GE CModel C-RS Installation Manual page 29

6.1 The Double-Traverse Method - GCF (cont.)
5. Make two marks on the line at the top of the pipe. The distance between these two marks must equal the calculated
transducer spacing S.
6. From each of the marks, measure around the circumference of the pipe in the same direction a distance equal to 1/4
of the pipe circumference. Make a crossmark at each point.
C-RS Ultrasonic Flow Transducer Installation Guide
Line
Spacing
Mark
Mark
Spacing
Crossmarks
Top of Pipe
Side View
Side View
Side View
21