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A pair of purge bellows (16) (P/N GS10707) are supplied to help
maintain the purged environment inside the accessory. They attach to
the accessory’s two aperture ports (
13) and seal the gaps between the
accessory and the spectrometer bulkhead (see (see Figure 7-1 and
Figure 7-3.)
Figure 7-3: Quest ATR Accessory fitted with Purge Bellows
The purge bellows (16) are installed by a push fit to the aperture ports
(13) of the Quest. If the gap/distance between the optical unit and
bulkhead is small, the purge bellows can be cut to size for a better fit. It
is best to cut along one of the ridged grooves. For optimal results ensure
a flush fit with the inlet/outlet bulkhead faces of the spectrometer sample
compartment
Tip:
It is recommended that purge bellows (16) are fitted during use to
help stabilize the spectrometer/instrument background even if
purging is not to be carried out.
