PM8000 Cover Meter

Since the early 1970s, Proceq have been developing rebar locators and concrete cover meters. The result is the Profometer PM8000, the world's most compact, versatile and precise cover meter and the best Profometer yet!

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GS9000 Multichannel GPR for 3D Utility Mapping and Structural Assessment

Overview | GX1 vs GX2 | SUE & Utilities | Structures & Pavements | Software & Outputs | Case Studies | Specifications | Support

Discuss Your Application

Collect high-density, georeferenced GPR data across wide areas and view the subsurface in 3D as you scan. Choose the GX2 array for SUE and utility mapping, or the GX1 array for structural, bridge and pavement investigations.

Book a GS9000 Demonstration

Best suited to:

  • Subsurface utility engineering
  • Utility locating and mapping
  • Civil and survey contractors
  • Road and corridor investigations
  • Void and subsurface anomaly surveys

Best suited to:

  • Bridge-deck investigations
  • Concrete cover and moisture mapping
  • Pavement and asphalt-layer assessment
  • Reinforcement mapping
  • Structural deterioration surveys

Recommended array: GX2

Recommended array: GX1

Why use the GS9000 instead of a conventional single-channel GPR?

Cover more ground

Collect multiple parallel profiles in one pass instead of uilding a grid line by line.

See results during acquisition

View georeferenced radargrams and time-slice information in the field rather than waiting until the data is returned to the office.

Produce repeatable mapped data

Combine wheel-positioned GPR data with GNSS, project coordinates and survey linework.

Use one platform for two very different applications

Exchange GX1 and GX2 arrays without purchasing two complete cart platforms.

High-density 3D GPR mapping for SUE and utility investigations

The GX2 transforms the GS9000 into a high-density subsurface utility mapping system. Its 11-channel, low-frequency GPR array captures an 83 cm-wide swath in each pass, helping operators detect and map buried pipes, ducts, cables, voids and other subsurface features. Live georeferenced data lets SUE teams review coverage on site and produce accurate CAD, GIS and project-coordinate deliverables.

  • Utility corridor mapping
  • Detection of pipes, ducts and cables
  • Mapping non-conductive services that may not respond to electromagnetic locating
  • Congested service investigations
  • Road-crossing and easement surveys
  • Potential void and cavity investigation
  • Pre-excavation and design-stage surveys
  • Utility mapping to project or local coordinates

The SUE field workflow

1. Plan the survey

Load satellite imagery, CAD information, project coordinates or survey control.

2. Collect dense multichannel data

Survey an approximately 0.82 m-wide swath with 11 channels in each pass.

3. Review data live

Examine radargrams, georeferenced time slices and marked features while still on site.

4. Interpret and digitise

Add points, linework, tags, photographs and field observations.

5. Process and deliver

Merge survey areas, apply processing and export mapped information for the customer’s CAD, GIS or reporting workflow.

SUE Outputs and Deliverables

PM8000 Lite with 61 mm cover depth indicated
Model

PM8000 Lite

Description

Spot measurement without data logging for brief quality control and rebar/metal detection

Technology

Eddy-current

Max Cover Depth Range

Up to 185 mm

Cover Accuracy

±1 mm below 60 mm Increasing to ±4 mm at maximum depth range

Encoder Accuracy

N/A

Max Measurement Speed

0.5m/s

PM8000 and iPad with columns of data
Model

PM8000

Description

Spot measurement for brief quality control & rebar/metal detection. Data logging for traceability, Line Scan view for rebar depth slice.

Technology

Eddy-current

Max Cover Depth Range

Up to 185 mm

Cover Accuracy

±1 mm below 60 mm Increasing to ±4 mm at maximum depth range

Encoder Accuracy

±0.5mm + 0.5% of measured length

Max Measurement Speed

0.5m/s

PM8000 in wheeled cart and augmented reality projection on iPad
Model

PM8000 Pro

Description

Full configuration for scanning, mapping, spot measurements and advanced statistics for quality control, durability & structural resistance assessment.

