The Type B thermocouple is suited for use at up to 1800 °C. These are used in extremely high temperature applications, and widely used in high temperature furnace with MoSi2 heating elements. Specialty of B Type thermocouple is that it has the highest temperature limit in all the other type of thermocouple. This thermocouple is producing the same output at 0°C and 42°C, limiting their use below about 50°C. The emf function has a minimum around 21°C, meaning that cold-junction compensation is easily performed, since the compensation voltage is essentially a constant for a reference at typical room temperatures.
Type B Thermocouple is composed of a positive leg which is 70% Platinum, 30% Rhodium and a negative leg which is 94% platinum, 6% Rhodium. When protected by compacted mineral insulation and appropriate outer sheath, Type B is usable from 600 to 1800°C for chamber furnace.
Why to prefer Type B Thermocouple
- Maintains a high level of accuracy and stability at very high temperatures.
- Highest temperature limit of all of the thermocouples.
- Stable voltage-generating equipment that possesses the quality of resisting high temperature oxidation.
- Wide measuring range
- High mechanical strength.
- Good pressure-resistant performance.
Temperature Range of Type B Thermocouple:
Thermocouple grade wire, 0 to 1800 °C
Extension wire, 0 to 100 °C
Accuracy (whichever is greater):
Standard: +/- 0.5%
Special Limits of Error: +/- 0.25%
The Type B thermocouple is suited for use at up to 1800 °C. These are used in extremely high temperature applications, and widely used in high temperature furnace with MoSi2 heating elements. Specialty of B Type thermocouple is that it has the highest temperature limit in all the other type of thermocouple. This thermocouple is producing the same output at 0°C and 42°C, limiting their use below about 50°C. The emf function has a minimum around 21°C, meaning that cold-junction compensation is easily performed, since the compensation voltage is essentially a constant for a reference at typical room temperatures.
Type B Thermocouple is composed of a positive leg which is 70% Platinum, 30% Rhodium and a negative leg which is 94% platinum, 6% Rhodium. When protected by compacted mineral insulation and appropriate outer sheath, Type B is usable from 600 to 1800°C for chamber furnace.
Why to prefer Type B Thermocouple
- Maintains a high level of accuracy and stability at very high temperatures.
- Highest temperature limit of all of the thermocouples.
- Stable voltage-generating equipment that possesses the quality of resisting high temperature oxidation.
- Wide measuring range
- High mechanical strength.
- Good pressure-resistant performance.
Temperature Range of Type B Thermocouple:
Thermocouple grade wire, 0 to 1800 °C
Extension wire, 0 to 100 °C
Accuracy (whichever is greater):
Standard: +/- 0.5%
Special Limits of Error: +/- 0.25%
