Level Control Electrode with Multi-stranded Copper Wire (2X2.5sqmm): Comprehensive Details
I. Product-Specific Details
1. Technical Specifications and Electrical Performance
The Level Control Electrode with 2X2.5sqmm multi-
Stranded Copper Wire is engineered with precise technical specifications to ensure accurate and reliable liquid level detection. At its core, the electrode features two 2.5sqmm multi-stranded
Copper Conductors, each composed of 19 individual copper wires with a diameter of 0.41mm, twisted together to form a flexible yet robust conductor. This configuration provides a total cross-sectional area of 2.5mm² per conductor, balancing conductivity and
Flexibility for optimal performance.
The electrical conductivity of the high-purity electrolytic copper (purity ≥99.95%) used in the conductors is a key performance metric, with a minimum conductivity of 100% IACS (International Annealed Copper Standard). This ensures efficient transmission of the low-voltage signals (typically 5-24V DC) used in level sensing applications, with minimal signal loss. The DC resistance of each 2.5sqmm conductor is approximately 7.41Ω/km at 20°C, which is sufficiently low to maintain signal integrity even over cable runs of up to 100 meters, a common requirement in large industrial tanks and reservoirs.
The insulation resistance between the two conductors is another critical specification, with a minimum value of 1000MΩ at 500V DC. This high insulation resistance prevents leakage current between the conductors, ensuring that the electrode only responds to contact with conductive liquids and not to moisture or contaminants on the insulation surface. The dielectric strength of the insulation layer is ≥20kV/mm, providing protection against voltage spikes and ensuring safe operation in electrical environments where transient voltages may occur.
The electrode operates within a wide temperature range, from -20°C to 105°C when equipped with XLPE insulation, making it suitable for use in both cold storage facilities and high-temperature industrial processes. For applications involving extreme temperatures, such as food processing plants with steam cleaning or chemical reactors with heated liquids, versions with PTFE insulation can withstand temperatures up to 260°C, expanding the electrode’s versatility.
The multi-
Stranded Copper Conductors are the heart of the level control electrode, and their material composition is carefully selected to balance conductivity, flexibility, and durability. The high-purity electrolytic copper used undergoes a rigorous refining process to remove impurities, which can reduce conductivity and increase resistance. This purity level ensures that the conductors maintain excellent electrical performance even after prolonged exposure to liquids and environmental factors.
To enhance corrosion resistance, the
Copper Conductors are often tinned with a thin layer of tin (thickness 0.005-0.01mm). This tin plating acts as a barrier against oxidation, preventing the formation of copper oxide on the surface of the conductors, which can degrade conductivity over time. The tin plating also provides additional protection against chemical attack, making the electrode suitable for use in environments with acidic or alkaline liquids, such as wastewater treatment plants or chemical processing facilities.
The insulation layer surrounding each conductor is a critical component, providing electrical isolation between the two conductors and protecting them from physical damage and chemical exposure. The choice of insulation material depends on the application environment:
PVC (Polyvinyl Chloride): Commonly used for general-purpose applications, PVC Insulation offers good Chemical Resistance to water, oils, and mild chemicals. It has a temperature rating of -15°C to 70°C, making it suitable for indoor water tanks, residential plumbing systems, and non-aggressive industrial environments.
XLPE (Cross-linked Polyethylene): For more demanding applications, XLPE insulation is preferred due to its superior thermal stability and chemical resistance. It can withstand temperatures from -20°C to 105°C and is resistant to a wider range of chemicals, including acids and alkalis. XLPE is also more resistant to abrasion and mechanical damage, making it ideal for industrial tanks with agitators or other moving parts that could potentially damage the insulation.
PTFE (Polytetrafluoroethylene): For extreme environments, PTFE insulation provides exceptional performance, with a temperature range of -200°C to 260°C. It is highly resistant to almost all chemicals, including strong acids, bases, and solvents, making it suitable for use in pharmaceutical production, chemical processing, and other industries where aggressive substances are present.
