The Proceq Profometer 4 Go to product viewer dialog for this item.
is a legacy electromagnetic rebar locator and cover meter used for non-destructive testing of reinforced concrete structures. While it has been superseded by newer digital generations like the PM8000 and PM8500, it remains a common tool on the secondary market for basic rebar detection and cover measurement. Overview of Core Functions As an electromagnetic cover meter, the Profometer 4
uses the eddy current pulse induction principle to detect metallic objects beneath concrete surfaces.
Rebar Location: Identifies the presence and orientation of reinforcing steel before drilling or cutting.
Cover Measurement: Estimates the thickness of the concrete layer protecting the steel.
Pulse Induction: Emits electromagnetic fields that are not influenced by the concrete's moisture or composition, ensuring accuracy in various environments. Basic Operating Instructions Based on standard Profometer operating protocols:
Zeroing/Calibration: Before starting, the device must be "zeroed" or balanced by holding it away from any metallic objects and pressing the reset or zero button. proceq profometer 4 manual
Input Bar Diameter: For accurate cover readings, the user typically inputs the expected diameter of the rebar being measured.
Scanning: The probe is passed over the concrete surface. The signal strength peaks when the probe is directly centered over a rebar.
Orientation: The strongest signal is achieved when the center line of the probe is parallel to the bar. Maintenance and Care
To maintain accuracy and longevity, the following care steps are recommended for Proceq instruments: Operating Instructions - Screening Eagle Technologies
The Proceq Profometer series has been a cornerstone of non-destructive concrete testing for over 40 years. While the newer PM8000 and PM600 series now feature advanced touchscreens and wireless connectivity, the classic Profometer units—including the Profometer 4 and 5—remain widely used for their rugged reliability in locating rebar and measuring concrete cover. Core Functionality & Operation
The Profometer 4 (and its successor, the 5+) operates on the eddy current pulse induction principle. 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. The Proceq Profometer 4 Go to product viewer
Rebar Location: As you move the probe over the concrete surface, the device uses signal strength to identify the bar's axis.
Cover Measurement: Once centered over a bar, the device calculates the distance between the probe and the metal surface. Precision is typically within ±1plus or minus 1 mm depth.
Diameter Estimation: By isolating a single bar, the device can estimate its diameter based on the intensity of the magnetic response. Step-by-Step Setup Guide Download - Protect The Built World
The Proceq Profometer 4 is a vintage rebar locator (cover meter) used to detect the position and depth of reinforcing steel in concrete. While it has been succeeded by modern touchscreen models like the Profometer 6, it remains a reliable tool for many engineers due to its simplicity and rugged design. Key Operations Overview
Based on historical operating procedures for this series, here are the essential steps for using the Profometer 4:
Calibration (Zeroing): Before starting any scan, hold the probe in the air away from any metal. Turn the instrument on and adjust the zero knob until the needle or display reads zero. This ensures that the concrete’s background magnetic properties don't interfere with your reading. Do: Use a soft, dry cloth
Locating Rebar: Move the probe slowly over the concrete surface. The signal strength increases as you approach a bar. The precise location of the rebar is directly under the center of the probe when the signal reaches its peak.
Determining Depth (Cover): Once the peak signal is found, the scale on the analog meter or digital display indicates the "cover"—the distance from the concrete surface to the top of the rebar. Ensure you have selected the correct bar diameter setting, as depth readings are calibrated based on the size of the steel. Maintenance Tips
Battery Care: These older units often use rechargeable batteries that can degrade over time. If the needle fails to reach the zero mark or fluctuates wildly, the battery likely needs replacement.
Avoid Interference: Remove all metal jewelry, watches, and rings before operating the device, as they can cause significant measurement errors. Upgrading to Modern Standards
If you find the Profometer 4 limited for your current projects, modern equivalents like the Profometer 600 offer: High-resolution color touchscreens. Internal memory for 2D cross-line scans.
Compatibility with corrosion electrodes (Half-Cell Potential) for comprehensive structural health monitoring.
For detailed technical assistance or to find current versions of manuals, you can visit the Screening Eagle Download Center. Download - Protect The Built World
The device can store up to 100,000 measurement points.