Products Description

E-type thermocouple bare wire is an important sensor element commonly used for temperature measurement. It is composed of two metal wires of different materials (usually nickel chromium/copper nickel), and temperature changes are measured by the thermoelectric potential difference generated by these two metals at different temperatures. E-type thermocouple bare wire has excellent linear characteristics and stability, suitable for a wide temperature range, usually reaching hundreds of degrees Celsius or even higher. Due to its high sensitivity, fast response speed, and moderate cost, the bare wire of E-type thermocouples has been widely used in industrial control, laboratory research, and household appliances.

Parameter

Nickel chromium copper nickel thermocouple (E-type thermocouple), also known as nickel chromium constantan thermocouple, is a type of inexpensive metal thermocouple,

Its positive electrode (EP) is made of nickel chromium 10 alloy, Ni: Cr ≈ 90:10, and the negative electrode (EN) is made of copper nickel alloy. The nominal chemical composition is 55% copper, 45% nickel, and a small amount of elements such as cobalt, manganese, and iron.

The operating temperature of this thermocouple is -200~900 ° C.

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Main features:

Wide temperature range: E-type thermocouples can measure temperatures from -200 ° C to+900 ° C.

High thermoelectric potential: E-type thermocouples have a high thermoelectric potential, which makes them more sensitive and responsive during measurement.

Good stability: E-type thermocouples can maintain good stability during long-term use and are suitable for continuous temperature monitoring.

Corrosion resistance: Nickel chromium alloy and nickel silicon alloy have good corrosion resistance, making E-type thermocouples suitable for various environments.

Economy: Compared with thermocouples using precious metals, E-type thermocouples have lower costs and are economical and practical.

Easy to calibrate: The calibration process of E-type thermocouples is relatively simple, making it easy to maintain and calibrate.

Compatibility: E-type thermocouples can be compatible with various types of display and recording devices, making it easy to integrate into different control systems

Application of K-type thermocouple bare wire

Chemical industry: In the chemical production process, E-type thermocouples are used to monitor the temperature in reactors, distillation towers, and heaters.

Metal processing: In the process of metal smelting and processing, E-type thermocouples are used to monitor the temperature of melting furnaces, forging equipment, and heat treatment furnaces.

Food processing: In the process of food processing and packaging, E-type thermocouples are used to monitor the temperature during baking, cooking, and sterilization.

Power industry: In the process of power production and distribution, E-type thermocouples are used to monitor the temperature of boilers, generators, and transformers.

Environmental monitoring: In environmental monitoring and control, E-type thermocouples are used to monitor indoor and outdoor environmental temperatures, greenhouse temperatures, etc.

Medical equipment: In medical equipment, E-type thermocouples are used to monitor and control the working temperature of medical equipment, such as sterilizers and thermostats.

Research experiment: In scientific research and experiments, E-type thermocouples are used to accurately measure temperature changes during the experimental process.

Matters needing attention

E-type thermocouples are not suitable for reducing or redox alternating atmospheres, as these conditions may lead to a decrease in thermocouple performance.

In high-temperature oxidizing atmospheres, the performance of E-type thermocouples is better, but in high-temperature reducing atmospheres, their performance may be affected.

Summary

The bare wire of E-type thermocouple plays an important role in multiple industrial and scientific fields due to its wide temperature measurement range, high sensitivity, stability, and economy. However, when selecting an E-type thermocouple, users need to consider its applicable atmosphere conditions to ensure measurement accuracy and equipment reliability.