Embedment location
Show the electrode position relative to reinforcement, cover, repair zone and monitoring point.
REINFORCED-CONCRETE MONITORING
MnO₂ Reference Electrodes for Concrete Corrosion Monitoring
Solid-state manganese dioxide reference electrodes for permanent corrosion-potential and cathodic-protection monitoring in reinforced-concrete structures.
Potential and long-term stability must be evaluated against a defined comparison scale, temperature, embedment condition, conditioning method and acceptance test. Generic lifetime claims are not project guarantees.
Application review
Configurable interfaces
Drawing-based supply
Project documents
PRODUCT DEFINITION
Permanent Reference Monitoring Inside Concrete
MnO₂ reference electrodes can be embedded in reinforced concrete to provide repeatable monitoring points over long periods. The electrode chemistry, solid electrolyte or gel, housing, junction, cable seal, placement, concrete environment, conditioning and acceptance method must work as one measurement assembly.
Application fit
This permanent field cell is configured for embedment and monitoring in compatible reinforced-concrete projects. Laboratory and battery electrodes require different construction and acceptance criteria.
Before requesting a quote
Define the Measurement Basis and Installation
A permanent MnO₂ cell is selected for the specified concrete monitoring system, not by electrode name alone. Embedment, local concrete condition and interpretation scale must be defined together.
Concrete conditions
Document moisture, pore environment, curing or repair material assumptions relevant to the cell.
Measurement basis
Specify the comparison scale, conditioning, temperature and acceptance tolerance for reported potential.
Connection and release
Define lead length, seal, connector, continuity checks, drawing and installation records.
CONFIGURATIONS
Products and Supply Options
Final construction follows the approved application, drawing, acceptance criteria and purchase specification.
Embedded MnO₂ Electrode
Compact permanent reference point for new concrete construction.
Retrofit Monitoring Electrode
Configuration reviewed for drilled or repair-area installation.
Electrode with Long Cable
Specified cable and gland for remote data collection points.
Custom Monitoring Assembly
Housing, mounting, connector and project-document options by review.
TECHNICAL SPECIFICATION
Parameters to Confirm Before Purchase
Values without a comparison basis, test method or operating condition are not directly comparable. Unverified values must remain subject to application review.
| Electrode chemistry | Manganese dioxide system and verified internal electrolyte or gel construction. |
|---|---|
| Potential basis | Nominal potential, comparison scale, tolerance and conditioning stated together. |
| Stability | Acceptance duration, allowable drift and test environment. |
| Temperature | Verified operating range and any applicable temperature correction. |
| Housing and junction | Body material, dimensions, porous interface and concrete compatibility. |
| Cable and gland | Cable type, length, insulation, water barrier, gland and termination. |
| Embedment | Placement, concrete cover, orientation, connection point and commissioning method. |
| Records | Drawing, batch traceability, calibration or acceptance record and installation guidance. |
APPLICATIONS
Typical Project Uses
Application names route the inquiry; they do not replace an engineering compatibility review.
01
Bridges and decks
02
Parking structures
03
Marine concrete
04
Tunnels and foundations
05
Concrete ICCP systems
06
Long-term corrosion monitoring
Inside HELE
Tie Every Claim to an Acceptance Basis
The drawing, material or chemistry, dimensions, electrical interface, cable sealing and acceptance test should be controlled by the purchase specification and agreed ITP.
Performance statements must identify the comparison scale, environment, temperature, duration and method. Service life remains conditional on installation and operating conditions.
Documents by Agreed Scope
- Approved drawing
- Material or batch record
- Dimensional inspection
- Electrical checks
- Calibration or acceptance data
- Installation guidance
- Marking and traceability
- Packing record
MnO₂ vs Other Reference Electrodes
Different reference electrodes are used for different monitoring environments. MnO₂ reference electrodes are commonly reviewed for reinforced concrete CP monitoring, while other reference electrodes may be more suitable for seawater, rugged marine monitoring, or soil applications.
Zinc Reference Electrode
Seawater
Marine
Rugged
Designed for seawater and marine environments. Built for rugged, long-term monitoring in demanding conditions.
Best For:Seawater structures, marine CP, offshore monitoring, ship hulls
Not Ideal For:Soil, buried concrete, or embedded concrete applications
Ag/AgCl Reference Electrode
Seawater
Chloride
Marine CP
Stable and widely used in chloride-rich environments and marine CP systems.
Best For:Seawater intake systems, chloride environments, marine CP, ship hulls
Not Ideal For:Long-term embedded concrete or high-alkalinity concrete
View specifications
MnO₂ Reference Electrode
Concrete
Embedded
Long-Term
Ideal for concrete and embedded installations requiring long-term stability and low maintenance.
Best For:Reinforced concrete, bridge decks, parking structures, embedded monitoring
Not Ideal For:Seawater immersion or high-chloride marine environments
View specifications
Cu/CuSO₄ Reference Electrode
Soil
Buried CP
Pipeline
Commonly used in soil and buried environments for CP and pipeline monitoring.
Best For:Soil environments, buried pipelines, tank bottoms, underground tanks
Not Ideal For:Seawater or high-chloride marine applications
Selection note: Reference electrode selection should follow the monitoring environment, installation method, measurement target, cable route, and project specification. Zinc reference electrodes are not universal replacements for Ag/AgCl, MnO₂, or Cu/CuSO₄ electrodes.
FAQ
Technical and Procurement Questions
How do I confirm that this is the correct product?
Match the product chemistry and construction to the protected asset, environment, measurement or protection task, operating conditions, installation interface and governing specification.
Which values need test conditions?
Potential, tolerance, stability, drift, temperature coefficient, current output or service life must be tied to the applicable comparison scale, electrolyte, temperature, duration and method.
Can the assembly be customized?
Housing, dimensions, cable, connector, thread, backfill, package, mounting and documentation can be reviewed against the approved drawing and validation scope.
What documents can be supplied?
Depending on the purchase order, available records may include approved drawings, material or batch records, dimensional inspection, electrical checks, calibration or acceptance data, marking and packing.
Who is responsible for final system design?
HELE can review product manufacturability and stated supply scope. The project parties must define responsibility for system design, installation, commissioning, calibration, maintenance and final compliance.
What should be included in the RFQ?
Provide structure type, new-build or retrofit condition, monitoring or control purpose, comparison scale and tolerance, concrete exposure, temperature, embedment method and depth, housing dimensions, cable length and termination, calibration criteria, quantity and project drawings.
Inquiry
Request a Reference Electrode Review
Share the concrete structure, embedment drawing and monitoring basis. HELE can review the MnO₂ cell construction, lead arrangement and order-specific acceptance evidence.
- ✓ Structure and embedment position
- ✓ Concrete condition and monitoring task
- ✓ Cable, seal and connector details
- ✓ Quantity and test-record requirements
Prefer email?
sales@heletitanium.comFactory & Engineering Center
Titanium Valley, Baoji City, Shaanxi Province, China