Rev. 01/11 - 2.8 - TFXL-X
After selecting an optimal mounting location (Step 1) and
successfully determining the proper transducer spacing (Step 2), the
transducers can now be mounted onto the pipe.
Before the transducers are mounted onto the pipe surface, two
areas slightly larger than the flat surface of the transducer heads
must be cleaned of all rust, scale and moisture. On rough pipe
surfaces, such as ductile iron pipe, it is recommended that the pipe
surface be ground flat. Paint and other coatings, if not flaked or
bubbled, need not be removed. Plastic pipes typically do not require
surface preparation other than soap and water cleaning.
The DTTN and DTTH transducers need to be properly oriented on
the pipe to provide optimum reliability and performance. On
horizontal pipes, the transducers should be mounted 180 radial
degrees from one another and at least 45 degrees from the top-
dead-center and bottom-dead-center of the pipe. See Figure 2.1.
Figure 2.1 does not apply to vertically oriented pipes.
DTTS and DTTC transducers should be mounted with the cable
exiting within ±45 degrees of the side of a horizontal pipe. On
vertical pipes the orientation does not apply.
PART 2 - TRANSDUCER INSTALLATION
3. Transducer Mounting
Figure 2.1
Transducer Orientation — Horizontal Pipes
Pipe Preparation
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