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Table of Contents
Related Manuals for profometer PM8000
Summary of Contents for profometer PM8000
- Page 1 PM8000 Rebar Diameter and Cover Meter User Manual...
- Page 2 Jul 10, 2023 PEGG Apr 12, 2023 HELG, PEGG - Initial document Aug 15, 2023 HELG – PM8000 Lite launch & firmware update v1.1.6 Dec 15, 2023 HELG – pm app v2.1 update Apr 20, 2024 HELG – pm app v2.2 update Sep 20, 2024 HELG –...
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Page 3: Table Of Contents
4.7.9 Units ..........................22 4.7.10 Memory ........................22 4.7.11 Device Info ........................24 PM8000 Measuring Range ....................25 4.8.1 Measuring range without the cart ................25 4.8.2 Measuring with the cart ....................27 Factors Affecting the Measurement ................... 28 4.9.1 Errors due to Neighboring Rebars ................ - Page 4 5.4.8 Data storage, reading, sharing & reporting ..............50 Application hints ......................51 Measurement process ....................... 51 Signal strength interpretation with pm app software ............52 Technical Specification ....................56 25. September 2024 © Copyright 2023, PROCEQ SA...
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Page 5: Legal Notice
Legal Notice This document contains important information on the safety, use and maintenance of Proceq products. Read through this document carefully before the first use of the instrument. Observe the safety and warning notes in this documentation and on the product. This is a prerequisite for safe working and trouble-free operation. - Page 6 Damages during carriage On receipt of the goods, check for any visible damages on the packaging. If it is undamaged you may sign the receipt of the goods. If you do suspect by visual inspection that damage has occurred, make a note of the visible damage on the delivery receipt and request the courier to countersign it.
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Page 7: Introduction
Screening Eagle Workspace platform. Figure 1: PM8000 SystemScope of this document This document is the user manual for all products of the PM8000 Product family. Therefore, some pictures or functional descriptions may differ from your model. 1.1 Product versions To be able to use the functionalities of the pm app, a software license is required. - Page 8 Please refer to the table below for the supported features of the respective licenses (upgrades are possible, on request): PM8000 Pro PM8000 PM8000 Lite Measurement Modes Spot Spot Spot Spot data import Spot data import Spot data import Line Scan...
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Page 9: Product Applications
Connected Via low power Bluetooth the PM8000 sensor wirelessly connects to the iPad, which runs the pm app. Given mobile data connectivity (Wi-Fi or mobile network), the pm app automatically and safely stores all measurements on the Screening Eagle Workspace. - Page 10 Figure 2: Application overview 25. September 2024 © Copyright 2023, PROCEQ SA...
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Page 11: Scope Of Delivery
2 Scope of Delivery Please refer to the Quick start Guide provided in the standard delivery and available in download section of the product webpage: profometer-pm8000-QSG.pdf (screeningeagle.com) 25. September 2024 © Copyright 2023, PROCEQ SA... -
Page 12: Measurement Principle
3 Measurement Principle PM8000 uses electromagnetic pulse induction technology to detect rebars. Coils in the probe are periodically charged by current pulses and thus generate a magnetic field. On the surface of any electrically conductive material which is in the magnetic field eddy currents are induced. -
Page 13: Device Overview
4.1 Switching-on and getting started Please refer to the Quick Start Guide (included in standard delivery) for first steps with your PM8000. The Quick Start Guide is also available in the download section of the product webpage : profometer-pm8000-QSG.pdf (screeningeagle.com) -
Page 14: Visual Indicators
4.2 Visual indicators The visual indicators show quickly and easily the proximity of a metallic object. The exact location where the sensor measures is indicated by the measurement center mark. The arrows right and left with LED indicate the rebar or metallic object proximity. Measurement Center (MC) Right Left Arrow... -
Page 15: Scan Measurement
When the sensor used connected with the pm App the key functions assignment is different. Figure 9: Key functions in connected operation For more information, please refer to the tutorial videos of pm app (Profometer app downloadable from iOS App store). -
Page 16: Tracking Indicator
The tracking indicator is a moving dot on the integrated display, which visualizes the relative position of a rebar or metallic object. The tracking indicator is installed by default on the PM8000 sensor. However, it is possible to deactivate or re-activate it following the Figure 11. -
Page 17: General Use
4.7 General use In standalone operation, the PM8000 sensor can be operated and configured by the function keys. The left function key allows to enter the sensor menu: In the menu the function keys can be used to navigate through the menu items: 4.7.1 Main Menu Items... -
Page 18: Setting Reference Rebar Diameter
