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Type J Thermocouple Extension Wire
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xProduct Details
| Product Name | Thermocouple Extension Wire | Color | Bright |
|---|---|---|---|
| Certificate | ISO9001 | Temperature Range | 32 To 392F (0 To 200C) |
| EMF Tolerance | +/- 2.2C Or +/- .75% | Grade | Extension Grade JPX/JNX |
| Positive | Iron | Negative | Cu-Ni |
| Other Name | Iron-Constantan Thermocouple | Special Limits Of Error | +/- 1.1C Or 0.4% |
| Highlight | JP Thermocouple Extension Wire,0.3mm Thermocouple Wire,Type J Thermocouple Extension Wire |
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Product Description
- Thermocouple Extension Wire
Type J Thermocouple extension wire (JP--Iron, JN-Cu-Ni):
Fe- CuNi thermocouple (type J) extension is also named Iron-Constantan thermocouple.. It is used in vacuum, oxidizing, inert or reducing atmospheres. Iron element oxidizes rapidly at temperatures exceeding 538'C, and therefore heavier gauge wire is recommended for longer life at these temperatures.
Our plant mainly manufacture type KX, NX, EX, JX, NC, TX, SC/RC, KCA, KCB compensating wire for thermocouple, and they are used in temperature measurement instruments and cables. Our thermocouple compensating products are all made abiding by GB/T 4990-2010 'Alloy wires of extension and compensating cables for thermocouples' (Chinese National Standard), and also IEC584-3 'Thermocouple part 3-compensating wire' (International standard).
The thermocouple compensation cables can also be termed as instrumentation cables, since they are used for process temperature measurement. The construction is similar to pair instrumentation cable but the conductor material is different. Thermocouples are used in processes to sense temperature and is connected to the pyrometers for indication and control. The thermocouple and pyrometer are electrically conducted by thermocouple extension cables / thermocouple compensating cables. The conductors used for these thermocouple cables are required to have similar thermo-electric (emf) properties as that of the thermocouple used for sensing the temperature.
- Thermocouple Wire
| 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) |
- Standards
| 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 |
Working Temperature Range
| Diameter/mm | Long time Working temperature /ºC | Short period Working temperature /ºC |
| 0.3,0.5 | 300 | 400 |
| 0.8,1.0, 1.2 | 400 | 500 |
| 1.6, 2.0 | 500 | 600 |
| 2.5, 3.2 | 600 | 750 |
Detailed Parameter of thermocouple wire
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Size range
Wire: 0.10 to 8.0 mm.
- Type J Temperature Range:
- Thermocouple grade wire, -346 to 1,400F (-210 to 760C)
- Extension wire, 32 to 392F (0 to 200C)
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Type J Accuracy (whichever is greater): - Standard: +/- 2.2C or +/- .75%
- Special Limits of Error: +/- 1.1C or 0.4%
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