1、 Product Overview:

The WRP series S-type thermocouple, also known as a single platinum rhodium thermocouple, has an S division mark and is mainly used to measure the temperature of the medium from 0 to 1600 ℃. It is a category of precious metal thermocouples. Normal use in high-temperature environments such as coking plants and steel mills. The measurement accuracy is highest when the normal long-term use temperature is around 800-1300 ℃, while the temperature measurement accuracy within 800 ℃ is not high. However, the thermocouple is easily damaged when the long-term use temperature is above 1300 ℃. Therefore, choosing the correct scale thermocouple is an important factor in ensuring the accuracy of temperature measurement.

2、 Working principle:

S-type thermocouple is a circuit composed of two conductors with different compositions connected at both ends. When the temperature of the two junction points is different, a thermal current will be generated in the circuit. If there is a temperature difference between the working end and the reference end of the thermocouple, the display instrument will indicate the temperature value corresponding to the thermoelectric potential generated by the thermocouple.

The thermoelectric heating of an S-type thermocouple will increase with the temperature at the measuring end, and its size is only related to the thermocouple material and the temperature at both ends, and is independent of the length and diameter of the thermoelectric electrode. The appearance of various platinum rhodium thermocouples is often very different due to needs, but their basic structures are roughly the same, usually composed of main components such as hot electrodes, insulation sleeves, protective tubes, and junction boxes.

3、 Application scenarios:

The WRP series S-type thermocouple uses high-purity platinum as the negative electrode and platinum rhodium alloy as the positive electrode. It is suitable for high-temperature applications in various production processes and is widely used in powder metallurgy, sintering bright furnaces, vacuum furnaces, smelting furnaces, glass, steelmaking furnaces, ceramic and industrial salt bath furnaces for temperature measurement.

4、 Technical parameters:

The WRP series S-type thermocouple is a traditional temperature measuring element with stable thermoelectric performance and strong oxidation resistance, suitable for continuous use in oxidizing and inert atmospheres. The long-term usage temperature is 1600 ℃, and the short-term usage temperature is 1800 ℃. Its technical indicators are as follows:

1. Temperature measurement range: 0~1800 ℃;

2. Temperature measurement accuracy:<± 0.5% t

3. Time constant: ≤ 180s

4. Insulation resistance: 5M Ω (at 20 ℃);

5. Specifications and dimensions: 50075010001200 (mm).

5、 Model and specifications: