Dwyer UXF3 - Manual (Page 96)

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5.6. Selection of acoustic couplant
Acoustic couplant is a media that eliminates a gap between the detector and the pipe .
Acoustic couplant
Pipe
Detector
There are 4 types of acoustic couplant. Select a suitable one referring to the following table.
Type
Silicone compound
(KE-348W)
Silicone-free grease
(HIGH Z)
Silicone grease
(G40M)
High temperature
grease
(KS62M)
Fluid temperature -40 to +150°C 0 to +60°C -30 to +150°C -30 to +250°C
TFE × { { {
Before coating the acoustic couplant, eliminate material such as rust, water drops, dust, oil/ grease or other foreign matters
from the pipe surface using the thinner, sand paper, etc.
Bulletin F-107-UXF3