High Accuracy Type T Thermocouple Wire Positive Leg Cu(TP) With Copper Positive Leg For Low-Temperature Measurements
Brand Name:Senphus
Certification:SGS, ISO9001
Model Number:type T, TP
Minimum Order Quantity:5kg
Delivery Time:3 days
Payment Terms:T/T,D/P
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Changzhou Jiangsu China
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Building 3, No. 29, Beitanghe East Road, Qinglong Street, Tianning District, Changzhou City, Jiangsu Province
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High Accuracy Type T Thermocouple Wire Positive Leg Cu(TP) With Copper Positive Leg For Low-Temperature Measurements
The positive leg of Type T thermocouple wire, designated as Cu(TP), is composed of pure electrolytic copper (≥99.9% purity). This material offers a stable and predictable thermoelectric response when paired with the negative leg (constantan, a Cu-Ni alloy). Common applications include food processing, HVAC systems, refrigeration, and laboratory equipment. Cu(TP) ensures reliable performance in non-aggressive environments, balancing durability and cost efficiency.
| Name | TP | TN |
| Melting Range(℃) | 1084 | 1220 |
| Density(g/cm³) | 8.9 | 8.8 |
| Resistivity(μΩm20℃) | 1.71 | 49 |
| Resistance-temperture coefficient ×10-4/K(0℃-1200℃) | 43 | 0.5 |
| Tensile strength Rm N/mm² MPa | ≥196 | ≥390 |
| Elongation % | ≥30 | ≥25 |
Composition & Properties:
- Positive Leg (TP): Pure Copper (~99.9%)
- Temperature Range: -200°C to 350°C
- Accuracy: ±1.0°C or 0.75% (Standard), ±0.5°C or 0.4% (Special)
- Electrical Conductivity: High (similar to pure copper)
- Corrosion Resistance: Good in dry air but prone to oxidation in humid environments
- EMF Output: ~40.69 µV/°C at 0-100°
Thermocouple temperature range and tolerance
Name | Usag Classification | Grade | Max. operating temperature(℃) | emperitre nres) | Tnlerene | Standard | |
Lang term | Short term | ||||||
Cu-CuNi (Type T) thermocouple bright wire | T | l, Ⅱ | 300 | 350 | -40~350 | ±0.5℃ or ±0.4%t ±1℃ or ±0.75%t | GB/T4994 ISO 14125 |
| Ⅲ | -200~40 | ±2.5℃ or ±0.75%t | |||||
Key Features of Type T Positive Leg (Cu, TP):
- Temperature Range: Operates effectively from -200°C to +350°C (-328°F to +662°F), ideal for cryogenic and moderate-temperature applications.
- Precision: Provides high accuracy (±0.5°C typical) and linear output, making it suitable for calibration and control systems.
- Corrosion Resistance: Resists oxidation in dry environments but requires protection in humid or corrosive conditions.
- Cost-Effectiveness: More affordable than noble-metal thermocouples (e.g., Type S/R/B).
- Flexibility: Available in various gauges (e.g., 30AWG to 12AWG) for different installation needs.
Applications:
- Cryogenic Temperature Measurements:
Used in laboratories and industrial applications requiring precise low-temperature measurements (-200°C and below).
Common in liquid nitrogen and liquefied natural gas (LNG) monitoring.
- Food Processing & Storage:
Used in food safety monitoring, refrigeration units, and cold storage systems.
Helps ensure compliance with food industry standards (e.g., HACCP).
- Biomedical & Pharmaceutical Industry:
Monitoring temperatures in medical storage units for vaccines and pharmaceuticals.
Used in incubators and cryogenic freezers.
- Environmental Monitoring & Meteorology:
Used in weather stations, climate research, and environmental studies.
Ideal for measuring soil, water, and air temperatures.
- Industrial Applications:
Suitable for plastics molding, HVAC systems, and scientific equipment calibration.
Used in temperature-sensitive electrical components.
- Aerospace & Automotive Industry:
Helps in cold chamber testing of aircraft and automotive components.
Used in space research for measuring extreme temperature conditions.
Key Advantages:
- High Accuracy & Stability – Excellent for precision measurements in critical industries.
- Wide Temperature Range – Functions efficiently from cryogenic to moderate temperatures.
- Corrosion Resistance – Performs well in humid and wet environments.
- Non-Magnetic – Suitable for sensitive applications.
Limitations:
- Prone to Oxidation – Copper oxidizes at high temperatures, limiting its range.
- Soft Metal – Susceptible to mechanical damage and requires careful handling.
The Cu (TP) positive leg in Type T thermocouples is a reliable, high-accuracy option for low-to-moderate temperature applications. Its strong thermal conductivity, corrosion resistance, and non-magnetic properties make it ideal for food processing, medical storage, environmental monitoring, and cryogenic research.
High Accuracy Type T Thermocouple Wire Positive Leg Cu(TP) With Copper Positive Leg For Low-Temperature Measurements
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