A.Purpose
To detect pinholes, crack and damage coatings on conductive substrates, therefore to provide an effective safeguard against corrosion.
B.Application
- Coated piping
- Coated tanks and vessels
- Concrete coating
- Steel structures coating
C.Principle
Using a low frequency high voltage to delivers a stabilized pre-set pure DC outputs via a probe to an inspection electrode. As the electrode moves over the coated surface, a small current flows actuating a visible sparkle at the point of contact, if it encounters a pinhole or flaws,
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