Metrohm NIRS XDS Process Analyzer – DirectLight/NonContact - Manual (Page 49)

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Thread the knurled collar onto the threaded portion of
the mating assembly. Tighten hand-tight.
Be sure the knurled collar is tightened enough to
compress the O-ring, to seal out contaminants.
8.2 Purged Unit Instrument RJ-45 Connection
The Purged Enclosure uses different AC Power and
communication entrances.
The instrument air is routed to the entrance on the
filter, as shown.
AC (“mains”) power is provided to the lower
entrance on the box where shown in this photo.
This shows the temporary AC power cord. A
permanent installation must use dedicated wiring,
in accordance with local codes.
The RJ-45 fiber optic communication lines enter
the enclosure. From here, the cables go to the
fiber optic modem located inside the instrument.
The purge enclosure uses a 100BaseTX-FX Media
Converter for safety and clean communications in
a factory environment.
A 30-meter fiber optic pair is supplied. Longer
lengths are available by special order. Maximum
cable distance is 2 kilometers. This is a full-duplex
system.
The fibers must be fed into the enclosure using a
proper fitting, as shown at right.