Platinum Thermocouples

Energy/Hydrogen Society Consumer Electronics Sensor Materials Semiconductor Sheets, Wires, and Tubes Inspection/Temperature Measurement Materials Platinum-based Products Electrochemical Electrodes

Widely acclaimed for reliability with established technology

A thermocouple is an electric circuit made by joining two types of metal wires, and is a high-temperature thermometer that uses the phenomenon that a voltage (thermoelectromotive force) is generated when there is a temperature difference between the junction and the base, and can calculate the temperature from the magnitude of the voltage. Platinum-based thermocouples can be used in oxidizing atmospheres of 1,000°C or higher, making them ideal for temperature control in the manufacture of steel, semiconductors, and glass.

Thermocouple type, Composition and Operating Temperature 

Constituent symbols	Composition (+ve, -ve)	Operating temperature
R	PtRh13%, Pt	Regular use limit: 1,400℃, Overheating use limit: 1,600℃
S	PtRh10%, Pt	Regular use limit: 1,400℃, Overheating use limit: 1,600℃
B	PtRh30%, PtRh6%	Regular use limit: 1,500℃, overheating use limit: 1,700℃

*We will process the wire to the desired diameter.

Applications

• Temperature control sensors for steel, electricity, glass, semiconductor manufacturing, chemicals, and other industries

List of Conforming International Standards

We provide highly reliable thermocouples that are manufactured, inspected, and calibrated in accordance with the following international standards.

• ISO-9001:2015
• ISO/IEC-17025-2017
• AMS2750F (Aerospace Material Specification)
• ANSI/NCSL Z540-1-1994
• ASTM E220-19
• ASTM E230/E230M-17
• ITS-90 (International Temperature Scale)
• Special Limits +/-0.25% for Type-B

Our thermometer calibration laboratory is a JCSS-accredited business that complies with the international MRA. “JCSS 0025 Calibration” is the accreditation identifier of our thermometer calibration laboratory.

TEMPLAT

As the negative electrode of pure platinum used in type R thermocouples has the disadvantage of easily fracturing at high temperatures, we have improved the platinum to achieve equal or better creep strength than that of a positive electrode at high temperatures.

This exhibits the same thermoelectromotive characteristics as the negative electrode of pure platinum currently in use, and can therefore be replaced conventional lines.

*The basic wire diameter is φ0.5 and the accuracy is Class 2. For wires less than φ0.5, the maximum length is 3m.
If you require a different wire diameter or Class 1 material, please contact us.