Technology

Eddy-current

Max Cover Depth Range

Up to 185 mm

Cover Accuracy

±1 mm below 60 mm Increasing to ±4 mm at maximum depth range

Encoder Accuracy

±0.5mm + 0.5% of measured length

Max Measurement Speed

0.5m/s

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PM8000 NRC Update

Rebar cover depth measurement over curved elements like columns is now more accurate with the Neighbouring Rebar Correction Update for the PM8000 Cover Meter.

Read More...

Cover Meter Operation Procedure

A pair of video tutorials on operation of concrete rebar cover meters, and the particular operation requirements for the Profometer PM8000.

Read More...

Packages for the PM8000 Cover Meter

The PM8000 Cover meter range includes the PM8000 Lite, PM8000 and PM8000 Pro. This article clarifies the functionality of each.

Read More...
BS 1881, Part 204
Testing concrete. Recommendations on the use of electromagnetic cover meters (incorporating amendment No. 1)
Other Products...
TS 01733.2
Clarification on placement of steel for the reinforcement of concrete – Amendments to IC-DC-B80 (TS 01733.2) Specification D&C B80 Concrete Work for Bridges, Ed.3 Rev.6
Other Products...
PM8000 User Manual

System Manual for the PM8000, including Lite and Pro operation modes.

PM8000 Manufacturer Brochure

Manufacture brochure including technical specifications.

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Profometer PM8000 Cover Meter

A cover meter is used to precisely measure the depth from the surface of a concrete element to the top of the embedded reinforcing steel.

Cover depth is a critical value for the long term health and durability of structures, with small cover deficits risking decades of reduction in the service life of a structure.

Since the early 1970s, Proceq have been developing rebar locators and concrete cover meters.

The result is the Profometer PM8000, the world's most compact, versatile and precise cover meter and the best Profometer yet!

  • Unrivalled precision thanks to a sophisticated data interpolation & an intelligent auto-mode
  • Superior ergonomics with a compact, ultra light-weight and fully wireless sensor
  • Unmatched productivity with instant availability of data analytics and visualisation
  • The Profometer PM8000 replaces all previous Profoscope and Profometer cover meters / rebar locators.  

Applications

The PM8000 is ideal where the location and depth of the rebar needs to be known, this includes:

  • Cover checks on existing structures for corrosion or durability survey
  • Precise rebar location for QA spot checks on precast yards
  • Bar diameter estimation where value is not critical
  • Mapping of structures with unknown rebar layout for record keeping
  • Condition assessment of deteriorated reinforced concrete.

Sensor Hardware

The PM8000 probe can be used independently for spot checks of cover depth and rebar diameter estimates, connect to the iPad App to download measurement sets for statistical analysis.

Snap on the wheeled cart for the PM8000 and PM8000 Pro models, to start scanning and mapping rebar layouts inside the iPad App, connecting via Bluetooth. An extension rod accessory is available for hard to reach areas.

iPad Application

Measurement Principle

The Profometer uses electromagnetic eddy current pulse induction to detect rebar. Multiple coil arrangements 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 produced. They induce a magnetic field in the opposite direction. The resulting change in voltage can be utilised for the measurement.

Advanced signal processing allows localisation of a rebar, determination of the cover and estimation of the rebar diameter.

This method is unaffected by all nonconductive materials such as concrete, wood, plastics, bricks etc. However any kind of conductive materials within the magnetic field will have an influence on the measurement to the quality and the strength of the material.

Available Models

PM8000 Lite
Spot measurement for brief quality control & rebar/metal detection

PM8000
Spot and Line Scan measurement modes quality control & rebar/metal detection as well as simple visualisation

PM8000 Pro
Full configuration for scanning, mapping, spot measurements and advanced statistics for quality control, durability & structural resistance assessment.

