Ohmalloy Material Co.,Ltd
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1. Specifications:
1.Style:Compensation Wire
2.Thermocouple RTD wire
Thermocouple RTD wire Classification
1. Thermocouple level (high temperature level). This type of thermocouple wire is mainly suitable for thermocouple type K, J, E, T, N and L and other high temperature detection instrument, temperature sensor, etc.
2. Compensating wire level (low temperature level). This type of thermocouple wire is mainly suitable for compensating cable and extension wire of various thermocouples of type S, R, B, K, E, J, T, N and L, heating cable, control cable and so on.
Thermocouple variety and index
Thermocouple Variety and Index | ||
Variety | Type | Measurement Range(°C) |
NiCr-NiSi | K | -200-1300 |
NiCr-CuNi | E | -200-900 |
Fe-CuNi | J | -40-750 |
Cu-CuNi | T | -200-350 |
NiCrSi-NiSi | N | -200-1300 |
NiCr-AuFe0.07 | NiCr-AuFe0.07 | -270-0 |
2. Dimensions and Tolerance of Fiberglass Insulated Thermocouple Wire
Dimensions / Tolerance mm ) : 4.0+-0.25
Color code & initial calibration tolerances for thermocouple wire:
| Thermocouple Type | ANSI Color Code | Initial Calibration Tolerances | ||||
| Wire Alloys | Calibration | +/- Conductor | Jacket | Temperature Range | Standard Limits | Special Limits |
| Iron(+) vs. Constantan(-) | J | White/Red | Brown | 0°C to +285°C 285°C to +750°C | ±2.2°C ± .75% | ±1.1°C ± .4% |
| CHROMEL(+) vs. ALUMEL(-) | K | Yellow/Red | Brown | -200°C to -110°C -110°C to 0°C 0°C to +285°C 285°C to +1250°C | ± 2% ±2.2°C ±2.2°C ± .75% | ±1.1°C ± .4% |
| Copper(+) vs. Constantan(-) | T | Blue/Red | Brown | -200°C to -65°C -65°C to +130°C 130°C to +350°C | ± 1.5% ±1°C ± .75% | ± .8% ± .5°C ± .4% |
| CHROMEL(+) vs. Constantan(-) | E | Purple/Red | Brown | -200°C to -170°C -170°C to +250°C 250°C to +340°C 340°C+900°C | ± 1% ±1.7°C ±1.7°C ± .5% | ±1°C ±1°C ± .4% ± .4% |
Color Code & Initial Calibration Tolerance for Extension Wire:
| Extension type | ANSI Color Code | Initial Calibration Tolerances | ||||
| Wire Alloys | Calibration | +/- Conductor | Jacket | Temperature Range | Standard Limits | Special Limits |
| Iron (+) vs. Constantan(-) | JX | White/Red | Black | 0°C to +200°C | ±2.2°C | ±1.1°C |
| CHROMEL (+) vs. ALUMEL (-) | KX | Yellow/Red | Yellow | 0°C to +200°C | ±2.2°C | ±1.1°C |
| Copper(+) vs. Constantan(-) | TX | Blue/Red | Blue | -60°C to +100°C | ±1.1°C | ± .5°C |
| CHROMEL(+) vs. Constantan(-) | EX | Purple/Red | Purple | 0°C to +200°C | ±1.7°C | ±1.1°C |
3. Size and Insulation Material Reference
| Size and Insulation Material Reference | |||||||
| Type | Cross-Section (mm2) | Diameter | Insulation Material/ Jacket Material | Shield | |||
| AWG (SingleCore) | mm (Multi-Core) | ||||||
| SC RC BC KCA KCB KX NC NX EX JX LX | 0.07 | - | 1 x 0.30 | Ceramic Fiber(-60,+1200ºC) Vitreous Silica(-60,+800ºC) Mica(-60,+650ºC) Silica Fiber(-60,+1000ºC) High Temperature Fiber(-60,+600ºC) Fiberglass(-60,+450ºC) PolyimideTape/Kapton(-60,+260ºC) PTFE(-60,+275ºC) PFA(-60,+275ºC) FEP(-60,+205ºC) SiliconeRubber(-60,+200ºC) PVC(-25,+105ºC) PVC(-25,+70ºC) | Nickel Chrome Alloy Wire Braiding; Stainless Steel Braiding; Tin-plated Copper Braiding; Aluminum-plastic Tape Wraping; Copper Tape Wraping; Aluminum Foil Wraping | ||
Thermocouple Variety and Index | ||
Variety | Type | Measurement RangeC |
NiCr-NiSi | K | -200-1300 |
NiCr-CuNi | E | -200-900 |
Fe-CuNi | J | -40-750 |
Cu-CuNi | T | -200-350 |
NiCrSi-NiSi | N | -200-1300 |
NiCr-AuFe0.07 | NiCr-AuFe0.07 | -270-0 |
3 . Dimensions and Tolerance of Fiberglass Insulated Thermocouple Wire
Dimensions / Tolerance mm ) : 4.0+-0.25
Color code & initial calibration tolerances for thermocouple wire:
Color Code & Initial Calibration Tolerance for Extension Wire:
PVC-PVC Physical Properties:
| Characteristics | Insulation | Jacket |
| Abrasion Resistance | Good | Good |
| Cut Through Resistance | Good | Good |
| Moisture Resistance | Excellent | Excellent |
| Solder Iron Resistance | Poor | Poor |
| Service Temperature | 105C continuous 150C single | 105C continuous 150C single |
| Flame Test | Self-extinguishing | Self-extinguishing |
Janey
Ohmalloy Material Co., Ltd
Add: No. 1211, Mudanjiang Road, Baoshan district, Shanghai
Mob./ Whatsapp/wechat/skype: +86-13805769652
Email: tina@ohmalloy.com