NiCr CuNi Type E Extension Thermocouple Extension Wire Essential for Temperature Measurement in Various Environments

NiCr-CuNi Type E Extension Thermocouple Extension Wire Essential for Temperature Measurement in Various Environments

Type E thermocouples consist of a positive leg made from Nickel-Chromium (NiCr) alloy and a negative leg made from Copper-Nickel (CuNi) alloy, also known as Constantan.They 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 recognized for their high sensitivity to temperature changes, making them suitable for applications requiring precise temperature measurements.They produce a significant thermoelectric voltage, which is beneficial for measuring temperature differences in various industrial processes. 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 excellent electrical conductivity.The stranded construction of Type E wires provides flexibility and resistance to mechanical stress, which is essential in dynamic industrial environments. The positive NiCr wire is typically green or red, and the negative CuNi wire is yellow, facilitating easy identification during installation. Type E thermocouples find use in various industries, including metal processing, glass manufacturing, food processing, and scientific research, where accurate temperature control and measurement are critical. Manufactured to comply with international standards such as IEC 60584-1, ensuring reliability and consistency in performance.

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:

• Material Composition:

Positive Wire (NiCr): Made from Nickel-Chromium alloy, which provides good resistance to oxidation and high-temperature stability.

Negative Wire (CuNi): Known as Constantan, it is a Copper-Nickel alloy that offers excellent thermal and electrical conductivity.

• Wide Temperature Range:

Capable of operating from -200°C to 900°C for short-term measurements and 0°C to 750°C for long-term use, making them suitable for a variety of high-temperature applications.

• High Sensitivity and EMF Output:

Type E thermocouples have a high sensitivity to temperature changes and produce a significant thermoelectric voltage, which is beneficial for precise temperature measurements.

• Atmospheric Compatibility:

Designed for use in oxidizing and inert atmospheres, they are not recommended for reducing atmospheres or environments with sulfurous gases.

• Physical and Mechanical Properties:

The NiCr alloy has a high melting point and good mechanical strength, while Constantan provides good electrical conductivity and resistance to corrosion.

• Durability and Flexibility:

The stranded construction of the wire increases flexibility and durability, making it suitable for applications where the wire may be subject to mechanical stress.

• Color Coding:

The positive wire is typically colored green or red, and the negative wire is yellow, which aids in quick and easy identification during installation and maintenance.

• Applications:

Commonly used in industrial furnaces, kilns, glass manufacturing, food processing, and scientific research where accurate temperature control and measurement are essential.

• Standard Compliance:

Manufactured to comply with international standards such as IEC 60584-1, ensuring reliability and consistency in performance across different applications.

• Compensation and Extension:

While Type E does not have a specific compensating wire, extension wires can be used to extend the length of the thermocouple without affecting its performance, allowing for greater flexibility in installation.

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.
• Cryogenic Applications: Due to their high sensitivity, Type E thermocouples are often used in cryogenic applications where small temperature changes need to be detected accurately.
• Aerospace Industry: They are used in the aerospace industry where fast response is required, and they are non-magnetic in nature, which is beneficial in environments with magnetic fields.
• Gas Temperature Measurement: Type E thermocouples are used for gas temperature measurement in flow chambers.
• Scientific Laboratories and Precision Instrumentation: Due to their high sensitivity and accuracy, Type E thermocouples are often used in scientific laboratories and precision instrumentation for detecting small temperature changes.

These applications highlight the versatility and importance of Type E thermocouples in a range of industrial and scientific settings where accurate temperature measurement is essential.