In addition to the primary insulation, the electrode may feature an outer sheath or jacket, typically made of the same material as the insulation, to provide additional protection and improve handling. This outer layer helps to prevent damage during installation and reduces the risk of insulation breakdown due to mechanical stress.
3. Structural Design and Construction
The structural design of the Level Control Electrode is optimized for both performance and ease of installation. The two 2.5sqmm multi-stranded copper conductors are twisted together in a helical pattern, with a lay length (the distance over which one conductor completes a full twist around the other) of 10-15 times the outer diameter of the conductors. This twisted design helps to reduce electromagnetic interference (EMI) and ensures that the conductors remain in close proximity, which is essential for accurate level detection.
The insulation layer is extruded over each conductor individually, with a thickness of 0.6-0.8mm for 2.5sqmm conductors, ensuring uniform coverage and consistent electrical performance. The insulation is then tested for eccentricity (the variation in thickness around the conductor) to ensure it is ≤10%, which is critical for maintaining reliable insulation properties.
After insulation, the two conductors are combined and may be wrapped with a binder tape (typically made of polyester) to hold them together and provide additional structural stability. This binder tape also helps to prevent the conductors from moving relative to each other during installation and use, which could otherwise lead to insulation damage or signal interference.
The electrode is available in various lengths, ranging from 1 meter to 20 meters, to accommodate different tank sizes and installation requirements. The ends of the electrode are terminated with a variety of connectors, depending on the application, including ring terminals, spade terminals, or threaded studs for connection to control systems. These terminals are crimped or soldered to the conductors to ensure a secure electrical connection with low resistance.
For applications where the electrode needs to be mounted at a specific depth in a tank, it may be equipped with mounting hardware such as clips, brackets, or flanges. These mounting components are typically made of corrosion-resistant materials like stainless steel or plastic, ensuring compatibility with the liquid being monitored and the tank environment.
4. Special Features and Applications
The Level Control Electrode with 2X2.5sqmm multi-stranded copper wire offers several special features that make it suitable for a wide range of applications:
Flexibility: The multi-Stranded Conductor design provides excellent flexibility, allowing the electrode to be bent, coiled, or routed around obstacles in tight spaces. This is particularly useful in tanks with complex internal structures, such as those with agitators, baffles, or heating elements.
Corrosion Resistance: The tinned copper conductors and chemical-resistant insulation materials ensure that the electrode can withstand exposure to a variety of liquids, including water, wastewater, oils, fuels, acids, and alkalis. This makes it suitable for use in industries such as wastewater treatment, chemical processing, oil and gas, and food and beverage.
High Sensitivity: The low resistance of the copper conductors and the high insulation resistance between them ensure that the electrode is highly sensitive to changes in liquid level. It can detect even small amounts of liquid, making it suitable for applications where precise level control is required, such as in dosing systems or precision manufacturing processes.
Easy Installation: The electrode’s flexibility, various length options, and compatible mounting hardware make installation quick and easy. It can be mounted vertically or horizontally, depending on the tank design, and the terminated ends allow for simple connection to control systems.
Some of the key applications of the Level Control Electrode include:
Wastewater Treatment Plants: Monitoring and controlling the level of sewage, sludge, and chemicals in treatment tanks, ensuring efficient processing and preventing overflow.
Chemical Processing Facilities: Detecting the level of raw materials, intermediates, and finished products in storage tanks and reactors, ensuring safe and efficient production.
Food and Beverage Production: Monitoring the level of liquids such as water, syrup, and juices in storage tanks and processing equipment, maintaining hygiene standards and ensuring consistent product quality.
Water and Utilities: Controlling the level of water in reservoirs, tanks, and pipelines, ensuring a reliable supply and preventing water waste.
Oil and Gas Industry: Monitoring the level of crude oil, refined fuels, and chemicals in storage tanks and pipelines, ensuring safe storage and transportation.
5. Manufacturing Process and Quality Control
The manufacturing process of the Level Control Electrode involves several stages, each subject to strict quality control measures to ensure consistent performance and reliability.
