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Half-Cell Meter

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Half-Cell Meter Specification

Mounting Type
Handheld

Number of Specimens
1

Response Time
<1 second

Resolution
1 mV

Test Range
0 to 2V

Equipment Type
Half-Cell Potential Meter

Accuracy
0.5% of reading

Power Supply
9V battery

Temperature
0C to 50C

Measuring Range
0 to 2V

Display Type
Digital LCD

Application
Measurement of corrosion potential in reinforced concrete

Features
Portable, robust construction, easy to operate, non-destructive measurement

Automation Grade
Manual

Humidity
0-90% RH (non-condensing)

Operating Voltage
9V DC

Usage
Corrosion analysis in civil structures

Machine Weight
1.5 kg

Control Mode
Manual

Housing Material
ABS plastic

Dimensions
250 x 150 x 80 mm

Cable Length
3 meters

Data Storage
Up to 2000 readings

Battery Type
Rechargeable Li-ion

Sampling Rate
1 reading/sec

Environmental Compliance
RoHS

Operating Temperature Range
0C to 50C

Calibration Method
Manual & automatic supported

Protection Class
IP65

Alarm Function
Low battery indicator

Electrode Type
Copper-copper sulphate reference

Half-Cell Meter Trade Information

Payment Terms
Cheque, Cash in Advance (CID), Cash Advance (CA)

About Half-Cell Meter

As a Authorized dealer we are engaged in providing the broad assortment of Elcometer, UK make 'Concrete Inspection' Equipments.

Covermeters & Half-Cell Meters

A covermeter, or rebar locator, is a gauge that measures the thickness of concrete cover over steel reinforcement bars and metal pipes. The covermeter can tell you the depth of the rebar, the location and orientation of reinforcement bar (rebar) and determine the diameter of the rebar.
A rebar locator is used to determine the presence and orientation of steel reinforcement rebars under the surface of the concrete.
A contractor engaged in maintenance work will be familiar with the problem of accurately locating the exact position of rebar, wall ties, studs and other metal fasteners. These low cost, simple to use gauges can meet their everyday requirements.
Elcometer 331 Half-Cell Meters is easy to use half-cell meters measure the condition and potential corrosion of rebars and steel structures within concrete.
When corrosion occurs the ferric oxide protective layer surrounding the concrete breaks down allowing an electrochemical reaction between the steel and the concrete.
In the half-cell test, a reference electrode is passed over the surface of the concrete and the potential voltage difference is recorded. These potential voltage readings show where corrosion is likely to be, or is currently present.
The Elcometer 331 Half-Cell Meter is available in two models - Model H and Model HM.
Elcometer 331 Model H: entry level gauge without memory which allows users to measure the half-cell potential in concrete structures
Elcometer 331 Model HM: supplied with memory and allows users to store up to 240,000 readings in either linear or grid batches.

Key features:

Large, easy to read backlit display: for easy viewing in dark environments
Single handed operation: most functions can be accessed & controlled through 4 simple keys
Intuitive menus in multiple languages: allows use straight out of the box
Rechargeable battery supply: battery packs can be charged inside or outside the gauge
Ergonomically shaped case: for ease of use and comfort, with a gentle curve to fit snugly against the hip
Powerful CoverMaster Software (supplied with the Model HM): ultimate data management tool to store half-cell readings and produce professional reports quickly and easily

Product Features :

Half-Cell measurement
Large graphics display with backlight
Multiple language menu structure
Rugged waterproof case (IP65)
Adjustable beep volume & earphone socket
Covermaster software
Statistics
Date & Time
Memory
Linear batch memory
Grid batch memory

Efficient Corrosion Analysis

This half-cell potential meter is designed for non-destructive evaluation of corrosion activity in reinforced concrete. Its precise readings help in assessing the likelihood of steel corrosion, making it an indispensable tool for structural health monitoring, maintenance planning, and lifespan extension of civil structures.

Rugged and User-Friendly Design

Housed in durable ABS plastic and conforming to IP65, the device is dust-tight and water-resistant. With a handheld mounting style and lightweight construction (1.5 kg), it ensures effortless portability and operation during on-site inspections.

Advanced Features and Data Management

The meter includes an easy-to-read digital LCD display, manual or automatic calibration options, real-time low battery alarms, and the capability to store up to 2000 measurements. Rapid sampling at 1 reading per second streamlines thorough site evaluations and record keeping.

FAQs of Half-Cell Meter:

Q: How do I use the half-cell meter to measure corrosion potential in reinforced concrete?

A: Attach the copper-copper sulphate reference electrode to the structure, ensuring good contact with the concrete surface. Connect the 3-meter cable, calibrate the meter if necessary (manual or automatic), and power up using the rechargeable Li-ion battery. Place the electrode and record readings via the digital LCD. Each measurement reflects the corrosion potential in the tested area.

Q: What is the recommended process for calibrating the device?

A: Calibration can be performed either manually or automatically, depending on preference and accuracy requirements. Follow the instructions provided in the user manual, using prepared calibration solutions and ensuring the probe and meter are cleaned and conditioned beforehand for reliable results.

Q: When should I consider performing a data download or storage management?

A: It is best to review and transfer stored data when the device approaches its maximum capacity of 2000 readings or before conducting multiple site surveys. Regular data management ensures comprehensive record-keeping and prevents data loss during critical inspections.

Q: Where can the half-cell meter be effectively utilized?

A: The meter is well-suited for civil engineering applications, particularly for the inspection and maintenance of bridges, parking structures, buildings, and other concrete constructions, wherever corrosion of embedded steel may be a concern.

Q: What benefits does the IP65 rating offer in field applications?

A: The IP65 classification provides robust protection against dust and water jets, allowing the meter to be reliably used in a variety of outdoor environments and under harsh job site conditions without risk of damage.

Q: How accurate are the readings, and what resolution does the device provide?

A: Readings are accurate to within 0.5% of the measured value, with a resolution of 1 mV. This ensures highly detailed assessments of corrosion potential for informed maintenance decisions.

Q: What are the advantages of the meters non-destructive measurement feature?

A: Non-destructive measurements enable the assessment of corrosion activity without damaging the concrete structure, preserving its integrity while providing crucial information for maintenance and repair planning.

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