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1000℃ KX-VS-VS-0.81 Vitreous Silica Insulated Thermocouple Cable Type K Wire
Thermocouple Wire and Cable Know-How
For the extension/compensation cable, the basic structure is conductor and insulation.
To increase its temperature bearing ability and to install easily, jacket is applicable.
In the working environment, there are too much factors will interference the EMF signal, therefore shield layer is practical way to prevent the cable from interference caused by complex environment.
1. The Compensation Wire Name and Code
| Compensation Alloy Wire Name | Positive | Negative | ||
| Name | Code | Name | Code | |
| Copper-Copper Nickel 0.6 | Copper | SPC | Copper Nickel 0.6 | SNC |
| Copper-Copper Nickel 0.6 | Copper | RPC | Copper Nickel 0.6 | RNC |
| Iron-Copper Nickel 22 | Iron | KPCA | Copper Nickel 22 | KNCA |
| Copper-Copper Nickel 40 | Copper | KPCB | Copper Nickel 40 | KNCB |
| Chromel-NiSi3 | Ni90Cr10 | KPX | Ni97Si3 | KNX |
| Iron-Copper Nickel 18 | Iron | NPC | Copper Nickel 18 | NNC |
| NiCr14Si-NiSi4Mg | NiCr14Si | NPX | NiSi4Mg | NNX |
| NiCr10-Copper Nickel 45 | NiCr10 | EPX | Copper Nickel 45 | ENX |
| Iron-Copper Nickel 45 | Iron | JPX | Copper Nickel 45 | JNX |
| Copper-Copper Nickel 45 | Copper | TPX | Copper Nickel 45 | TNX |
2. How To Choose Thermocouple
| Type | Insulation material | CODE | Inner Shielding | CODE | JACKET | CODE | Out shielding | CODE | Pairs | solid | Earth wire | Stranded |
| K | FEP | FP | FEP | FP | 0 | 0.2mm | E | cross section+R | ||||
| T | PFA | FA | Al foil | AL | PFA | FA | copper wire | CU | 2 | 0.3mm | ||
| E | PVC 70℃ | LP | copper wire | CU | PVC 70℃ | LP | Tinned copper | TC | 3 | 0.5mm | ||
| J | PVC 105℃ | HP | Tinned copper | TC | PVC 105℃ | HP | Nickel plated copper | NC | 4 | 0.75mm | ||
| N | Fiberglass 400℃ | BL | Nickel plated copper | NC | Fiberglass 400℃ | BL | Silver plated copper | AC | 5 | 1.0mm | ||
| SC | Fiberglass600℃ | BM | Silver plated copper | AC | Fiberglass600℃ | BM | SS 304 wire | SS | 6 | 1.5mm | ||
| Fiberglass700℃ | BH | Fiberglass700℃ | BH | |||||||||
| MICA FIBER 650℃ | MA | |||||||||||
| KCA | Vitreous Silica 800℃ | VS | SS 304 wire | SS | Vitreous Silica 800℃ | VS | 7 | 2.5mm | ||||
| KCB | Silica fiber1000℃ | SV | Inconel 600 wire | 600 | Silica fiber1000℃ | SV | 8 | |||||
| RTD | Ceramic fiber1200℃ | CF | Inconel 625 wire | 625 | Ceramic fiber1200℃ | CF | 9 | |||||
| PTFE | PT | PTFE | PT | |||||||||
| ETFE | ET | ETFE | ET | |||||||||
| KAPTON | KP | KAPTON | KP | |||||||||
| Silcone rubber | SR | Silcone rubber | SR | |||||||||
| Rubber | RU | Rubber | RU | |||||||||
| PE | PE | PE | PE |
3. Color Standard Reference
4. The Negative Wire VS Pt Nominal Thermoelectromotive Force Vaule Reference
| Exten-sion Cable Code | Alloy Wire Code | Applica-tion Classifi-cation | Measurement Terminal Temperature (℃) | Nominal Thermoele-ctromotive force(μV) | Precision Grade Thermoelectrom-otive force(μV) | Normal Grade Thermoelectrom-otive force(μV) | ||
| Tolerance | Value Range | Tolerance | Value Range | |||||
| SC or RC | SNC or RNC | G | 100 | -127 | ±20 | -107～-147 | ±48 | -79～-175 |
| H | 100 | -127 | - | - | ±48 | -79～-175 | ||
| 200 | -396 | - | - | -348～-444 | ||||
| KCB | KNCB | G | 100 | 3322 | ±34 | 3288～3356 | ±76 | 3246～3398 |
| KX | KNX | G | -25 | -342 | ±15 | -327～-357 | ±31 | -311～-373 |
| 100 | 1240 | 1225～1255 | 1209～1271 | |||||
| H | -25 | -342 | ±15 | -327～-357 | ±31 | -311～-373 | ||
| 100 | 1240 | 1225～1255 | 1209～1271 | |||||
| 200 | 2160 | 2145～2175 | 2129～2191 | |||||
| NX | NNX | G | -25 | -278 | ±14 | -264～-292 | ±30 | -248～-308 |
| 100 | 989 | 975～1003 | 959～1019 | |||||
| H | -25 | -278 | ±14 | -264～-292 | ±30 | -248～-308 | ||
| 100 | 989 | 975～1003 | 959～1019 | |||||
| 200 | 1970 | 1956～1984 | 1940～2000 | |||||
| EX | ENX | G | -25 | -805 | ±47 | -758～-852 | ±83 | -722～-888 |
| 100 | 3506 | 3459～2848 | 3423～3589 | |||||
| H | -25 | -805 | ±47 | -758～-852 | ±83 | -722～-888 | ||
| 100 | 3506 | 3459～2848 | 3423～3589 | |||||
| 200 | 7451 | 7404～7498 | 7368～7534 | |||||
| TX | TNX | G | -25 | -805 | ±20 | -785～-825 | ±48 | -757～-853 |
| 100 | 3506 | 3486～3526 | 3458～3554 | |||||
| H | -25 | -805 | ±38 | -785～-825 | ±78 | -727～-883 | ||
| 100 | 3506 | 3486～3526 | 3428～3584 | |||||
| 200 | 7451 | 7413～7489 | 7373～7529 | |||||
