DMTA-10040-01EN, Rev. E, February 2018
Using the Instrument
271
Figure 5
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208 ALL
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IN
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1 display with support ring within 3.2 mm (0.125 in.) of 75 %
corrosion pit
5.4.4
RFT Erosion and Corrosion — NORTEC 600D Model
This remote-field testing (RFT) application uses an absolute configuration to identify
volumetric or gradual defects such as erosion and corrosion in ferromagnetic tubing
(see Figure 5-209 on page 271).
Figure 5
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209 An example of an RFT absolute signal response
The use of single exciter probes is recommended for the absolute configuration (such
as TRS series Olympus probes) because they provide easier-to-interpret signals as
well as a sharper response to short but significant defects (see Figure 5-210 on
page 272 and Figure 5-211 on page 272). Alternatively, dual exciter probes (such as
Olympus TRX series probes) can also be used. However, their larger and triple signal
response is typically more challenging to analyze when you are trying to detect
erosion and corrosion defects.
Summary of Contents for nortec 600
Page 8: ...DMTA 10040 01EN Rev E February 2018 Table of Contents viii...
Page 16: ...DMTA 10040 01EN Rev E February 2018 Labels and Symbols 6...
Page 30: ...DMTA 10040 01EN Rev E February 2018 Introduction 20...
Page 58: ...DMTA 10040 01EN Rev E February 2018 Chapter 1 48...
Page 71: ...DMTA 10040 01EN Rev E February 2018 Software User Interface 61 Press the Return key to exit...
Page 72: ...DMTA 10040 01EN Rev E February 2018 Chapter 2 62...
Page 342: ...DMTA 10040 01EN Rev E February 2018 Chapter 7 332...
Page 356: ...DMTA 10040 01EN Rev E February 2018 Appendix B 346...
Page 366: ...DMTA 10040 01EN Rev E February 2018 List of Figures 356...
Page 368: ...DMTA 10040 01EN Rev E February 2018 List of Tables 358...
