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| NG C820 0 AN D PGC1000 US ER MAN UA L | 2101 510MNA H
This allows screen visibility, access to the feed-through assembly and the termination panel
located in the rear of the housing.
For the shelf-mounted devices, the device would be oriented with the feed-through assembly
also facing forward. Sufficient clearance is required when mounted near an inside corner.
3.
Secure in place by tightening the hex socket set screw, located in the neck of the device, using
a 1/8 inch hex wrench.
Figure 4-5: Analyzer mounting
Figure 4-6: Optional mounting flange pipe
4.
If the installation has the optional mounting flange pipe, insert the hex socket screw through
the hole in the welded flange into the neck bottom of the device and tighten using a ¼ inch hex
wrench. Repeat for all screws.
5.
If the installation has the optional mounting flange pipe, small adjustments may be made to
orientation. Apply additional pressure to the mounting pipe with a pipe wrench and then tighten
the mounting pipe into the shelf-mounted flange or pipe saddle flange. Otherwise, loosen the
hex socket set screw, rotate the device, and retighten.
4.4
Sample system installation
4.4.1
Sample system design considerations
Information in this section enables the user to design the sample transport tubing connected between
the sample probe and the installed analyzer. Minimizing transport lag time and maintaining a single
vapor phase sample are important factors to consider when selecting transport tubing.
Lag time is the time required to purge out one volume of transport tubing and the volume of the
sample conditioning system.
4.4.2
Tube quality
Use only good quality, clean, stainless steel chromatographic grade transport tubing for carrier,
calibration gas and sample lines. Use of poor-quality stainless-steel tubing gives unsatisfactory
results.
