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Section 3
3.3.5 SONIC COUPLING COMPOUND RECOMMENDATIONS
Clamp-on transducers must be in close contact with a smooth surface free of paint, etc. You must use
a sonic couplant to properly couple the transducer to the pipe. The sonic couplant material fills voids
between the transducer and pipe and allows a uniform transfer of sonic energy into the pipe wall. The
following table lists the sonic couplants recommended by Controlotron.
NOTE: CC128 is recommended for 1021 series transducer installation.
ITEM
CC#
1
101 Temporary and portable use on Clamp-on flow
transducers. Temp. range: -40°F to 100°F.
2
102 Temporary and portable use for all Clamp-on
flow transducers. Well suited for survey use.
Temp. range: -30°F to 100°F.
3
109 Temporary and portable use for all Clamp-on
flow transducers. Temp. range: -40°F to 300°F.
4
112 Permanent ambient temperature couplant for
plastic flow transducers. Temp. range: -40°F
to 250°F.
5
113 Protective spray for providing corrosion resis-
tance to exposed transducer and track parts.
6
114 Temporary and long term couplant for all flow
transducer types. Temp. range: -40°F to 255°F.
7
122 Long term and permanent couplant for Clamp-
on transducers. Temp. range: -40°F to 450°F.
8
124 Long term and permanent couplant for Clamp-
on transducers. Temp. range: -40°F to 250°F.
9
128 Temporary and long term couplant for all flow
transducer types. Temp. range: -40°F to 375°F.
10
129 Adhesive backed Dry/Damping couplant for
129A all flow transducer types.
Notice: Siemens holds US Patent Number 4,929,368 on the CC#122 Coupling Compound and all
compounds of this type. Its use is restricted to Siemens products only, unless a special
license has been obtained. Licenses for use with other products are available through the
Siemens Sales Department.
RECOMMENDED SONIC COUPLING COMPOUNDS
USE
Low in halogens and
sulfur content.
Low in halogens and sulfur
content. Water soluble.
Low viscosity Petroleum
product.
Room temperature vulcan-
izing silicone rubber.
Spray on liquid. Excellent
resistance to salt water
atmosphere.
Teflon filled grease.
Water resistant.
Long chain polymer grease.
Resists breakdown and
thinning at high temperatures.
Two part room temperature
cure adhesive.
High viscosity silicone
grease. Water resistant.
Viscoelastic polymer sheet.
Water resistant.
3-7
1020NFM-1D
CHARACTERISTICS
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