● Standard JB / T 9497-1999
● Applicable conditions: vacuum, hydrogen, inert atmosphere, and temperature range of 0 ~ 2300 ℃.
● Uneven thermal emf : The entire volume (disk) wire positive or negative at 1200 ℃, uneven thermo-emf not exceed 80μV.
●Wire diameter and tolerance
Diameter |
0.5 |
0.3 |
0.1 |
Tolerance |
±0.03 |
±0.02 |
±0.02 |
● Thermal properties and tolerance
The dual wire thermocouple reference side temperature at 0℃，temperature and thermo-emf tolerance.
Thermocouple Type |
Temperature range ℃ |
Tolerance |
WRe3-WRe25 |
0~400 |
4.0℃ |
400~2300 |
±1%t |
|
WRe5-WRe26 |
0~400 |
4.0℃ |
400~2300 |
±1%t |
|
Note: t is the measured temperature |
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