S-type high-temperature resistant thermocouple

NegotiableUpdate on 05/12

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Nature of the Manufacturer: Producers

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Overview

The shortcomings of S-type high-temperature resistant thermocouples are thermoelectric potential, low thermoelectric potential, low sensitivity, decreased mechanical strength at high temperatures, high sensitivity to pollution, expensive precious metal materials, and therefore a large one-time investment. The S-type thermocouple, also known as the single platinum rhodium thermocouple, has an S division mark and is mainly used to measure the temperature of the medium between 0 and 1600 ℃. It is a category of precious metal thermocouples. Normal use in high-temperature environments such as coking plants and steel mills.

Product Details

Platinum rhodium 10 platinum thermocouple (S-type 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 (SP) is platinum rhodium alloy, which contains 10% rhodium and 90% platinum. The negative electrode (SN) is pure platinum, hence it is commonly known as a single platinum rhodium thermocouple. The maximum long-term usage temperature of this thermocouple is 1300 ℃, and the maximum short-term usage temperature is 1600 ℃.

SHigh temperature resistant thermocoupleThe thermocouple series has the advantages of high accuracy, stability, wide temperature measurement range, and long service life. It has good physical and chemical properties, stable thermoelectric potential, and excellent oxidation resistance at high temperatures, making it suitable for both oxidizing and inert atmospheres. Due toSHigh temperature resistant thermocoupleHas excellent comprehensive performance and conforms to the temperature scale for useSHigh temperature resistant thermocoupleFor a long time, it has been used as an interpolation instrument for temperature scales. Although "ITS-90" stipulates that it will no longer be used as an internal inspection instrument for temperature scales in the future, the Temperature Advisory Committee (CCT) believes that S-type thermocouples can still be used to approximate temperature scales.

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

Technical Indicators:

1Temperature measurement range: 0~1600 ℃;
2Temperature measurement accuracy:<± 0.5% t;
3Time constant: ≤ 180s;
4Insulation resistance: 5M Ω (at 20 ℃);
5Specifications and dimensions: 50075010001200 (mm).

Ordering instructions:

1. Indicate the thermocouple model, graduation number, and operating temperature range.

2. Number of thermocouple points, thermocouple protection tube material, diameter, length, etc.

3. For those with fasteners and flange devices, the dimensions need to be provided first.