
PVC thermocouple wire K Type Thermocouple wire Compensating extension Cable wire for Industrial production
- Thermocouple Extension Wire
PVC thermocouple wire, K-type thermocouple compensation wire, is an indispensable precision component in the field of industrial temperature measurement. It is made of high-purity alloy material, has excellent thermoelectric performance and stability, can accurately convert temperature signals into electrical signals, and ensure the accuracy and reliability of measurement data. Its PVC outer sheath has good insulation, corrosion resistance and flexibility, can effectively resist the erosion of harsh environments, and is easy to install and wire. Whether it is a high-temperature furnace, chemical pipeline or food processing equipment, K-type thermocouple compensation wire can stably transmit signals and provide strong support for temperature monitoring. It is an ideal choice to ensure production safety and improve production efficiency.
Code | Wires component of the thermocouple |
| +Positive leg | -Negative leg |
N | Ni-cr-si (NP) | Ni-si-magnesium (NN) |
K | Ni-Cr (KP) | Ni-Al(Si) (KN) |
E | Ni-Cr (EP) | Cu-Ni<constantan> (EN) |
J | Iron (JP) | Cu-Ni<constantan> (JN) |
T | Copper (TP) | Cu-Ni<constantan> (TN) |
ASTM | ANSI | IEC | DIN | BS | NF | JIS | GOST |
(American Society for Testing and Materials) E 230 | (American National Standard Institute) MC 96.1 | (European Standard by the International Electrotechnical Commission 584)-1/2/3 | (Deutsche Industrie Normen) EN 60584 -1/2 | (British Standards) 4937.1041, EN 60584 - 1/2 | (Norme Française) EN 60584 -1/2 - NFC 42323 - NFC 42324 | (Japanese Industrial Standards) C 1602 - C 1610 | (Unification of the Russian Specifications) 3044 |
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Detailed Parameter of thermocouple wire
Working Temperature Range
Diameter/mm | Long time Working temperature /ºC | Short period Working temperature /ºC |
0.3 | 700 | 800 |
0.5 | 800 | 900 |
0.8,1.0 | 900 | 1000 |
1.2,1.6 | 1000 | 1100 |
2.0,2.5 | 1100 | 1200 |
3.2 | 1200 | 1300 |
Thermocouple No. indexing | Compensation wire type | Usag Classification | Measuring junction temperature / ℃ | standard EMF value/μV | Precision grade | General grade | Tolerance μV | Thermal EMF range μV | Tolerance μV | Thermal EMF range μV | SorR | SC or RC | G | 100 | 646 | ±30 | 616~676 | ±60 | 586~706 | H | 100 | 646 | - | - | ±60 | 586~706 | 200 | 1 1441 | - | - | 1.381~1 501 | | | | | | K | KX,KCA | G | -25 | -968 | ±40 | -924~-1 012 | ±80 | -880~-1 056 | or KCB | 100 | 4 096 | 4 052~4 140 | 4 008~4 184 | | H | -25 | -968 | ±40 | -924~-1 012 | ±88 | -880~-1 056 | 100 | 4 096 | 4 052~4 140 | 4 008~4 184 | 200 | 8 138 | 8 094~8 182 | 8 050~8 226 | N | NX or NC | G | -25 | -646 | ±43 | -603~-689 | ±86 | -560~-732 | 100 | 2 774 | 2 731~2 817 | 2 688~2 860 | H | -25 | -646 | ±43 | -603~-690 | ±86 | -560~-732 | 100 | 2 774 | 2 731~2 817 | 2 688~2 860 | 200 | 5 913 | 5 870~5 956 | 5 827~5 999 | E | EX | G | -25 | -1 432 | ±81 | -1 351~-1 513 | ±138 | -1 294~-1 570 | 100 | 6 319 | 6 238~ 6400 | 6 181~6 457 | H | -25 | -1 432 | ±81 | -1 351~- 1513 | ±138 | -1 294~-1 570 | 100 | 6 319 | 6 238~6 400 | 6 181~6 457 | 200 | 13 421 | 13 340~13 502 | 13 283~13 559 | J | JX | G | -25 | -1 239 | ±62 | -1 177~-1 301 | ±123 | -1 116~-1 362 | 100 | 5 269 | 5 207~5 331 | 5 146~5 392 | H | -25 | -1 239 | ±62 | - 177~-1 301 | ±123 | -1 116~-1 362 | 100 | 5 269 | 5 207~5 331 | 5 146~5 392 | 200 | 10 779 | 10 717~10 841 | 10 656~10 902 | T | TX | G | -25 | -940 | ±30 | -910~-970 | ±60 | -850~-1 000 | 100 | 4 279 | 4 249~4 309 | 4 189~4 339 | H | -25 | -940 | ±48 | -892~-988 | ±90 | -850~-1 030 | 100 | 4 279 | 4231~4 327 | 4 189~4 369 | 200 | | | | |
Industrial production——
- Metallurgical industry: used to measure the temperature of high-temperature furnaces, heating furnaces, steel rolling equipment, etc. For example, in the steelmaking process, the temperature in the furnace needs to be accurately measured to control the smelting process.
- Chemical industry: used to monitor and control the temperature in chemical reactors, distillation towers, heating furnaces and other equipment to ensure the normal progress of chemical reactions.
- Machinery manufacturing: used to measure and control the temperature in heat treatment equipment, forging furnaces, and casting furnaces to ensure the performance of materials.
- Power industry: used for temperature monitoring of power generation equipment, such as boilers, steam turbines, etc., to ensure the safe operation of equipment.
- Temperature compensation function: reduces the measurement error introduced by the cold end temperature fluctuation and improves the stability of temperature measurement.
- Low resistance: The compensation wire is usually made of high-purity copper or copper alloy material with low resistance value, which can effectively reduce the voltage drop during signal transmission and ensure the integrity of the measurement signal.
- Anti-interference ability: During the design and manufacturing process, the compensation wire usually adopts shielding measures, such as braided shielding or aluminum foil shielding, which can effectively resist external electromagnetic interference and ensure the stability and accuracy of the measurement signal.

