Key Characteristics of SC/RC Thermocouple Extension & Compensating Wire:

• Temperature Range:

Type S (SC): Typically ranges from -50°C to 1768°C (-58°F to 3214°F).

Type R (RC): Typically ranges from -50°C to 1768°C (-58°F to 3214°F).

The extension and compensating wires are designed to operate within the same temperature range, but may have limited performance at the extremes.

• Precision and Stability:

High Accuracy: SC and RC thermocouples, with their platinum and rhodium construction, offer very high accuracy, especially in high-temperature environments.

Extension and Compensating Wires: These wires are specifically designed to minimize errors during signal transmission, preserving the thermoelectric characteristics of the original thermocouple wire. They allow for accurate temperature readings over longer distances.

• Oxidation and Corrosion Resistance:

Platinum and Rhodium are resistant to oxidation and corrosion, even in high-temperature environments. This makes SC and RC thermocouples, and their extension wires, highly durable and suitable for extreme temperature conditions.

• Electrical Characteristics:

The thermoelectric voltage generated by Type S and Type R thermocouples is stable and consistent over a wide temperature range. The extension and compensating wires are designed to replicate these properties to ensure accurate readings, even when the thermocouple itself is located far from the measurement device.

• Insulation Materials:

SC/RC thermocouple wires are typically insulated using materials like ceramic, glass, or high-temperature-resistant coatings such as Teflon or mica. These insulation materials ensure that the wires can withstand high temperatures without breaking down or losing their insulating properties.

• Cost Considerations:

Platinum-based thermocouples (S and R) are more expensive than other types of thermocouples (such as Type K). The cost of SC/RC extension and compensating wires is also relatively high due to the use of precious metals like platinum and rhodium.

• High Sensitivity:

SC/RC thermocouples, and their associated wires, have a high sensitivity to temperature changes, which is critical in applications requiring precise temperature control and measurement.

Applications:

• Industrial Furnaces and High-Temperature Processing: SC/RC extension wires are often used in metal processing, glass manufacturing, and other high-temperature industrial applications.
• Laboratories: SC and RC thermocouples and their extension wires are ideal for precision temperature control in research and development settings.
• Aerospace and Metallurgical Industries: Used in applications that require high-accuracy temperature measurement under extreme conditions.

Summary of SC/RC Thermocouple Compensating and Extension Wire:

• Material: Platinum-13% Rhodium for the positive leg, Pure Platinum for the negative leg.
• Temperature Range: Operates within -50°C to 1768°C (-58°F to 3214°F).
• High Accuracy: Ideal for high-precision temperature measurement in extreme conditions.
• Durability: Highly resistant to oxidation, corrosion, and high temperatures.
• Applications: Common in high-temperature industrial processes, laboratories, and aerospace.
• Insulation: Insulated with materials like ceramic, glass, or Teflon to withstand extreme conditions.
• Cost: Higher cost due to the use of platinum and rhodium, but offers excellent precision and stability.