Type K ThermocoupleExtension Wire for Industrial Temperature Measurement in Various Applications

NiCr-NiSi (Type K) thermocouple compensating and extension wire is designed for high-precision temperature measurement in a broad range of industrial and scientific applications. The wire consists of a Nickel-Chromium (NiCr) positive leg and a Nickel-Silicon (NiSi) negative leg, which together generate a stable thermoelectric voltage in response to temperature changes.

Widely used in industries such as automotive, food processing, pharmaceuticals, chemical processing, and general industrial settings.

Extension Wires Extend the distance between the thermocouple and measurement device without significant signal degradation.

Compensating Wires Maintain accurate temperature measurement over long distances by compensating for ambient temperature effects.

In summary, NiCr-NiSi (Type K) compensating and extension wire is an excellent choice for precise and reliable temperature measurement over a wide temperature range, offering durability, flexibility, and cost-effectiveness.

Color codes of thermocouple wire (K type)

Positive wire is yellow, negative wire is red.

Thermocouple temperature range and tolerance

Compensating Wire Reciprocating Resistance

Key Features of NiCr-NiSi (Type K) Thermocouple Compensating and Extension Wire

• Material Composition:

Positive Leg: NiCr (Nickel-Chromium) alloy for the positive leg.

Negative Leg: NiSi (Nickel-Silicon) alloy for the negative leg.

These materials are specifically selected for their ability to generate a stable and predictable voltage difference in response to temperature variations.

• Temperature Range:

Measuring Range: Typically from -200°C to 1372°C (-328°F to 2502°F), making it suitable for a wide range of high-temperature applications.

Extension/Compensating Wire Range: Generally works within the same range but may have slightly reduced tolerance at the extremes of the temperature scale.

• High Stability and Accuracy:

Type K thermocouples provide reliable and repeatable readings, making them one of the most widely used thermocouples for general temperature measurement applications.

The thermoelectric voltage generated by NiCr and NiSi is consistent over a wide temperature range, ensuring stable measurement.

• Compatibility with Other Equipment:

Extension Wires: Used to extend the signal from the thermocouple to the measurement device without introducing significant error. Extension wires are designed to mimic the thermocouple’s electrical properties (voltage response).

Compensating Wires: These wires are used to maintain the voltage and accuracy of the signal over long distances, minimizing the effects of ambient temperature and electrical interference.

• Corrosion Resistance:

NiCr (Nickel-Chromium) alloy used in the positive leg offers good oxidation resistance and is durable in high-temperature environments.

NiSi (Nickel-Silicon) alloy used in the negative leg offers better performance in harsh environments where contamination or oxidation is a concern.

• Flexibility and Durability:

Available in flexible cables that can withstand mechanical stresses, making them suitable for dynamic or moving parts in industrial environments.

Resistant to moisture, making them durable in environments where there may be exposure to humidity or varying environmental conditions.

• Ease of Integration:

The wire is compatible with a wide range of industrial instrumentation and temperature controllers, making it easy to integrate into existing systems.

Often available in pre-configured lengths and with various insulation types (PVC, fiberglass, etc.) depending on the application.

• Cost-Effectiveness:

Type K thermocouples, including the compensating and extension wires, are relatively low-cost compared to other thermocouple types (such as Type B, Type R, or Type S), making them a popular choice in many industries.

• Temperature Coefficient:

The thermoelectric voltage generated by Type K thermocouples is highly sensitive to temperature, providing a wide and linear temperature response, which ensures accuracy over a broad measurement range.

• Electrical Insulation:

Insulation materials (such as PVC, Teflon, fiberglass) are used to protect the wire from environmental factors like heat, moisture, and mechanical wear while maintaining the wire’s electrical integrity

Applications:

• General Industrial Use: Used in furnaces, ovens, and kilns.
• Chemical and Pharmaceutical: Monitoring reactors, dryers, and distillation columns.
• Automotive: In engine temperature measurement.
• Food Processing: For temperature control during cooking or pasteurization.

