Proceq Profometer 4 Manual

: Uses the Eddy Current principle with pulse induction to detect metallic objects. Measurement Capabilities :

Always perform a "null calibration" (air calibration) before each measurement series. Hold the scan unit in the air, away from any metal, and press the calibrate button. This resets the baseline sensor reading.

Place the scan unit on a known area of the structure with no rebar (or hold it 20cm above the floor). Press the icon on the screen. Wait for the "Calibration Successful" message. proceq profometer 4 manual

One of the most valuable sections of the explains how to transfer and analyze data.

The device uses electromagnetic pulse induction to perform two primary functions: Rebar Localization : Uses the Eddy Current principle with pulse

: Move the probe across the concrete surface. The device typically uses audible signals (beeps) and visual indicators to signal when it is directly over a rebar. Measurement

Place the scan unit flat on the concrete. Move it slowly and steadily (max 0.5 m/s). The manual emphasizes: "Do not lift the probe between passes. Use a rolling motion." This resets the baseline sensor reading

| Error / Symptom | Probable Cause | Manual Solution | | :--- | :--- | :--- | | | Probe too close to large metal mass (e.g., steel formwork). | Increase distance. Re-calibrate in air. | | No bars detected | Concrete cover too deep (>120mm for #6 bar). | Switch to a lower frequency sensor (optional deep cover probe). | | Fluctuating readings | Scanning too fast or rough surface. | Slow down to <0.3 m/s. Apply acoustic gel or smooth the surface. | | Probe not recognized | Broken cable or dirty connectors. | Clean the Lemo connector with isopropyl alcohol. Replace cable if necessary. | | Battery won’t charge | Temperature below 0°C or above 40°C. | Move device to room temperature for 1 hour before charging. |