Create a new series or switch mode for stopping a series. Spot data reading is possible only in pm app software (PM8000 & PM8000 Pro licenses). In standalone use, only stats are available after each series (Right function key button). -
Page 19: Set Minimum Cover Alert Limit
Figure 15: Menu – Operation Mode 4.7.4 Set Minimum Cover Alert limit Having a cover alert allows the user to identify the insufficient cover areas. In this menu you can set the minimum cover alert limit. The LED of the measurement center (MC) is lit when the cover is below this limit. -
Page 20: Measuring Range
Figure 17: Menu - Neighboring Rebar Correction 4.7.6 Measuring Range The pulse induction principle used by PM8000 has defined operating ranges and accuracies. The measuring range is dependent on the rebar size. The expected accuracy of the cover measurement is indicated in section 4.9 . -
Page 21: Signal Strength Indicator
Figure 18: Menu - Measuring Range Setting 4.7.7 Signal Strength Indicator When the signal strength indicator is activated, the device displays two indicators: left and right. These signal indicators respond to the sensor's movement, reacting as it approaches a metallic target on either side. When the sensor is directly above the target, both indicators will show the same signal level. -
Page 22: Units
Figure 21 : Menu - Units 4.7.10 Memory The PM8000 sensor has a memory capacity of 50 measurement files; each file can contain a maximum of 50 cover and/or diameter values. When the memory capacity is full, a warning icon is visible (as described in section 4.4). - Page 23 The user has then 3 options: 1. Do nothing. Any new spot measurement series will overwrite an existing one. 2. Manually delete all spot measurements series as explained in Figure 22. Figure 22 : Menu – Memory 3. Connect to pm app installed in an iPad to import all the spot measurement series. This automatically deletes all measurement series from the sensor memory.
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Page 24: Device Info
Figure 24 : pm app – import spot data For more information on how to import spot measurement data into pm app software, please refer to the tutorial videos of pm app or the Screening Eagle Technologies YouTube channel. 4.7.11 Device Info The device info is useful in case of firmware update, warranty case or repair request. -
Page 25: Pm8000 Measuring Range
USB-A to USB-C or USB-C to USB-C cable (not provided). 4.8 PM8000 Measuring Range The pulse induction principle used by PM8000 has defined operating ranges and accuracies. The measuring range is dependent on the rebar diameter. The expected accuracy of the cover... - Page 26 In deep mode, 180mm is the maximum depth limit for detection. Nevertheless, if the rebar diameter is known, the Figure 27 provides more precision on the maximum depth possible of detection following the rebar diameter. As explained in section 4.7.6, there is an Auto mode which switches automatically from Standard to Deep.
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Page 27: Measuring With The Cart
4.8.2 Measuring with the cart Figure 28: Configuration with cart (Scan measurement - connected) Spot measurement is possible with the cart. However, we recommend not to use the cart for spot measurement to save more depth detection capacity. Be aware that the cover values will be incorrectly underestimated in deep mode if there are welded or tied meshes in the concrete! If the rebar diameter is unknown, and rebar depth is <70mm, then the standard mode (Default) should be activated, as recommended in the pm app software,... -
Page 28: Factors Affecting The Measurement
Any ferromagnetic material within the sphere may have an influence on the signal value (e.g. during a calibration). The center of the sphere is the Measurement Center (MC). Figure 30: PM8000 sphere of influence 25. September 2024 © Copyright 2023, PROCEQ SA... -
Page 29: Resolution
(see section 4.9.4), it is recommended that the rebars should be exposed in one area to set the correct diameter in the PM8000 sensor for spot measurement (standalone) or in the pm app software for scan measurement (connected). -
Page 30: Factors Affecting Diameter Determination
Figure 32: PM8000 Error of Cover with fixed 16mm rebar diameter setting 4.9.4 Factors Affecting Diameter Determination Rebar diameter estimation is a challenging task with several factors affecting the estimation. It is recommended to measure in several locations to find the best conditions where there is a clean mesh without the presence of overlapping rebars, metallic object or wires/wire connecting first and second rebar layers. -
Page 31: Orientation
Figure 33: Minimum space for rebar diameter measurement 3. Closed welded reinforcement meshes or meshes with binding wires: This produces an additional signal which increases the displayed diameter value on PM8000 sensor or pm app software. Figure 34: Welded or wired rebars 4.9.5 Orientation... - Page 32 Figure 35: Sensor positioned at the midpoint line There are 3 methods to find the midpoint lines in both directions: 1. Use PM8000 sensor in spot measurement (locate mode) for locating horizontal and vertical rebars. Then, manually draw the midpoint lines in both directions. The sensor can also locate midpoint lines as described in section 5.3.1.
