SC/RC Thermocouple Extension Wire for Long-Distance Temperature Measurement in Industrial Settings
SC/RC refers to Special Calibration (SC) and Reference Calibration (RC) thermocouple wire, which are used for extension and compensation in temperature measurement systems. These types of wires are specifically designed to be used with thermocouples, such as Type S (Platinum-Rhodium) and Type R (Platinum-Rhodium), in order to maintain accurate and consistent temperature measurements over longer distances or in environments where the thermocouple itself cannot be directly connected to the measurement equipment.
SC/RC Thermocouple Extension and Compensating Wires are essential components in ensuring accurate and stable temperature measurements over long distances or in environments with challenging conditions. Their primary features include:Accurate calibration to match the thermoelectric properties of high-precision thermocouples (e.g., Type S or Type R).Wide temperature range matching the corresponding thermocouple.High durability, resistance to oxidation and corrosion, and reliable performance under harsh industrial conditions.Flexible and easy integration into temperature monitoring and measurement systems.
These wires are widely used in industries requiring high-precision temperature control, such as in aerospace, semiconductor manufacturing, research, and metrology labs.
Thermocouple temperature range and tolerance
| Themcouple No. indexing |
Compensation wire type |
Usag classification |
Measuring junction temperature/
℃
|
Standardc EMF value/μV |
Presion grade |
General grade |
| Tolerance/μV |
Thermal EMF range/μV |
Tolerance/μV |
Thermal EMF range/μV |
| S |
SC OR RC |
G |
100 |
646 |
±30 |
616~676 |
±60 |
586~706 |
| H |
100 |
646 |
----- |
----- |
±60 |
586~706 |
| 200 |
11441 |
----- |
----- |
1381~1501 |
Compensating Wire Reciprocating Resistance
| Compensation wire type |
Reciprocating Resistance (Ω/m20℃ less than) |
| 0.2mm² |
0.5mm² |
1.0mm² |
1.5mm² |
2.5mm² |
| SC/RC |
0.25 |
0.1 |
0.05 |
0.03 |
0.02 |
Key Features of SC/RC Thermocouple Extension Wire:
Material Composition:
- SC (Special Calibration) and RC (Reference Calibration) wires are typically made of materials that mimic the thermoelectric properties of the thermocouple they are designed for (e.g., Type S or Type R).
- These wires are often made of alloys like platinum, gold, or other high-precision metals that are carefully calibrated to ensure minimal signal degradation during signal transmission.
Thermocouple Calibration:
- SC/RC wires are specially calibrated to match the thermoelectric characteristics of the thermocouple type they correspond to.
- SC wires are used when precise calibration is necessary for very high-accuracy applications, such as high-temperature measurement.
- RC wires serve as a reference for ensuring that temperature readings remain consistent over time and across different devices.
Temperature Range:
- These extension and compensating wires generally match the temperature range of the thermocouple they are designed for.
- Type S (Platinum-Rhodium) thermocouples can measure temperatures in the range of -50°C to 1768°C (-58°F to 3200°F), while Type R (Platinum-Rhodium) can measure in the range of -50°C to 1700°C (-58°F to 3092°F).
Accuracy and Stability:
- SC/RC wires are designed to ensure that the temperature readings from the thermocouple remain accurate even when extended over long distances or exposed to variable ambient conditions.
- These wires are highly stable, ensuring minimal drift and accurate transmission of the thermoelectric signal.
Durability:
- These wires are constructed to withstand high temperatures, oxidation, and corrosion. They are often insulated with materials like Teflon, ceramic, or fiberglass to provide excellent protection against environmental factors.
- SC/RC wires are also designed to handle mechanical stress, vibrations, and humidity, ensuring reliable operation in harsh industrial settings.
Flexibility and Application:
- SC/RC extension and compensating wires offer flexibility in both installation and use, as they can be easily routed to connect thermocouples with temperature controllers, data loggers, and other measurement devices.
- The wires are particularly useful in industrial temperature monitoring, high-precision research, calibration laboratories, and other settings where exact temperature measurements are critical.
Uses and Applications:
Temperature Extension:
- SC/RC wires are used to extend the distance between a thermocouple probe (e.g., Type S or Type R) and a temperature measurement device, such as a thermometer or controller, without introducing significant error or signal loss.
Temperature Compensation:
- Compensating wires are used to maintain the accuracy of the temperature readings when environmental conditions or wire distance could cause the thermoelectric signal to degrade.
- These wires are also used in applications where the thermocouple probe is in an extreme environment (e.g., high-temperature areas) but the measurement equipment needs to be in a safer or more accessible location.
High-Precision Applications:
- SC/RC thermocouple extension and compensating wires are often employed in research and development, metrology, aerospace, pharmaceutical, and semiconductor industries, where precise temperature measurements are essential.
Laboratories and Calibration:
- These wires are used to calibrate and ensure accurate readings across temperature sensors in high-accuracy testing and calibration laboratories.
