The Single-Traverse Method - Ucf - GE C-PT Installation Manual

5.2d The Single-Traverse Method - UCF
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.
The procedure for mounting the UCF for the single-traverse method requires a long block and two short blocks. The
long block is fastened to the pipe first and then the short block assembly is properly aligned and fastened at 180° from
the long block.
You will need a marker or scribe to locate and mark the transducer locations on the pipe. Do the following:
1. Obtain the transducer spacing dimension S, as described in the programming section of the Startup Guide.
2. Be sure the location you have chosen for the installation has at least 10 pipe diameters of straight, undisturbed flow
upstream and 5 pipe diameters downstream of the measurement point.
3. Prepare the pipe where you intend to place the UCF by making sure it is clean and free of loose material. Sanding,
though usually not required, may be necessary to take off any high spots. However, be careful to preserve the
original curvature of the pipe and not to eradicate the marks on the pipe.
4. Find the top of the pipe and use a level to draw a line parallel to the pipe's axis.
C-PT Ultrasonic Flow Transducer Installation Guide
Line
Top of Pipe
Side View
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