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Page 33: Welded Or Tied Meshes In Deep Mode
3. Use Proceq GPR for locating all rebars in both directions. Then manually draw the midpoint lines in both directions. For more information visit the following webpage : Ground Penetrating Radar | Ground Radar | Concrete Radar (screeningeagle.com) 4.9.6 Welded or tied meshes in deep mode The presence of welded or tied meshes in concrete may affect the cover measurement in deep mode measuring range. -
Page 34: Operation And Handling
PM8000 reminds the user to perform a calibration. In connected operation, the pm app software reminds also to perform a calibration. Hold PM8000 in free space (no metal within a 400 mm / 16” sphere) and press right side Key. 25. September 2024... -
Page 35: Measurement Process
Figure 38: Measurement process 5.3.1 Finding a Rebar, midpoint (="safe spot" to drill) or rebar orientation Place the PM8000 on the test surface and move it slowly in a chosen direction. The PM8000 reacts differently depending on its orientation relative to the rebars. - Page 36 4.9.5. Approaching a Rebar Figure 39: Approaching a Rebar Tracking indicator moves in opposite direction to the PM8000. The cover value is decreasing as the tracking indicator moves towards the Center Line.
- Page 37 Figure 40: Indication of a rebar Approaching a Midpoint Figure 41 : Approaching a midpoint 25. September 2024 © Copyright 2023, PROCEQ SA...
- Page 38 Distinguishing between a Rebar and a midpoint The midpoint is typically the safe spot to drill, located in the middle of two rebars (when not so far apart from each other). By moving the PM8000 sensor, it is possible to locate each rebar and the midpoint.
- Page 39 The Center Line (9) is perpendicular to the rebars. Figure 44: Sweeping parallel Little or no movement of the tracking Indicator. In this case turn the PM8000 by 90° and continue sweeping as described under Scenario A. Scenario C: Sweeping at an Angle to the Rebars The response on the screen will be like the case when you are sweeping perpendicular (Scenario A), but the movement of the tracking indicator will be slower.
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Page 40: Using Signal Strength Indicator
When the PM8000 rotates toward the rebar orientation, the cover value will reduce until a minimum value corresponding to the real rebar cover and real orientation. Figure 46: Rotating to find the rebar orientation 5.3.2 Using signal strength indicator By using the signal strength indicator, you can first validate the proximity of an object and then compare different objects in terms of size and depth. - Page 41 1. First, place the sensor on the standard rebar, which will serve as the reference. Press and hold the left key button for 2 seconds to calibrate the signal strength indicator. Left and right indicators show the same signal intensity. 2.
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Page 42: Map Out The Rebar Grid
1. Use Area scan measurements with the PM8000 sensor and pm app software (see tutorial videos, only available with PM8000 Pro). 2. Detect and mark rebars with PM8000 sensor in standalone by starting with the first rebar layer and then second rebar layer. It is very important to always position the sensor at the midpoint line. -
Page 43: Measurement Files Visualization & Storage
Available with Profometer PM8000 Lite, PM8000 and PM8000 Pro licenses, the spot measurements collected with the PM8000 sensor in standalone mode can be transferred to the iPad (as described in section 4.7.10); pm app software provide statistics of spot data &... - Page 44 Figure 52 : Spot data statistics & logbook 25. September 2024 © Copyright 2023, PROCEQ SA...
