Profoscope Proceq - Measuring Rebar Diameter

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Enter the settings menu, select the icon and set the re-

quired cover depth limit. Verify that minimum cover alert

symbol is active in the status line at the top of the

display.

Move the Profoscope over the test surface. Whenever the

cover depth is less than the programmed minimum the

LED indicator will light and if it is enabled, an acoustic

alarm will be given.

Note: In this mode the LED will not light to indi-

cate that a rebar has been located.

3.4 Measure Rebar Diameter

3.4.1 Determining Unknown Rebar Diameter

☺ The Chapter “Getting Started” shows that under the

right conditions the Profoscope can accurately deter-

mine the diameter of a rebar.

The Tutorial chapter on the pulse induction principle de-

scribes the limitations of the technology and clearly out-

lines the conditions whereby accurate readings of rebar

diameter CANNOT be made if there is too much inter-

ference from neighboring rebars or other metallic objects

within the sphere of inﬂuence.

We present 3 working methods which are recommended

to obtain the best results.

3.4.2 Create a Rebar Grid

Method 1  To map out a rebar grid on a test surface and

then to select one rebar from the grid that has sufﬁcient

spacing from other rebars.

Step 1 - Create a rebar grid as described in chapter

3.2.5.

Step 2 - Select one rebar that has the largest spacing

from neighboring rebars.

Step 3 - Use a ruler and conﬁrm that the spacing is at

least 150 mm (6”). If not, redo Steps 1 and 2 until a rebar

Real Tests