Cygnus DIVE Operating Manual
M3-DIVE-M-ENG_Iss9.docx
Page 22 of 117
Twin Element Probes
Probe Type Details
Applications
Identification
S3C
3.5 MHz 13 mm
(0.5”)
Suitable for
measurement on thinner
sections where surfaces
are relatively rough
Orange Band
S5C
5.0 MHz 13 mm
(0.5”)
Ideal for thin sections
without heavy corrosion.
Black Band
S5A
5.0 MHz 6 mm
(0.5”)
The higher frequency
and narrower beam
makes this Probe ideal
for measuring small-
bore tubing, thin section
plate and other areas
where access is limited.
Black Band
Lower frequency probes offer better penetration on heavy
corrosion/coatings.
Probe Measurement Ranges
Each probe type has a defined measurement range to be aware of.
Probe Type
Measurement Range (in steel)
T5B
2.0
–
100 mm (SE)
4.0
–
50 mm (EE)
0.08
–
4 inch (SE)
0.16
–
2 inch (EE)
T2C
3.0
–
150 mm (SE)
6.0
–
50 mm (EE)
0.12
–
6 inch (SE)
0.24
–
2 inch (EE)
S2C
3.0
–
250 mm
4
0.12
–
10 inch
S3C
2.0
–
150 mm
0.08
–
6 inch
S5C
1.0
–
50 mm
0.04
–
2 inch
4
To measure thicknesses on tall thin cylinders or columns the height-width ratio should be no
less than 1.0:0.6 (Height:Width) otherwise side reflections prevent measurement.