Why the GS9000 matters for SUE businesses

  • Increase area covered per field day
  • Reduce the number of manually positioned survey lines
  • Improve coverage in congested corridors
  • Review coverage before leaving site
  • Produce higher-value mapped deliverables
  • Combine GPR and GNSS in one workflow
  • Retain raw data for later reinterpretation
  • Expand from locating into mapping and subsurface modelling

Book a SUE Workflow Demonstration

High-resolution multichannel GPR for structures, bridges and pavements

The GX1 transforms the GS9000 into a high-resolution structural assessment system for concrete slabs, bridge decks and pavements. Its dense, dual-polarisation array captures detailed 3D data across wide areas, supporting reinforcement and cover mapping, moisture and deterioration assessment, and analysis of asphalt and pavement layers. Live visualisation helps confirm survey coverage on site, while post-processing tools produce clear, report-ready condition maps.

  • Bridge-deck reinforcement and condition mapping
  • Concrete-cover mapping
  • Reinforcement layout and spacing
  • Moisture-related and deterioration mapping
  • Asphalt and pavement-layer thickness
  • Road and runway investigations
  • Detection of embedded features
  • Large-area concrete-slab investigations
  • Comparative and repeat surveys

The structural assessment workflow

1. Define the inspection area

Import the structure, bridge, pavement or survey background.

2. Collect closely spaced profiles

Capture 35 longitudinal and 15 cross-polarised channels with dense spacing.

3. Review coverage in the field

Use live radargrams and time slices to confirm that the required area has been captured.

4. Process the dataset

Apply velocity, gain, background removal, migration, filtering and topographic correction as appropriate.

5. Generate diagnostic maps

Create depth slices, reinforcement maps, layer information or application-specific condition maps.

6. Integrate with the engineering assessment

Export figures, mapped anomalies and raw data for inclusion in the engineer’s final interpretation and report.

Structural outputs and engineering value

Field information

Processed Diagnostic Information

Engineering deliverables

When to use the GS9000 rather than a handheld GPR

Use a handheld or single-channel GPR when…

Use the GS9000 when…

  • The inspection area is small
  • You need local marking before drilling
  • Rapid spot checks are sufficient
  • Manoeuvrability is the main priority
  • The output is primarily site marking
  • Large areas must be covered
  • A completely mapped dataset is required
  • Large datasets are required
  • Productivity and spatial continuity are priorities
  • The output must support reporting or engineering interpretation

Book a Structural Assessment Demonstration

One GS9000 platform

  • Onboard instantaneously mapped results
  • Interchangeable array modules
  • Foldable carbon-fibre cart
  • Rear-wheel encoders
  • Hot-swappable power banks
  • Wireless iPad operation
  • IP65 protection
  • Integrated GNSS
  • Approximately 1–5 cm real-time GNSS accuracy where suitable corrections and conditions are available
  • Free-path and structured survey methodologies

Field software, post-processing and Workspace

Field App

Workspace

GPR Insights post-processing

  • Live radargrams and time slices
  • Satellite, GNSS and CAD overlays
  • Tags, photographs, voice markers and linework
  • Field calibration and processing
  • Immediate review of survey coverage
  • Synchronise projects
  • Store and share data
  • Collaborate remotely
  • Run connected GNSS and conversion services
  • Share projects through a URL
  • Merge multiple field projects
  • Advanced 2D and 3D visualisation
  • Filtering and migration
  • Topographic correction
  • Application-specific mapping tools

Configurations and what is included

GS9000 cart with:

  • GX1 and/or GX2 array option
  • MA8000 GNSS receiver and correction options
  • Latest version of GS App with live updates
  • Advanced GPR Insights processing software access
  • Cloud storage on Workspace
  • Batteries and chargers
  • Training
  • Commissioning
  • Kit with all required cables and tools

Why purchase from PCTE

  • Australian and New Zealand application advice
  • Local demonstrations
  • Configuration selection
  • On-site commissioning
  • Operator training
  • Data interpretation and workflow training
  • Local technical support
  • Service and repair coordination
  • Assistance with GNSS, coordinate systems and deliverables
  • Access to related GPR and structural NDT equipment

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