The process begins with the production of the multi-stranded copper conductors. High-purity copper rods are drawn through a series of dies to reduce their diameter to 0.41mm, forming individual copper wires. These wires are then twisted together in a stranding machine to form the 2.5sqmm conductors, with the number of wires and the twist pattern carefully controlled to ensure uniform conductivity and flexibility.
After stranding, the conductors undergo tin plating, where they are immersed in a tin bath or electroplated to apply a thin layer of tin. This process is monitored to ensure the plating thickness is within the specified range, providing effective corrosion protection.
Next, the
Insulated Conductors are produced by extruding the insulation material (PVC, XLPE, or PTFE) over each conductor using an extrusion machine. The extrusion process is carefully controlled to ensure uniform insulation thickness and eccentricity, with inline monitoring systems checking these parameters continuously. For XLPE insulation, the conductors undergo a cross-linking process using heat or radiation to enhance the material’s thermal and mechanical properties.
Once the insulated conductors are produced, they are twisted together, and a binder tape is applied to hold them in place. The electrode is then cut to the required length, and the ends are stripped of insulation to expose the conductors, which are then terminated with the appropriate connectors using crimping or soldering equipment.
Throughout the manufacturing process, rigorous quality control tests are performed, including:
Each electrode is also visually inspected for defects such as insulation cracks, conductor damage, or poor termination, ensuring only high-quality products reach the market.
II. General Product Information
1. Packaging Specifications
The Level Control Electrode with 2X2.5sqmm multi-stranded copper wire is packaged to ensure it arrives at the customer’s location in perfect condition, protected from damage during transportation and storage.
For standard lengths (1-5 meters), the electrode is coiled neatly and wrapped in a protective plastic bag to prevent moisture and dust from accumulating on the surface. The coiled electrode is then placed in a sturdy cardboard box, with foam inserts or dividers used to prevent movement during transportation. Each box is labeled with the product name, specifications (including conductor size and length), part number, and manufacturer information.
For longer lengths (5-20 meters), the electrode is wound onto a plastic or wooden spool, with the ends secured to prevent unwinding. The spool is then wrapped in a moisture-resistant plastic film and placed in a cardboard carton or wooden crate for additional protection. This packaging method is particularly suitable for industrial applications where longer lengths are required, as it makes handling and installation easier.
For international shipments, the packaging is designed to comply with international shipping standards, including ISPM 15 for wooden crates, which requires them to be heat-treated or fumigated to prevent the spread of pests. The outer packaging is also marked with handling instructions, such as "This Side Up" and "Handle With Care," to ensure proper handling during transportation.
2. Transportation and Logistics
The Level Control Electrode is classified as a non-hazardous item for transportation, making it easy to ship via various modes of transport, including road, rail, sea, and air.
For domestic shipments, road transport is the most common method, with delivery times ranging from 1-5 business days depending on the distance from the manufacturing facility. The electrodes are typically transported in trucks, with the packaging secured to prevent movement during transit.
For international shipments, sea freight is often the most cost-effective option, especially for large quantities or longer lengths. Transit times for sea freight vary depending on the destination, ranging from 2-6 weeks. Air freight is available for urgent orders, with delivery times of 3-7 business days, but at a higher cost.
During transportation, it is important to protect the electrodes from extreme temperatures, moisture, and physical damage. The packaging is designed to withstand these conditions, but additional precautions may be taken for sensitive shipments, such as using temperature-controlled containers for electrodes with PTFE insulation, which can be affected by extreme cold.
Upon arrival at the destination, the electrodes should be inspected for any signs of damage during transportation. If damage is found, the customer should contact the manufacturer or supplier immediately to arrange for a replacement.
3. Order Processing and Delivery
The order processing for the Level Control Electrode is designed to be efficient and customer-friendly. Customers can place orders via phone, email, or through the manufacturer’s website, with a dedicated sales team available to assist with any questions or special requirements.
