NiCr-CuNi Type E Constantan Thermocouple Extension Wire for Precise Temperature Measurements

NiCr-CuNi Type E Constantan Thermocouple Extension Wire is a type of thermocouple wire used for temperature measurement in various industrial and scientific applications. The positive leg (NiCr) is made of nickel-chromium alloy, which provides stability and resistance to high temperatures.The negative leg (CuNi), also known as Constantan, is a copper-nickel alloy that complements the NiCr alloy.Type E thermocouples are designed to operate within a broad temperature range, from -200°C to 900°C for short-term measurements and 0°C to 750°C for continuous use.Type E thermocouples are known for their high sensitivity and accuracy, making them suitable for detecting small temperature changes.They produce a relatively high thermoelectric voltage (EMF), which is beneficial for applications requiring high precision.Type E thermocouples are suitable for use in oxidizing and inert atmospheres but should not be used in reducing atmospheres or environments containing sulfurous gases.The NiCr alloy has a high melting point and good mechanical strength, while the CuNi alloy offers good electrical conductivity.The wires are stranded to provide flexibility and are often protected by a sheath material for added durability.Type E thermocouples are used in a variety of applications, including industrial furnaces, kilns, cryogenics, and precision scientific measurements.Manufactured to comply with international standards such as IEC 60584-1, ensuring reliability and consistency.While Type E thermocouples do not have a specific compensating wire defined in the DIN EN 60584-3 standard, extension wires can be used to extend the range of the thermocouple without affecting its performance.

In summary, NiCr-CuNi Type E Constantan Thermocouple Extension Wire is a robust and sensitive tool for temperature measurement, particularly in environments with moderate to high temperatures.

Color codes of thermocouple ( E type )

Type E thermocouple has the largest EMF output and highest sensitivity, so it is ideal for measuring small temperature change. It also has good stability in the low temperature range up to 300 ℃ , and good property of anti-corrosion in humidity atmosphere. It is recommended for oxidizing or inert atmospheres, but cannot be used directly in reducing atmosphere and atmosphere with sulphur gases.

Thermocouple temperature range and tolerance

Compensating wire reciprocating resistance

Key Features of NiCr-CuNi (Type E) Constantan Thermocouple Compensating&Extension Wire include:

• Temperature Range: Type E thermocouples are designed to operate over a wide temperature range, from -200°C to 900°C for short-term applications and 0°C to 750°C for long-term use.
• High Sensitivity: Type E thermocouples are known for their high sensitivity, which allows for precise measurement of small temperature changes.
• EMF Output: They have a relatively high thermoelectric voltage output compared to other types, which can be beneficial in certain measurement applications.
• Oxidation Resistance: Le materials used in Type E thermocouples exhibit good resistance to oxidation, which is important for maintaining accuracy over time.
• Atmospheric Compatibility: These thermocouples are suitable for use in oxidizing and inert atmospheres but should not be used in reducing atmospheres or environments with sulfurous gases.
• Physical Properties: The positive leg (NiCr) has a high melting point and good mechanical strength, while the negative leg (CuNi, or Constantan) offers good electrical conductivity.
• Durability: Type E wires are durable and can withstand the wear and tear of industrial environments.
• Color Coding: Typically, the positive wire (NiCr) is colored green or red, and the negative wire (CuNi) is colored yellow.
• Construction: The wires are stranded to provide flexibility and are often protected by a sheath material for added durability.
• Applications: Due to their properties, Type E thermocouples are used in a variety of applications, including industrial furnaces, kilns, cryogenics, and precision scientific measurements.
• Standard Compliance: They are manufactured to comply with international standards such as IEC 60584-1, ensuring reliability and consistency.
• Compensation: While Type E thermocouples do not have a specific compensating wire defined in the DIN EN 60584-3 standard, extension wires can be used to extend the range of the thermocouple without affecting its performance.

These features make Type E thermocouples a popular choice for applications requiring high-temperature measurement and precision.

Applications:

• Heating Systems: Type E thermocouples are used in gas burners for ovens to measure and control high temperatures accurately.
• Cooling Systems: They are utilized in freezers for temperature monitoring and control within refrigeration systems.
• Engine Protection: Type E thermocouples are employed for engine protection by monitoring temperatures and surface temperatures to prevent overheating.
• High-Temperature Control: In iron casting processes, Type E thermocouples are used for high-temperature control to ensure the quality of the castings.
• Scientific Laboratories: Due to their high sensitivity and accuracy, Type E thermocouples are often used in scientific laboratories and precision instrumentation for detecting small temperature changes.
• Cryogenics: They are ideal for low-temperature applications such as cryogenics where precise temperature measurement is crucial.

These applications highlight the versatility of Type E thermocouples in both high and low-temperature environments, making them a valuable tool in various industrial and scientific settings.