Thermocouple extension wire is used to extend the thermode, that is, the cold junction of the movable thermocouple, to connect with the indicating instrument to make up a temperature measurement system.
Extension wires fall into two kinds: one is the extension type, and the other is the compensation type. The wire same as the two thermocouple wires of the Graduation Mark, and is known as the extension type. The wire, formed by copper-cupronickel materials with different proportions, is called the compensation type.
The two kinds of extension wire both have good properties of resistance to acid, alkali, abrasion and fire, their temperature range used commonly is -25-+200℃.In addition, it can be used for a long time by immersing into the oil. The extension wire complies with GB/T4989-94-1994standard.
The extension wire listed in the table applies to the graduation symbol of S,(R), K, E, J, and T.
The extension wire types can be divided into SC, KC, KX, EX, JX, and TX in accordance with the product type.
As China Thermocouple compensation wire Manufacturers and Thermocouple compensation wire Factory, Jiangsu Zhaolong Electrics Co., Ltd. is a regional high-tech enterprise and a production base of temperature sensors and temperature control instruments. We have jointly developed and produced a series of thermocouples (thermal resistances) and temperature control electronics with numerous R&D institutions and academies in Shanghai. These products are salable throughout the country and the world, offering an advantage in cost performance. Our products have a renowned reputation in the market and win customers' trust due to their excellent performance, attractive appearance, high reliability, advanced technology, and good cost performance.
With strong technical development team and patent results, we can undertake business for normal and special specifications, and can design & install various large-scale and small-scale automatic temperature control boxes and temperature control rooms and remote monitoring temperature control systems for customers.
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READ MORETemperature measurement systems are widely used in industrial environments, including manufacturing plants, chemical processing, power generation, and HVAC systems. In these systems, thermocouples serve as the primary sensors, providing accurate temperature readings that are essential for safe and efficient operation. However, the performance of a thermocouple depends not only on the sensor itself but also on the compensation wires that connect it to monitoring or control devices. High-quality compensation wires help ensure accurate signal transmission, reduce signal loss, and maintain stable measurement over long distances.
Drawing on extensive experience in temperature measurement and control technology, Jiangsu Zhaolong Electrics Co., Ltd. offers a full range of thermocouple compensation wires. As a regional high-tech enterprise and a production base for temperature sensors and temperature control instruments, the company has collaborated with multiple research institutions and academic organizations in Shanghai to jointly develop and manufacture thermocouples, thermal resistances, and temperature control electronic devices. These products are supplied both domestically and internationally, and they are recognized for practical design, reliable performance, and cost efficiency.
By combining sensor expertise with high-quality accessories, Jiangsu Zhaolong Electrics ensures that its thermocouple compensation wires support precise and stable temperature measurement in a wide range of industrial applications.
The performance of compensation wires depends largely on the materials used. High-quality materials ensure minimal signal loss and accurate temperature readings, even over long distances.
Key features include:
Wires are manufactured with carefully selected alloys that match the thermocouple type. This ensures that the voltage generated by the thermocouple is accurately transmitted to the monitoring system.
Compensation wires are insulated with materials resistant to heat, moisture, and chemical exposure. This prevents signal degradation and allows the wire to perform reliably in harsh industrial environments.
Standardized color coding simplifies installation and maintenance, helping technicians identify and connect wires correctly without errors.
Industrial environments often involve temperature fluctuations, vibration, or exposure to dust and moisture. Durable compensation wires are designed to maintain performance under these conditions.
Advantages of durable design:
Wires are reinforced to resist bending, twisting, or accidental impact during installation or operation.
High-quality conductors and insulation help maintain consistent signal transmission, even when the wires are routed through long cable runs.
Wires are designed to integrate seamlessly with thermocouples, junction boxes, and monitoring systems, ensuring reliable connections throughout the installation.
Thermocouple compensation wires are essential wherever thermocouples are used. They bridge the gap between the sensor and the control or monitoring system while maintaining measurement integrity.
Typical applications include:
Compensation wires transmit temperature signals from sensors installed in pipelines, tanks, or reactors to control systems, allowing operators to monitor and adjust processes accurately.
In heating, ventilation, and energy management systems, compensation wires help maintain accurate temperature readings for system optimization and energy efficiency.
Wires ensure that temperature data from sensors reaches recording or control equipment reliably, supporting precise experiments and quality control processes.
Jiangsu Zhaolong Electrics Co., Ltd. not only provides high-quality thermocouple compensation wires but also ensures customers have full support for installation, maintenance, and long-term operation.
Company advantages include:
| Service Feature | Explanation |
| 12-Month Warranty | Provides coverage for any non-human damage to products, giving customers confidence in the reliability of their compensation wires. |
| Professional Calibration Service | For thermocouples and related devices that require regular calibration, the company offers specialized services to ensure accurate measurements and optimal equipment performance. |
| Spare Parts Availability | Adequate stock ensures that replacement wires or components are readily available when needed, minimizing downtime and ensuring continuous system operation. |
| Technical Expertise and Patents | With a strong R&D team and multiple patented technologies, the company can provide solutions for standard and custom specifications, as well as design and install small to large-scale automatic temperature control systems. |