Dynasonics TFX Ultra Transit Time Flow Meters - Manual (Page 24)

DTTS/DTTC Small Pipe Transducer Installation
The small pipe transducers are designed for specific pipe outside diameters. Do not attempt to mount a DTTS/DTTC
transducer onto a pipe that is either too large or too small for the transducer. Contact the manufacturer to arrange for a
replacement transducer that is the correct size.
DTTS/DTTC installation consists of the following steps:
1. Apply a thin coating of acoustic coupling grease to both halves of the transducer housing where the housing will contact
the pipe. See Figure 14 .
2. On horizontal pipes, mount the transducer in an orientation such that the cable exits at ±45 degrees from the side of the
pipe. Do not mount with the cable exiting on either the top or bottom of the pipe. On vertical pipes the orientation does
not matter. See Figure 10 .
3. Tighten the wing nuts or U-bolts so that the acoustic coupling grease begins to flow out from the edges of the transducer
or from the gap between the transducer halves. Do not over tighten.
4. If signal strength is less than 5, remount the transducer at another location on the piping system.
1/16 in. (1.5 mm)
Acoustic Couplant
Grease
Figure 14: Application of acoustic couplant — DTTS/DTTC transducers
OTE:
N
If a DTTS/DTTC small pipe transducer was purchased separately from the flow meter, the following configuration
procedure is required.
V-MOUNT AND W-MOUNT INSTALLATION
Page 24 March 2014