© 2008 by Proceq SA 11
2.3.4 Factors Affecting Diameter Determination
Two factors affect the determination of the rebar diameter.
One is the cover depth. Diameter can be determined for
rebars with cover not exceeding 80% of the small range.
(64 mm, 2.5”)
The second is the separation between neighboring bars.
The separation between the bars must be greater than the
limits shown in the drawing below (with reference to the
MC) for accurate determination of diameter.
2.3.5 Orientation
The strongest signal results when the center line of the
probe is parallel to a bar. The center line in the Profoscope
is the long axis of the instrument. This property is used to
help determine the orientation of the rebars.
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