The performance advantages of platinum-rhodium thermocouple

Platinum rhodium thermocouple as the temperature measurement sensor, usually with temperature transmitter, controller and display instrument, such as process control system, to directly measure or control in the production of a variety of 0 Fluid over a range of 1800 ℃, steam and gas medium and solid surface temperature.

the working principle of platinum-rhodium thermocouple is platinum rhodium thermocouple is composed of two different components of conductor two ends when the synthesis loop, when the two junction temperature is not at the same time, will produce thermal current in the circuit. If the work end of the thermocouple with the reference when there is a difference in temperature, display instrument will be installed by the thermocouple thermoelectric potential of the corresponding temperature value.

to measure the temperature of the normal during 1000 ~ 1300 ℃ suggest using single platinum-rhodium thermocouple ( Platinum rhodium - 10 Platinum) , measuring the temperature of the normal during 1200 ~ 1600 ℃ suggest using double platinum rhodium thermocouple ( Platinum rhodium - 30 Platinum rhodium (6) So are using temperature range can ensure the service life of platinum-rhodium thermocouple.

platinum-rhodium thermocouple in thermocouple series, with the high accuracy * and * good stability, test your area wide, long service life, high temperature limit, etc. Suitable for oxidation and inert atmosphere, can also be short term used in vacuum, but does not apply to reducing atmosphere or containing metal or nonmetal steam atmosphere. B type thermocouple is an obvious advantage don't need a compensation for the compensation conductor, because in the range of 0 ~ 50 ℃ and internal potential less than 3 mu V.

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