Technical Manual Page 14 CODEL
OPS.080 Issue : C Rev. : Date : 16/7/08 Doc. i/d : 0080/6 Ref. : 080040
4.3.1. Metal Ducts/Stacks
Before proceeding, note that the total weight of the measurement probe and transceiver assembly is
approximately 95kg. The duct or stack should be appropriately strengthened if necessary (see Figure 10).
Figure 10 : Standard Site Mounting Flange
Tack-weld the inner end of the stub-pipe to the duct/stack. Ensure that it is aligned at least 5
0
downward from
the horizontal.
If the analyser is not being fitted immediately it is advisable to close the stub-pipe with a blanking plate (not
supplied) cut and drilled to suit the fitted flange.
The mounting flange should be mounted 'four-square' on the stub-pipe as shown in the drawing above.
4.3.2. Concrete and Brick Stacks
A suggested stub-pipe mounting arrangement is shown below. The many variations in stack dimensions, wall
thickness and material that may be encountered do not permit the recommendation of exact details. However,
the general guidelines already given in Sections 4.3. Fitting of Stub-Pipes and Mounting Flanges and 4.3.1.
Metal Ducts/Stacks may be followed. Such installations require particular care to be taken in establishing
alignment of the two stub-pipes as once fixed they may be impossible to adjust. If in doubt, consult CODEL
before commencing installation.
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