The fastest way to map corrosion in reinforced concrete

Profometer Corrosion Potential

PM8500

The most complete half-cell solution for rapid on-site mapping of corrosion potential

World's fastest data acquisition using our unique wheel electrodes

Unmatched capabilities with real-time data analytics and visualization

Light and wireless sensor for comfortable measurements

Applications:

Identifying areas of corrosion in reinforced concrete structures / Estimation of corrosion potential of rebars / Estimation of concrete durability / Investigation of structural failures / Evaluation of effectiveness of corrosion repairs

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Advanced software for on-site corrosion likelihood analysis, connected to the most compact sensor and unique wheel electrodes for the fastest area scanning

Productivity

Boost your productivity up to 40 times faster than any other rod electrode on the market using our unique wheel electrodes

Ergonomics

Compact, ultra-light and wireless for comfortable measurements in all types of concrete elements

Onsite Data

Best-in-class app for corrosion assessment with several views for easy data evaluation and interpretation

Profometer App Corrosion

Elevate your corrosion assessment to the next level

Regular updates & releases
Customer-centric development
Unparalleled features to optimize workflow

Identify areas of corrosion likelihood in reinforced concrete elements effortlessly and reliably using the half-cell potential method. Get insightful 2D imaging, heatmaps and advanced stats for reporting and collaboration anywhere at anytime.

Collect reliable data to inform decision-making and ensure the longevity of the structure.

This intelligent, feature-rich app gets better and better over time, so you always have access to continuous innovation and over-the-air updates.

Regular updates & releases
Customer-centric development
Unparalleled features to optimize workflow

Collect reliable data to inform decision-making and ensure the longevity of the structure.

This intelligent, feature-rich app gets better and better over time, so you always have access to continuous innovation and over-the-air updates.

Profometer App Corrosion

App Version 2

Say hello to Corrosion Mapping!

This second release provides great features to users of Profometer Corrosion PM8500.

Top capabilities introduced with App Version 2:

Corrosion Half-Cell Potential scans are now possible
Spot Scan and Area Scan for mapping small and big elements
Autosave Mode for quicker spot scans
Skipping cells, a fixed distance, and lines, optimizing the workflow for data acquisition
Deleting and overwriting data, optimizing the flexibility of data collection
Pause, stop, resume, and start measurements at any time, for more freedom
Flexible and fixed grid, for easier measurements
Basic and Expert Mode for creating different types of graphs
Creating photo, audio, and written comments for better insights
Real-time web-based data for safe storage, exporting and instant collaboration
Other features: Ambient temperature correction, Calibration of length, Custom gradient maps with flexible colour palette

... and much more.

Continuous software service, maintenance and bug fixes. Compatibility upgrades to fully support the latest generation iPads and the latest version of iOS to enhance your productivity.

Say hello to Corrosion Mapping!

This second release provides great features to users of Profometer Corrosion PM8500.

Top capabilities introduced with App Version 2:

Corrosion Half-Cell Potential scans are now possible
Spot Scan and Area Scan for mapping small and big elements
Autosave Mode for quicker spot scans
Skipping cells, a fixed distance, and lines, optimizing the workflow for data acquisition
Deleting and overwriting data, optimizing the flexibility of data collection
Pause, stop, resume, and start measurements at any time, for more freedom
Flexible and fixed grid, for easier measurements
Basic and Expert Mode for creating different types of graphs
Creating photo, audio, and written comments for better insights
Real-time web-based data for safe storage, exporting and instant collaboration
Other features: Ambient temperature correction, Calibration of length, Custom gradient maps with flexible colour palette

... and much more.

Continuous software service, maintenance and bug fixes. Compatibility upgrades to fully support the latest generation iPads and the latest version of iOS to enhance your productivity.

Profometer App Corrosion

Tech Specs

Display Unit

Any compatible Apple iPad (iOS 11.0 and higher)

Scanning Options

• Scan with a fixed grid or flexible grid
• Scan horizontally or vertically
• Scan forwards or negative
• Return to start for each new line or scan in an S-pattern
• Select any cell and continue scanning from there
• Start a scan from any corner
• Set and maintain zoom level while scanning
• Skip a preset distance
• Open a previous scan and continue scanning from any cell

Export formats

• JPG (Screenshot)
• PNG
• CSV
• HTML
• DXF

Display Unit Specs*:

• Latest Apple® iPad recommended (iPad with iOS 11.0 and higher)
• Screen size: From 7.9" to 12.9"
• Resolution: Up to 2732-by-2048
• Memory: Up to 2TB
• Weight: Down to 301 g / 10.6 oz
• Camera: Up to 12MP Wide and 10MP Ultra Wide
• Optional: USB-C, 5G, Face ID

Display Unit Sensors*:

• LiDAR Scanner (optional)
• Three-axis gyro
• Accelerometer
• Ambient light sensor
• Barometer
• Built-in GPS/GNSS

^{* Depending on iPad model iPad is a trademark of Apple Inc.; iOS is a registered trademark of Cisco in the US and is used by Apple under license}

Instrument

Tech Specs

Technology

Half Cell Potential

Measured Quantity

Corrosion potential in milivolts [mV]

Connection

Wireless - Bluetooth

Cover Measuring depth

First rebar layer

Voltage Measurement Range

-3000mV to +3000mV

Resolution

+-1mV

Input Impedance

100MOhm

Encoder Accuracy

+/- 0.5 mm / 0.02 in + 0.78% of measured length
Resolution: 3.3 mm / 0.13 in
(128 steps / rotation)

