high-temperature thermocouple

High temperature thermocouple, resistant to high temperatures up to 1800 ° C; C, also known as high-temperature precious metal thermocouple, platinum rhodium can be divided into single platinum rhodium (platinum rhodium 10 platinum rhodium) and double platinum rhodium (platinum rhodium 30 platinum rhodium 6). They are used as temperature measurement sensors and are usually used in conjunction with temperature transmitters, regulators, and display instruments to form process control systems. They are used to directly measure or control the temperature of fluids, vapors, gas media, and solid surfaces within the range of 0-1800 ℃ in various production processes.

High temperature thermocouples, also known as high-temperature precious metal thermocouples, can withstand temperatures up to 1800 ° C. Platinum rhodium can be divided into single platinum rhodium (platinum rhodium 10 platinum rhodium) and double platinum rhodium (platinum rhodium 30 platinum rhodium 6). They are used as temperature measurement sensors and are usually used in conjunction with temperature transmitters, regulators, and display instruments to form process control systems. They are used to directly measure or control the temperature of fluids, vapors, gas media, and solid surfaces within the range of 0-1800 ° C in various production processes.

High temperature thermocouple, capable of withstanding temperatures up to 1800 ° C, is a precious metal thermocouple. The diameter of the thermocouple wire is specified as 0.5mm, with an allowable deviation of -0.015mm. The nominal chemical composition of its positive electrode (BP) is platinum rhodium alloy, containing 30% rhodium and 70% platinum. The negative electrode (BN) is platinum rhodium alloy, containing 6% rhodium, hence it is commonly known as a double platinum rhodium thermocouple. The long-term high usage temperature of this thermocouple is 1600 ℃, and the short-term high usage temperature is 1800 ℃.

1. Main technical parameters

Electrical export: M20x1.5, NPT1/2

Accuracy level: I, II

Protection level: IP65

Wire diameter: Φ 0.5

Nominal pressure: atmospheric pressure

(High temperature thermocouple) Platinum rhodium 30- Platinum rhodium 6 thermocouple

Platinum rhodium 30 platinum rhodium 6 thermocouple (high-temperature thermocouple) is a precious metal thermocouple. The diameter of the thermocouple wire is specified as 0.5mm, with an allowable deviation of -0.015mm. The nominal chemical composition of its positive electrode (BP) is platinum rhodium alloy, containing 30% rhodium and 70% platinum. The negative electrode (BN) is platinum rhodium alloy, containing 6% rhodium, hence it is commonly known as a double platinum rhodium thermocouple. The long-term high usage temperature of this thermocouple is 1600 ℃, and the short-term high usage temperature is 1800 ℃.

High temperature thermocouples have the advantages of high accuracy, good stability, wide temperature measurement range, long service life, and high temperature measurement upper limit in the thermocouple series. Suitable for oxidizing and inert atmospheres, and can also be used in vacuum for a short period of time, but not suitable for reducing atmospheres or atmospheres containing metal or non-metal vapors. One obvious advantage of high-temperature thermocouples is that they do not require compensation wires, as the thermoelectric potential is less than 3 μ V within the range of 0-50 ℃.

The shortcomings of high-temperature thermocouples are thermoelectric potential, low thermoelectric potential rate, low sensitivity reading, decreased mechanical strength at high temperatures, high sensitivity to pollution, expensive precious metal materials, and therefore a large one-time investment.