Selecting The Right Probe; Measuring Metals - Cygnus M5-C2P Operating Manual

M5-CYG2P-M-01_Iss6.doc

4. Selecting the Right Probe

The performance of any thickness gauge, and its ability to get a
reliable measurement depends on selecting the right ultrasonic
probe for the application and conditions. Cygnus gauges are
therefore offered with a selection of probes suitable for most
thickness gauging applications.
The following section helps you select the right probe for the
application.
The gauge must be set for the probe connected to it, see
Selecting the Probe Type on page 40.

Measuring Metals

Material Coating Corrosion Thickness
Steels Any
Steels Any
Steels Any
Steels Any
Steels Non
Steels Non
Cast Non
Iron
The table above shows that to be able to measure coated and un-
coated steels with non to heavy corrosion ideally you will require
at least two probes, in almost all applications this will be a S2C
probe and a T5B probe.
When measuring in Multiple Echo mode the coating will be
ignored and just the metal thickness measured.
Non to 1 mm+
Moderate
Non to 2 mm+
Moderate
Non to 3 mm+
Moderate
Non to 3 mm+
(0.12"+)
Moderate
Non to 0.8 mm+
Heavy (0.03"+)
Non to 1.5 mm+
(0.06"+)
Heavy
Non to 2.5 mm+
Moderate (0.1"+)
Cygnus 2+ Operating Manual
Recommended..
Probe Measurement Mode
S5A Multiple Echo
S3C Multiple Echo
S2C Multiple Echo
S2D Multiple Echo
T7A Single Echo
T5B Single Echo
T2C Single Echo
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