioning system).
2.4 Mounting and System Wiring
NOTE: The Diffusion version QIRF should be mounted 1 foot (30cm) from the
floor.
