Panametrics C-ET, Руководство по установке

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Model C-ET Installation Guide 27
1.3.4.3 Surveying the Pipe (cont.)
3. Line up the zero scale point at the desired transducer location (e.g. 3 or 9 o’clock) of the first transducer. Mark a
line (origin line) at least 12 in. (30 cm) long.
4. To find the coinciding point on the opposite side of the pipe (180° away), divide the measured circumference by 2
and measure this distance along the circumferential line from the zero point. Take the 180° point measurement
from both over the top of the pipe and under the bottom of the pipe (on a horizontal pipe) to ensure reciprocity
of the installation. Mark a small scribe line at the 180
o
point.
Origin Line, min. 12 in. (30 cm) long Zero Point
Side View
and C/2
180
and C/2
o
180
o