Company Overview:

Jiangyin Chengxin Alloy Material Co., Ltd has more than 20 years of experience as the lead.ing alloy wire manufacturer in China. We offer a wide range of services from fine wire drawing toresistance wire manufacturing. Since the beginning, our specialty has been the quality and preci.sion of our products. We have the tightest tolerances and deliver within a few days to a fewweeks. As a result, we have become the leading alloy wire supplier in the industry.

Senphus Subsidiaries:

• Jiangyin Chengxin Alloy Material Co., Ltd.
• Jiangyin Senphus Electrical Materials Co., Ltd.
• Jiangsu Xiangcheng Supply Chain Management Co., Ltd.

Jiangyin Chengxin Alloy Material Co., Ltd.: With nearly 20 years of experience, Jiangyin Chengxin is a leading alloy wire manufacturer in China. We offer a wide range of services, from fine wire drawing to resistance wire manufacturing. Our specialty lies in the quality and precision of our products, achieving the tightest tolerances and delivering orders within days to weeks. As a result, we have established ourselves as the premier supplier of alloy wire in the industry.

Our product range includes:

• Copper-nickel alloys (CuNi1-CuNi44)
• Karma (Nikrothal L/Evanohm/Alloy 800)
• Manganin and Constantan
• Nickel-chromium alloys
• Thermocouple alloys (Type K, N, E, T, J)
• Thermocouple extension wire
• PTC thermistor resistance alloy
• Pure nickel wire and Monel alloy

These alloys are available in various forms, including wire, ribbon, stranded, and enamelled. Major applications include seat heating, underfloor heating, military projects, aerospace, household appliances, heating wire, mechanical and electrical plants, and temperature instruments. Our manufacturing processes are ISO 9001:2015 certified, and we specialize in fine and ultra-fine wire drawing, offering wire diameters from 0.025 mm (0.001") to 13 mm (0.51") in small batches, medium volumes, and mass production. We maintain a comprehensive quality inspection system, including in-house chemical analysis, chromatographic analysis, metallurgical analysis, pinhole tests, wire construction tests, and tension tests to ensure the highest quality standards.

Senphus Electrical Material Co., Ltd.: Founded in 2003, Senphus Electrical Material Co., Ltd. integrates research, manufacturing, and sales of electric heating alloys, heating cables, heating wires, and heating products. Leveraging over a decade of technical expertise in heating alloy wire, we have adopted advanced heating cable technology and machinery, successfully developing heating cables, temperature controllers, and temperature control systems suitable for building heating, pipe insulation, outdoor snow melting, wind power blade production, car seat heating, and healthcare applications.

The company is recognized as a high-tech enterprise in Jiangsu Province and a small giant enterprise in Jiangyin City, specializing in innovative technologies. We operate the "Wuxi Heating Cable Engineering Technology Research Center" and collaborate with experts from renowned domestic universities. Our portfolio includes 5 invention patents and over 30 utility model patents, showcasing our strong research and development capabilities.

With an annual output exceeding 1,000 tons of thermal alloy wire and an output value of approximately 105 million yuan, our products are well-received in markets such as the UK, Italy, Canada, Peru, and Spain. Our heating cables generate an annual output value of over 80 million yuan, with exports to Germany, Japan, the United States, Malaysia, Denmark, Brazil, and other countries.

The company has successfully passed multiple quality management system certifications, including IATF 16949, ISO 9001, ISO 14001 (Environmental Management System), and ISO 45001 (Occupational Health and Safety Management System). Our heating cables and related products have also obtained test reports from the Shanghai Cable Research Institute Test Center and received certifications such as UL (United States), VDE (Germany), CE (European Union), and RoHS.

Commitment to Quality: We adhere to the business commitment of "Reputation First, Quality First, Customer First" and uphold the quality policy of "Integrity-Based, Quality-Oriented, Excellent Service." We are dedicated to providing accurate products and professional services, and we look forward to collaborating sincerely with you to achieve mutual success.