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

5.4c The Single-Traverse Method - MCF
The Single-Traverse MCF consists of two parts. Each part is made up of two magnetic blocks which are connected by
two rods. In addition, a sliding transducer block, which is used to hold the transducer in proper alignment, is positioned
on the two rods. Each part is positioned on the pipe to face 180
Note: In some cases, a magnetic clamping fixture with two transducer blocks is used.
The procedure for mounting the MCF involves marking the pipe and then securing the fixtures to the pipe.
WARNING! Do not use magnetic fixtures at temperatures that exceed 120°F (49°C), or the fixture will fall off
the pipe.
To install the MCF in a single-traverse configuration:
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.
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 MCF 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. 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
o
opposite each other.
Top of Pipe
Side View
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