When placing an order, customers need to specify the length of the electrode, the type of insulation material, the type of connectors, and any additional mounting hardware required. The sales team will provide a quote based on these specifications, including pricing, lead times, and delivery options.
Once the order is confirmed, it is processed in the manufacturing facility, with production typically starting within 1-2 business days for standard configurations. Lead times for standard electrodes are usually 3-5 business days, while custom configurations or large quantities may take 7-10 business days.
After production is complete, the electrodes are packaged and shipped according to the customer’s chosen delivery method. Customers are provided with a tracking number once the shipment is dispatched, allowing them to monitor the progress of their order online.
For urgent orders, the manufacturer offers expedited production and shipping options, with lead times reduced to 1-2 business days for standard configurations, subject to availability.
4. Sample Policy
The manufacturer understands that customers may want to test the Level Control Electrode before placing a large order, and therefore offers a sample policy to facilitate this.
Samples of the electrode are available in standard lengths (typically 1 meter) with PVC or XLPE insulation and standard connectors. Customers can request up to 2 samples free of charge, with only the shipping costs payable. For custom samples with specific insulation materials, connectors, or lengths, a nominal fee may apply to cover the cost of production.
Sample requests can be made via phone or email, with the sales team processing the request within 1-2 business days. Samples are shipped via express courier, with delivery times of 2-3 business days for domestic shipments and 5-7 business days for international shipments.
The samples are provided with a certificate of conformity, ensuring they meet the same quality standards as full-production electrodes. Customers are encouraged to test the samples in their specific application environment to evaluate performance, compatibility, and ease of installation.
5. Warranty and After-Sales Support
The Level Control Electrode is backed by a comprehensive warranty to provide customers with peace of mind. The standard warranty period is 12 months from the date of delivery, covering defects in materials and workmanship. If a defect is found during this period, the manufacturer will replace the electrode free of charge, including shipping costs.
To claim the warranty, customers need to provide proof of purchase and a detailed description of the defect, including photographs if possible. The manufacturer’s technical team will assess the claim and determine whether it is covered under the warranty.
In addition to the warranty, the manufacturer offers extensive after-sales support to assist customers with installation, troubleshooting, and maintenance of the electrodes. A dedicated technical support team is available via phone or email to answer any questions, provide installation guidance, and offer solutions to any problems that may arise.
The manufacturer also provides a range of technical documentation, including installation manuals, datasheets, and application notes, which are available for download from the website. These documents provide detailed information on the electrode’s specifications, installation procedures, and maintenance requirements, helping customers to ensure optimal performance and longevity.
For customers with large installations or complex applications, the manufacturer offers on-site support, with technical representatives available to assist with installation, testing, and training. This service is available for a fee, with costs depending on the location and scope of the project.
6. Storage and Handling Guidelines
Proper storage and handling of the Level Control Electrode are essential to ensure its performance and longevity.
The electrodes should be stored in a dry, cool, and well-ventilated area, away from direct sunlight, heat sources, and corrosive substances. They should be kept in their original packaging until ready for installation to protect them from moisture, dust, and physical damage.
When handling the electrodes, care should be taken to avoid bending them excessively or applying excessive force, as this can damage the conductors or insulation. The electrodes should be lifted by the ends or the spool (for longer lengths), not by the middle, to prevent stretching or kinking.
During installation, the electrodes should be handled with clean hands or gloves to avoid contaminating the insulation or conductors with oils, dirt, or other substances. The insulation should not be cut or stripped except at the ends, and any cuts or abrasions should be avoided to prevent electrical leakage.
After installation, the electrodes should be inspected regularly to ensure they are in good condition, with no signs of damage, corrosion, or contamination. Any issues should be addressed promptly to prevent performance degradation or failure.
In conclusion, the Level Control Electrode with 2X2.5sqmm multi-stranded copper wire is a high-quality, reliable component designed for accurate and efficient liquid level control in a wide range of applications. Its technical specifications, high-quality materials.
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