GE Baker Hughes PanaFlow LC XMT1000, User Manual

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Appendix B. Using the Clamping Fixtures
110 PanaFlow™ LC User’s Manual
Figure 102: Even Traverse GCF Installation without Transducers
B.2.2 Odd number of-traverse method
Note:
The instructions in this section can also be used for a multiple-traverse method. However, you must use
an
ODD
number of traverses. The distance the signal travels from one side of the pipe wall to the
opposite side of the pipe wall is considered one traverse. For installations with more than one traverse,
contact BHGE for assistance.
The procedure for mounting the GCF for the odd number of-traverse method includes marking the pipe for
the required transducer spacing, fastening the fixture to the pipe, and then mounting the transducers into
the fixture.
To install the GCF odd traverse, complete the following steps:
1.
Ensure the location of your clamping fixture has been properly scoped out following the criteria in
Section 2.6: Precautions.
2.
Prepare the pipe where you intend to place the GCF by making sure it is clean and free of loose
material. Sanding, though usually not required, may be necessary to remove any high spots. However,
be careful to preserve the original curvature of the pipe.
3.
Use a level to find the top of the pipe and then draw a line parallel to the centerline of the pipe.
Figure 103: GCF Odd Traverse Installation, Step 3
4.
Using a level and center punch, make two marks on the line drawn in step 3. These marks must be
separated by the transducer spacing distance
S
, as calculated by the flowmeter.
Figure 104: GCF Odd Traverse Installation, Step 4