KPX/KNX K type thermocouple extension compensating wire cable
Thermocouple Wire Series(K,N,E,J,T,B,R,S)
There are multiple types and grades of thermocouple wire. Each type of thermocople wire has a specific combination of metal alloys. This combination is what defines the type of thermocouple. Thermocouple grade wire is used to manufacture thermocouple probes. Thermocouple grade wire is normally used for the junction and inside the stem sheath. In industrial installations where the recorder and control instruments are located remotely from the thermocouples, compensating cable or extension Cable must be used between the thermocouple and instrument to reduce costs.
Extension cables use the actual thermocouple materials. This is achieved by using cheaper insulations, wider tolerance alloys and thinner conductors. They are produced in multi-stranded forms for ease of installation. Calibration: NX , KX , EX , JX , TXCompensating cables use completely different alloys that happen to exhibit very similar thermo-electric properties up to a limited temperature (usually 250 °C ).
Features:
1) Continuous use up to 200℃
2) Short term use up to 250℃
3) Excellent heat, chemical, abrasion and moisture resistance
4) Provides accurate temperature measure with high temperature stability
5) Calibration test report is available
Model explanation:
1 Calibration: Type K
2 Conductor insulation: FEP
3 Jacket insulation: FEP
4 Outer shield: Stainless steel braiding
| Code | Wire 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 (EN) |
| J | Iron (JP) | Cu-Ni (JN) |
| T | Copper (TP) | Cu-Ni (TN) |
| B | Platinum Rhodium-30% | Platinum Rhodium -6% |
| R | Platinum Rhodium-13% | Platinum |
| S | Platinum Rhodium -10% | Platinum |
| Material | Type | Grade | Working temperature (deg) | Tolerance | Standard |
| Long Term | Short Term |
| NiCr-NiSi | K | 1 | -40~1100 | -40~1300 | ±1.5 deg | GB/T 2614-1998 |
| 2 | ±2.5 deg |
| NiCr-CuNi | E | 1 | -40~800 | -40~900 | ±1.5 deg | GB/T 4993-1998 |
| 2 | ±2.5 deg |
| Fe-Constantan | J | 1 | -40~600 | -40~800 | ±1.5 deg | GB/T 4994-1998 |
| 2 | ±2.5 deg |
| Cu-CuNi | T | 1 | -200~300 | -200~400 | ±0.5 deg | GB/T 2903-1998 |
| Outer Sheath(mm) | core wire Dia.( mm) | Outer Sheath(mm)o core wire Dia.( mm) | Length(m) |
| Out Dia | Wall Thickness | K,N,E,J,T Types | S,R,B Types | K,N Types | E,J,T Types | S,R Types | |
| 0.5 | 0.05-0.10 | 0.08-0.12 | ... | | | | | 500 |
| 1.0 | 0.10-0.20 | 0.15-0.20 | ... | 300 |
| 1.5 | 0.15-0.25 | 0.23-0.30 | ... | 200 |
| 1.6 | 0.16-0.26 | 0.26-0.36 | ... | 200 |
| 2.0 | 0.25-0.35 | 0.40-0.50 | 0.25-.030 | 180 |
| 3.0 | 0.38-0.48 | 0.50-0.60 | 0.30-0.40 | 80 |
| 3.2 | 0.48-0.58 | 0.58-0.68 | 0.30-0.40 | 75 |
| 4.0 | 0.52-0.62 | 0.60-0.70 | 0.35-0.40 | 70 |
| 4.8 | 0.73-0.83 | 0.75-0.85 | 0.40-0.45 | 40 |
| 5.0 | 0.78-0.88 | 0.80-0.90 | 0.40-0.45 | 40 |
| 6.0 | 0.98-1.08 | 0.90-1.10 | 0.45-0.50 | 30 |
| 6.4 | 1..05-1.15 | 1.02-1.12 | 0.45-0.50 | 30 |
| 8.0 | 1.30-1.44 | 1.30-1.40 | 0.45-0.50 | 20 |
| 12.7 | 1.75-1.90 | 1.95-2.05 | ... | 10 |
| Calibration of thermocouple | Model number of Compensation cable | Alloy wire name of Compensation cable |
| S or R | SC or RC | Cu-CuNi |
| K | KC | Cu-CuNi |
| KX | NiCr-NiSi |
| N | NC | Fe-CuNi |
| NX | NiCrSi-NiSiMg |
| E | EX | NiCr-CuNi |
| J | JX | Fe-CuNi |
| T | TX | Cu-CuNi |
For more details, pls directly contact us.
Thermocouple compensating wires, also known as thermocouple extension wires, are used in various industries to connect thermocouples to measuring instruments or control systems. They are designed to extend the signal from the thermocouple to a more convenient location for measurement or control. Some common areas of application for thermocouple compensating wires include:
1. Industrial Processes: Thermocouple compensating wires are widely used in industrial processes such as manufacturing, chemical processing, and power generation. They enable accurate temperature measurement and control in these environments.
2. HVAC Systems: Thermocouple compensating wires find application in heating, ventilation, and air conditioning (HVAC) systems for temperature sensing and control. They help maintain optimal indoor climate conditions.
3. Furnaces and Kilns: Thermocouple compensating wires are employed in high-temperature applications like furnaces, kilns, and ovens. They allow for temperature monitoring and control in these harsh environments.
4. Automotive Industry: Thermocouple compensating wires are used in the automotive sector for temperature sensing in engines, exhaust systems, and other critical components. They help optimize performance and ensure proper functioning.
5. Aerospace and Aviation: Thermocouple compensating wires find application in the aerospace and aviation industries for temperature measurement in aircraft engines, gas turbines, and other aerospace systems. They contribute to safe and efficient operation.
6. Research and Development: Thermocouple compensating wires are utilized in research laboratories and development facilities for accurate temperature measurement in experiments, testing, and prototype development.
These are some of the common application areas for thermocouple compensating wires. Their role is to extend the thermocouple signal accurately and reliably, allowing for temperature measurement and control in various industries and environments.
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