evaluates concrete structures using an active eddy-current pulse induction system. The instrument applies periodic current pulses to internal coils within its specialized probe. These pulses generate a transient magnetic field. When the probe passes over an electrically conductive material—such as steel rebar—eddy currents form on the rebar's surface, creating a secondary magnetic field in the opposite direction. The Profometer 4 monitors the resulting voltage changes to compute the exact position and depth of the steel. Operational Parameters
: Describe how the rebar midpoints were marked on the concrete surface during testing.
The Proceq Profometer 4 is a classic piece of non-destructive testing (NDT) equipment widely recognized in the construction and civil engineering industries. While newer models (like the Profometer 600 series) have since taken the spotlight, the Profometer 4 remains a workhorse in many inspection fleets due to its durability and straightforward reliability.
to see which fits your budget and technical requirements best. Rebar Locator and Cover Meter Operation - PM8000 Range proceq profometer 4 manual
This function is more complex and requires measuring the cover depth first.
During a measurement, the Profometer screen displays a wealth of information:
The Profometer 4 (and its successor, the 5+) operates on the . It induces a magnetic field in the concrete; when a metallic object like a reinforcing bar is encountered, it creates an "echo" that the device measures to determine depth and position. When the probe passes over an electrically conductive
The analog or digital display unit that processes signals and shows cover depth.
Locating reinforcing bars requires systematic scanning patterns. Step 1: Locate the Rebar Direction Place the probe flat against the concrete surface. Move the probe slowly in a straight horizontal line.
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Move the probe slowly in a straight line, perpendicular to the expected direction of the rebars. Monitor the analog needle and the internal audio signal.
Turn on the device and check the battery status indicator. Low battery voltage causes signal drift and inaccurate readings.
Use the spot probe; angle the scan diagonal to the upper mesh layer. Internal self-test failure or probe disconnection.
: Requires a "zeroing" process away from metal to ensure accuracy before each use. Typical Applications Quality Control : Verifying cover on new construction projects. Safe Drilling
Up to 120 mm (4.75 inches) depending on rebar size.
