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

Product Specification

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

NiCr-CuNi Type E Constantan Thermocouple Extension Wire is known for its high sensitivity and accuracy, particularly in moderate temperature ranges.The positive leg (EP) is made of Ni: Cr ≈ 90:10, while the negative leg (EN) is composed of Cu: Ni ≈ 55%: 45% .Type E thermocouples have a working temperature range of -200°C to 900°C for short-term use and 0°C to 750°C for long-term use. Type E thermocouples have the largest EMF output and highest sensitivity among common types, making them ideal for measuring small temperature changes.They exhibit good stability up to 300°C and possess anti-corrosion properties in humid atmospheres .Atmospheric Conditions: Recommended for use in oxidizing or inert atmospheres, but not suitable for reducing atmospheres or those containing sulfur gases.The positive leg (EP) has a density of 8.5 g/cm³, a melting point of 1427°C, a tensile strength of ≥490 Mpa, and a resistivity of 0.71 μΩ·m. The negative leg (EN) has a density of 8.5 g/cm³, a melting point of 1220°C, a tensile strength of ≥390 Mpa, and a resistivity of 0.50 μΩ·m.Type E thermocouples are used in heating systems like gas burners for ovens, cooling systems such as freezers, engine protection for monitoring temperatures and surface temperatures, and high-temperature control in iron casting . They are also used in scientific laboratories and precision instrumentation due to their high sensitivity and accuracy.This summary encapsulates the essential characteristics and applications of NiCr-CuNi Type E Constantan Thermocouple Extension Wire, highlighting its suitability for a range of industrial and scientific temperature measurement needs.

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:

• Chemical Composition: The positive leg (EP) is made of Ni: Cr ≈ 90:10, and the negative leg (EN) is composed of Cu: Ni ≈ 55%: 45%.
• Temperature Range: Type E thermocouples operate in a temperature range of -200°C to 900°C for short-term use and 0°C to 750°C for long-term use.
• EMF Output and Sensitivity: Type E thermocouples have the largest EMF output and highest sensitivity among common types, making them ideal for measuring small temperature changes.
• Stability and Corrosion Resistance: They exhibit good stability up to 300°C and possess anti-corrosion properties in humid atmospheres.
• Atmospheric Conditions: Recommended for use in oxidizing or inert atmospheres, but not suitable for reducing atmospheres or those containing sulfur gases.
• Physical Properties: The positive leg (EP) has a density of 8.5 g/cm³, a melting point of 1427°C, a tensile strength of ≥490 Mpa, and a resistivity of 0.71 μΩ·m. The negative leg (EN) has a density of 8.5 g/cm³, a melting point of 1220°C, a tensile strength of ≥390 Mpa, and a resistivity of 0.50 μΩ·m.
• Applications: Type E thermocouples are used in heating systems like gas burners for ovens, cooling systems such as freezers, engine protection for monitoring temperatures and surface temperatures, and high-temperature control in iron casting.
• Construction: The wire construction includes two cores stranded together, with a sheath material of Besilen® EM9 and braided with fiber-glass with a tracer. The conductor cross-section is 0.22 mm², and the outer diameter is approximately 3.4 mm.
• Technical Data: The minimum bending radius is 7.5 times the diameter, and the temperature range of insulation is fixed laying from -40°C to +180°C, flexible application from -25°C to +180°C, and short-term use up to +250°C. The cable is halogen-free, flame retardant, self-extinguishing, and complies with the RoHS directive of the European Union.

Applications:

• Heating Systems: Gas burners for ovens, where Type E thermocouples are used to measure and control high temperatures.
• Cooling Systems: Freezers, where they are used for temperature monitoring and control.
• Engine Protection: Monitoring temperatures and surface temperatures to ensure engine safety and performance.
• High-Temperature Control: Iron casting processes, where Type E thermocouples are used for precise temperature control.
• Scientific Laboratories: Due to their high sensitivity and accuracy, Type E thermocouples are often used in scientific labs for precision temperature measurement.
• Precision Instrumentation: They are ideal for low-temperature applications such as cryogenics where small temperature changes need to be detected accurately.

These applications highlight the versatility of Type E thermocouples in both high-temperature industrial processes and precise scientific measurements.