Description
Overviews
Wrn-001, an industrial assembled thermocouple, is used as a temperature sensor. It is usually used with display instrument, recording instrument and electronic regulator. It can directly measure the surface temperature of the positive solid of liquid, steam and gas medium in various production processes from 0 ℃ to 1800 ℃.
Specification
Product application
Temperature measurement range and allowable error
|
Thermocouple category |
Code name |
Dividing number |
Measuring range ℃ |
Allowable deviation t ℃ |
|
Platinum and rhodium30-Platinum and Rhodium6 |
WRR |
B |
0~1800 |
±1.5 ℃ or ±0.25% |
|
Platinum rhodium 10-platinum |
WRP |
S |
0 ~1600 |
±1.5 ℃ or ±0.25% |
|
Nickel-chromium-nickel-silicon |
WRN |
K |
0 ~ 1300 |
±2.5 ℃ or ±0.75% |
|
Nickel chromium copper nickel |
WRE |
E |
0 ~ 800 |
±2.5 ℃ or ±0.75% |
|
Couple category |
Product model |
Dividing number |
Temperature range ℃ |
Specifications |
Notes |
|
Chief length mm |
|||||
|
Nickel-chromium-nickel-silicon |
WRN-001 |
K |
0 ~800 |
User customization |
The negative electrode above six points is used as the common pole, which is dendritic, and I refers to the length from the cold end of the oil to the temperature measuring point. |
|
Nickel chromium copper nickel |
WRE-001 |
E |
0~600 |
||
|
Nickel-chromium-nickel-silicon |
WRN-002 |
K |
0 ~ 800 |
< 10000 |
Three pairs, each pair does not interfere with each other. L is the length from the cold end to the steady point |
|
Nickel chromium copper nickel |
WRE-002 |
E |
0~600 |
Working principle of thermocouple
Two stages of conductors with different components are welded to form a loop. The direct temperature measuring end is called the measuring end, and the terminal terminal is called the reference terminal. When there is a temperature difference between the measuring end and the reference end, the thermal current will be generated in the loop, which will be connected to the display instrument, and the corresponding temperature value of the thermoelectric force produced by the thermocouple will be indicated on the instrument.
The thermoelectric force of the thermocouple will increase with the increase of the temperature at the measuring end. The thermoelectric force is only related to the material of the armored thermocouple conductor and the temperature difference at both ends, and has nothing to do with the length and diameter of the thermal electrode.