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Page 45: Line Scan Measurements
5.4.2 Line scan measurements Available exclusively with Profometer PM8000 and PM8000 Pro licenses, there are two views for line scan measurements: - The complete view by default, which displays rebar cover, diameter, and signal strength during and after measurement. - The simple view showing only rebar cover and diameter, ideal for reporting. -
Page 46: Multiline Scan Measurements
5.4.3 Multiline scan measurements Available only with Profometer PM8000 Pro license, the multiline scan is an ideal measurement mode for inspecting the rebar cover of concrete elements, especially columns and beams. It focuses exclusively on the first rebar layer (mat). Each line scan is flexible in terms of distance, and cells can be customized to include one or several rebars, depending on the spacing. -
Page 47: Image Processing
Figure 57: Customized rebar diameter setting How to determine rebar diameters? We recommend using reliable sources such as shop drawings or inspection holes. While the PM8000 can estimate rebar diameters, the values should be interpreted with caution, keeping in mind the limitations outlined in section 4.9.4. -
Page 48: Heat Maps
Figure 58: Advanced statistics view 5.4.7 Heat Maps Available exclusively with the Profometer PM8000 Pro, heat maps can be generated from multiline or area scan views. Augmented reality allows for the heat map to be superimposed onto the actual structure for enhanced visualization. - Page 49 The heat map for the multiline scan view can display cover values for each cell. The opacity can be adjusted to either show or hide the rebar within each cell. Each cell, containing one or more rebars, always displays the minimum detected cover value.
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Page 50: Data Storage, Reading, Sharing & Reporting
5.4.8 Data storage, reading, sharing & reporting Screening Eagle Workspace is the online platform where all measurements are stored automatically as soon as there is data connectivity (Wifi or mobile network) allowing synchronization of the iPad. Reading & reporting (pdf printing of tab) is possible. The tabs provide all the cover & diameters table values, screenshot views &... -
Page 51: Application Hints
Make sure to apply the neighbouring rebar correction whenever necessary! In case of quick rebar location or check cover & rebar diameter then use the PM8000 sensor without cart in standalone operation. The use of cart is adapted for line scan and area scan with pm app software. -
Page 52: Signal Strength Interpretation With Pm App Software
6.2 Signal strength interpretation with pm app software The signal strength visible in the line scan complete view provides qualitative information on the rebar setup; here are some typical cases when scanning reinforced concrete with PM8000 or PM8000 Pro: Rebars at the same depth with spacing >... - Page 53 > 50mm The line scan signal strength measured always superposition of all signals in the influence sphere of the device (see Figure 30: PM8000 sphere of influence). 25. September 2024 © Copyright 2023, PROCEQ SA...
- Page 54 Rebars which are closer to the surface, meaning having smaller cover values, have much larger signals. The signal strength of single rebar proportional 1/(cover) If a rebar is much closer to the surface than the neighboring one’s, its signal can hide the peaks of the lower one’s.
- Page 55 Any cover value triggered by a low-quality signal (low strength or superimposition) can be excluded manually with long push on selected rebar (through iPad screen). Only available only with Profometer PM8000 & PM8000 Pro users. For DBV statistics (see 5.4.6), cover values triggered by a low-quality peak signal (low strength or superimposition) should be considered for exclusion with long push on selected rebar (through iPad screen).
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Page 56: Technical Specification
7 Technical Specification Measurement Principle Eddy current Cover Measurement Max. Depth Up to 185mm / 7.3 in Accuracy Depending on Depth +/- 1mm to 4 mm / 0.04in to 0.16 in Rebar Diameter Max. Depth Up to 63 mm / 2.5un Accuracy +/- rebar diameter Encoder accuracy... - Page 57 The English version of the content remains the official version. All translated content should bear an appropriate notice to this effect. For safety and liability information, please download at www.screeningeagle.com/safety-and-liability Subject to change. Copyright © 2023 by Proceq SA, Schwerzenbach. All rights reserved. 25.
- Page 58 OUTH MERICA HQ - S WITZERLAND Proceq SAO Equipamentos de Mediçao Ltda. Ringstrasse 2 Rua Paes Leme 136 CH-8603 Schwerzenbach Pinheiros, Switzerland Sao Paulo SP 05424-010 Brasil +41 43 355 38 00 T +55 11 3083 3889 UROPE IDDLE Screening Eagle UK Limited Sharjah Airport Bedford i-lab, International Free Zone...
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