CPTC Surface Temperature Thermocouple with Miniature Copper Pad

The CPTC Surface Temperature Thermocouple with Miniature Copper Pad is a compact, high-accuracy temperature sensor designed for precise surface temperature measurement in research, development, and light industrial applications. Featuring a small copper sensing pad and fast response time, the CPTC is ideal for applications where space is limited and accurate thermal tracking is critical.

Engineered with Special Limits of Error (SLE) thermocouple materials and a grounded junction design, the CPTC provides reliable, repeatable measurements while maintaining excellent thermal contact with the measured surface.

Proudly made in the USA, this thermocouple is built using high-quality materials to ensure consistent performance in demanding environments.

Designed for Surface Temperature Measurement

The CPTC thermocouple is specifically designed to measure temperature directly at the surface of a component. Its miniature copper pad is bonded directly to the target surface using adhesive, allowing for accurate and responsive measurement without requiring insertion or invasive installation.

This makes the CPTC ideal for:

• Tube and pipe surface temperature monitoring

• Electronics and component testing

• Heat transfer studies

• Laboratory and R&D applications

• HVAC and thermal system analysis

By mounting directly to the surface, the CPTC ensures reliable thermal coupling and minimizes measurement lag.

Miniature Copper Pad for Precision Applications

At the core of the CPTC design is a miniature copper pad, engineered to provide excellent thermal conductivity and fast response.

• Pad dimensions: 0.085" x 0.095" (2.1 mm x 2.4 mm)

• Pad thickness: 0.020" (0.5 mm)

The small size allows for placement in tight or confined areas where larger sensors cannot be used, making it ideal for detailed thermal mapping and localized measurements.

Copper’s high thermal conductivity ensures efficient heat transfer from the measured surface to the sensing junction, improving response time and measurement accuracy.

Fast Response for Dynamic Measurements

The CPTC thermocouple is designed for fast thermal response, enabling it to track temperature changes quickly and accurately.

• Typical response time: approximately 500 milliseconds (time constant)

This rapid response makes it suitable for applications where temperature changes occur quickly, such as:

• Thermal cycling tests

• Transient heat transfer analysis

• Dynamic system monitoring

The ability to respond quickly to temperature fluctuations helps improve data accuracy and system insight.

Special Limits of Error Accuracy

The CPTC is manufactured using Special Limits of Error thermocouple materials, providing enhanced accuracy compared to standard-grade sensors.

• Accuracy: Greater of ±0.4% of reading or ±1.1°C

This level of precision ensures reliable and repeatable measurements, making the CPTC suitable for critical testing and validation applications.

Grounded Junction for Improved Response

The CPTC features a grounded sensing junction, which provides faster response compared to ungrounded designs by placing the sensing junction in direct contact with the copper pad.

Benefits of a grounded junction include:

• Faster thermal response

• Improved sensitivity to temperature changes

• Enhanced performance in dynamic applications

This design is particularly effective in applications where rapid temperature tracking is required.

Wide Thermocouple Type Options

The CPTC thermocouple is available in multiple thermocouple types to suit different measurement requirements:

• Type J

• Type K

• Type T

This flexibility allows users to select the appropriate thermocouple type based on temperature range, sensitivity, and application requirements.

Temperature Ratings

The CPTC is designed for moderate temperature applications, with the following limits:

• Maximum pad temperature: 325°F (162°C)

• Maximum cable temperature: 400°F (204°C)

These ratings make it suitable for a wide range of laboratory, testing, and industrial environments where surface temperatures are within these limits.

Durable FEP Insulated Lead Wire

The CPTC is equipped with a durable FEP-insulated lead wire, providing flexibility and protection in demanding environments.

Key cable features include:

• FEP insulation with FEP outer jacket

• 30 AWG solid core conductors

• Resistance to chemicals and environmental exposure

• Flexibility for easy routing and installation

This construction ensures reliable signal transmission while maintaining durability and ease of use.

Simple Adhesive Mounting

The CPTC thermocouple is designed for easy installation using adhesive bonding.

Installation benefits include:

• Quick and simple setup

• No welding or drilling required

• Ideal for temporary or semi-permanent installations

• Minimal impact on the measured surface

This makes it especially useful in testing environments where sensors may need to be repositioned or removed.

Flexible Configuration Options

The CPTC series offers a range of configuration options to meet specific application requirements.

Cable Length Options

• 60 inches

• 120 inches

• 240 inches

Connector Options

• Bare leads (no connector)

• Mini thermocouple plug

• Standard thermocouple plug

Custom configurations are available to meet unique application needs.

Designed for Research and Development Applications

The CPTC is specifically designed for research and development environments, where precision, repeatability, and flexibility are essential.

Typical applications include:

• Product testing and validation

• Thermal analysis and modeling

• Prototype development

• Laboratory experiments

Its compact design and high accuracy make it an excellent choice for engineers and researchers.

Made in the USA Quality

The CPTC Surface Temperature Thermocouple is proudly manufactured in the USA, ensuring high standards of quality, consistency, and performance.

Why Choose the CPTC Surface Thermocouple?

The CPTC stands out as a reliable and precise surface temperature measurement solution due to its:

• Miniature copper pad for excellent thermal contact

• Fast response time for dynamic measurements

• Special Limits of Error accuracy

• Grounded junction for improved sensitivity

• Compact design for tight spaces

• Flexible FEP-insulated lead wire

• Easy adhesive mounting

• Multiple thermocouple type options

• Customizable configurations

A Compact Solution for Accurate Surface Temperature Measurement

Accurate surface temperature measurement requires both reliable sensors and proper installation. The CPTC Surface Temperature Thermocouple provides a compact, high-performance solution that delivers precise data in applications where space, speed, and accuracy are critical.

Optimize Your Temperature Measurement System

Whether you are conducting laboratory testing, monitoring system performance, or analyzing thermal behavior, the CPTC thermocouple provides the accuracy and responsiveness needed to capture meaningful data.

Contact us today for more information, volume pricing, or custom configurations tailored to your application.