Max Scanning Speed

1 m/s - 3.3 ft/s

Max Area Scan

100 x 100 m - 330 x 330 ft

Dimensions

Sensor unit

(127 x 59 x 56)mm / (5 x 2.3 x 2.2)in without holder
(127 x 98 x 72)mm / (5 x 3.9 x 2.8)in with holder

Rod electrode

D= 36mm x 155mm / D=1.4 in x 6.1in with protection-cap

One wheel electrode

(194 x 138 x 127)mm / (7.6 x 5.4 x 5)in without telescopic rod
(2000 x 138 x 127)mm / (78.7 x 5.4 x 5)in with extended telescopic rod
(700 x 138 x 127)mm / (27.6 x 5.4 x 5)in with pulled in telescopic rod

Four wheel electrode

(830 x 350 x 140)mm / (32.6 x 13.8 x 5.5)in without telescopic rod
(2150 x 830 x 140)mm / (84.6 x 32.6 x 5.5)in with extended telescopic rod
(840 x 830 x 140)mm / (32.8 x 32.6 x 5.5)in with pulled in telescopic rod

Weight

Sensor unit

150g / 0.33 lbs without holder
220g / 0.49 lbs with holder

Rod electrode

120g / 0.26 lbs without cable / without cupper sulfate, without Interface-Box

One wheel electrode

2000g / 4.41 lbs without fluid, with interfacebox an telescopic rod
+ 435g / 0.96 lbs including fluid

Four wheel electrode

6900g / 15.2 lbs without fluid
+ 435g / 0.96 lbs per wheel including fluid

Standard kit (all items including carrying case)

7400g / 16.3 lbs

One wheel kit (all items including cartoon box)

2900g / 6.39 lbs

Four wheel kit (all items including carrying case)

17660g / 38.93 lbs

Battery

1xAA (NiMH) rechargeable or non rechargeable
Removable
Flight-safe
8 Hours autonomy
USB-C charger

Environmental Conditions

Humidity <95% RH, non-condensing
Operating temperature: -10ºC to +50ºC

PDF Version

PM8500 brochure

Ready to explore further?

Browse the full brochure

Download brochure

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Our Accessories

39260330

Ball joint for one-wheel electrode

Ball joint for one-wheel electrode

Ball joint accessory for the one-wheel electrode to connect to the telescopic rod for more flexible measurements.

Add to cart

Popular iPad Accessories

Accessories for iPad

Many diverse possibilities to protect and transport your iPad. There are great alternatives in the market to achieve the right protection for your intended application.

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Standards & Guidelines

Standards

ASTM C 876-15

DGZfP B3

JGJ/T 152 ( China )

JSCE E 601

RILEM TC 154-EMC

SIA 2006 ( Switzerland )

UNI 10174

ОДМ 218.3.001-2010

FAQ

How does Profometer Corrosion PM8500 work?

The Profometer Corrosion PM8500 is based on a technology called "Half Cell Potential". It works by measuring the electrochemical potential difference between a reference electrode and a rebar embedded in the concrete. This...

What are the benefits of using Profometer Corrosion PM8500?

Using the PM8500 provides fast and accurate information about the corrosion potential of reinforced concrete structures. It can help you save money by identifying and mitigating corrosion damage before it becomes...

What are the advantages of using Half Cell Potential to measure concrete corrosion probability?

Some advantages of using Half Cell Potential to measure concrete corrosion probability are:

Non-destructive test: Only a ground cable needs to be connected to a rebar, the electrical continuity of the rebar mesh needs...

Is there a maximum cover depth at which the PM8500 electrode can detect corrosion in a rebar?

The maximum detectable depth is the first rebar layer (or mat). Typically, this corresponds to a maximum rebar cover of 80mm.

What is the sampling rate of the Profometer PM8500?

The sampling rate of the Profometer PM8500 is 900Hz.

How is the reference electrode selected for use in a half cell potential corrosion tester?

The reference electrode used in a half cell potential corrosion tester is selected based on the specific application and environment being tested. The PM8500 includes a copper/copper (Cu/CuSO4) reference electrode, but...

What factors can affect the accuracy of a half cell potential corrosion test?

Factors that can affect the accuracy of a half cell potential corrosion test include the selection of the reference electrode, the quality of the electrolyte solution, the preparation of the concrete surface being tested,...

How do moisture and temperature affects the readings?

Moisture can have a large effect of the measured potential leading to more negative values. High temperature causes concrete resistivity to be lower, which leads to more negative potentials, while low temperature causes...

How does the concrete cover influence the corrosion inspection results?

The potential becomes more positive with increasing concrete cover. Very low concrete cover can lead to more negative potentials, which may indicate higher levels of corrosion. It is recommended to measure the concrete...

How do I connect to a rebar?

We always recommend using Profometer PM8000 or GP8x00 to locate the rebar. Once the rebar is located, drill the concrete cover and connect the ground cable to it. The connection should be tested for electrical continuity,...

Do I need to pre-wet the concrete surface before the testing?

The contact between the pore solution of the concrete and the probe can be impaired by a dried out concrete skin. This can greatly increase the electrical resistivity of the concrete.

It is recommended to moisten the...

Can I have more information about what type of surface can be tested (coated, uncoated), how to do maintenance and cleaning of the electrodes, or any other valuable information?

Please, refer and download the Quick Start Guide and the Quick Reference Guide available under the "Download" section of the Profometer PM8500 page.

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