Chapter 4 Transducer installation
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Chapter 4 Transducer installation
4.1. Installing the transducers
Before installing the transducers, clean the pipe surface where the transducers are
to be mounted. Remove any rust, scale or loose paint and make a smooth surface.
Choose a section of sound conducting pipe for installing the transducers. Apply a
wide band of sonic coupling compound down the center of the face of each
transducer as well as on the pipe surface, ensure there are no air bubbles
between the transducers and the pipe wall, and then attach the transducers to the
pipe with the straps provided and tighten them securely.
Note:
1. The two transducers should be mounted at the pipe’s centerline on horizontal
pipes. Make sure that the transducer mounting direction is parallel with the flow.
2. During the installation, there should be no air bubbles or particles between the
transducer and the pipe wall. On horizontal pipes, the transducers should be
mounted in the 3 o’clock and 9 o’clock positions of the pipe section in order to
avoid any air bubbles inside the top portion of the pipe. (Refer to Transducer
Mounting).
3. If the transducers cannot be mounted horizontally symmetrically due to
limitation of the local installation conditions, it may be necessary to mount the
transducers at a location where there is a guaranteed full pipe condition (the
pipe is always full of liquid).
4.1.1. Transducer spacing
After entering the required parameters, the spacing between the ENDS of the two
transducers is considered as the standard transducer spacing (Refer to Top View
on transducer mounting methods). Check the data displayed in Window M25 and
space the transducers accordingly.
4.1.2. Transducer mounting methods
Three transducer mounting methods are available. They are respectively: V
