
INSTALLATION PROCEDURE
All moving parts are already mounted on the rail. One transducer is stationery, one is movable by loosening the thumbscrew
and sliding it along the spacing scale.
The small pipe transducers are adjustable for pipe sizes between 1/2…2 in. (15…50 mm). Do not attempt to mount the
transducers onto a pipe that is either too large or too small for the transducer.
On horizontal pipes, mount the transducers in an orientation such that the cable exits from the side of the pipe. Do not mount
with the cable exiting on either the top or bottom of the pipe. See
. On vertical pipes, the orientation
does not matter.
1. Clean the surface of the pipe. If the pipe has external corrosion or dirt, wire brush, sand or grind the mounting location
until it is smooth and clean. 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.
2. Loosen the position adjustment thumbscrew and slide the transducer along the scale to set the distance between the
them. The scale shows the distance in inches. See
3. Tighten the position adjustment thumbscrew hand-tight to lock the transducer in place.
1.0
2.0
1.5
0.5
Mounting Chain
Transducer Spacing Scale
Mounting Chain
Thumbscrew
Mounting Chain
Mounting Chain
Thumbscrew
Transducer Position
Adjustment Thumbscrew
(ON OPPOSITE SIDE)
Mounting
Cleat
Mounting
Cleat
Figure 3: Transducer top view
4. Apply contact gel to the underside of the transducers.
Place a single bead of couplant, approximately 1/2 inch (12 mm) thick, on the flat face of the transducers. See
.
Generally, a silicone-based grease is used as an acoustic couplant, but any good quality grease-like substance that is rated
to not flow at the operating temperature of the pipe is acceptable. For pipe surface temperature over 130° F (55° C), use
high-temperature paste (P.N. D002-2011-012) or non-silicone paste (P.N. D002-2011-009).
½ in.
(12 mm)
Figure 4: Transducer bottom view
5. Wrap the mounting chains around the pipe and secure the chains to their respective mounting cleats. See
Installation Procedure
Page 3
March 2021
IND-UM-02647-EN-02