Panametrics C-RL, Instruction Manual

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Model C-RL Installation Guide 23
4.5.2 Preparing the Pipe
To prepare the pipe for installing the transducer mounting fixture, complete the following steps:
1. Remove any pipe insulation from the installation site.
Note: Make sure you clear an area that is large enough for the transducers and the dampening material.
2. Remove any loose paint or rust with sandpaper or emery cloth. Make sure to preserve the original curvature of
the pipe. If the finish is mirror-smooth, use the file to roughen the surface.
3. Using an emery cloth, clean the cleared area. Again, take care to preserve the original curvature of the pipe.
4. With an ultrasonic thickness gage, measure the pipe thickness at a minimum of six spots on the cleared area. To
ensure accuracy, take at least three measurements at each spot and average the results. The thickness should
not vary by more than 5% among the six spots. If you encounter more than a 5% variation among the six spots,
move to another section of the pipe. Verify that the wall thickness at both transducer locations has less than the
5% variation.