OVERVIEW
• Type J, K, or T thermocouple
• Embed cone barbed tip into material (using insertion tool)
• Fiberglass or Teflon insulated wires
• Designed for research & development applications
MADE IN THE USA
ETTC series Embeddable Thermocouples are an ideal solution for sub-surface temperature measuring applications. Special limits of error accuracy thermocouple wire is cut to the required length and the conductors are passed through a miniature cone shaped barbed tip then TIG welded to form a measuring junction.
The cone barbed tip is pressed into the surface using an Embedding Tool (sold separately).
Ideal for, but not limited to, sub-surface temperature measurements of rubber, plastic, or wood materials. As an option, we can install a Mini Connector on the adjacent wire lead termination end.
Contact us for volume pricing. Custom configurations available.
Options:
TECHNICAL SPECIFICATIONS
Thermocouple type: | J, K, or T |
Sensing Junction Type: | Grounded |
Accuracy: | Greater of +/-0.4% of reading or +/- 1.1°C (Special Limits of Error) |
Cone Tip Material: | Stainless Steel |
Cone Tip Dimensions: | Max OD = 0.125”, Min OD = 0.150” (Max OD = 3.2 mm, Min OD = 3.8 mm) |
Insertion Tool: | Order p/n: ETTC-TOOL |
Response Time*: | 500 mS |
*Time Constant: | Defined as the time required to reach 63.2% of an instantaneous temperature change. Five time constants are required to approach 100% of the step change value |
Lead Wire: | Fiberglass insulated, Fiberglass outer jacket, 24 AWG, solid core |
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Fast-Response Embedded Temperature Sensor for R&D and Material Testing
The ETTC Embeddable Thermocouple with Miniature Cone Barbed Tip is a specialized temperature sensor designed for direct embedding into materials for accurate internal temperature measurement. Engineered for research and development applications, this thermocouple provides fast response, secure mechanical retention, and reliable performance in environments where surface-mounted sensors are not sufficient.
With its unique cone-shaped barbed tip, the ETTC is ideal for capturing temperature data directly within materials such as plastics, composites, elastomers, and other substrates where internal temperature profiling is critical.
Designed for Embedded Temperature Measurement
Unlike traditional surface or immersion thermocouples, the ETTC is specifically designed to be embedded into the material being measured. The miniature cone tip allows for:
Secure insertion into soft or semi-rigid materials
Stable positioning during testing or operation
Accurate measurement of internal temperatures
As described in the datasheet, the probe is intended to be installed using a dedicated insertion tool, ensuring proper placement and repeatable results.
This makes it particularly valuable for applications where internal temperature gradients must be measured.
Cone Barbed Tip for Secure Retention
The defining feature of the ETTC is its miniature cone-shaped barbed tip, which provides mechanical retention once inserted into a material.
Designed to anchor within the test material
Minimizes movement or displacement
Ensures consistent thermal contact
The cone tip is constructed from 304 stainless steel, offering durability and resistance to wear during repeated use.
Fast Response for Dynamic Measurements
The ETTC is designed for rapid thermal response:
Response time: ~500 milliseconds (time constant)
This fast response allows the sensor to quickly track temperature changes within materials, making it ideal for:
Thermal cycling tests
Dynamic heating and cooling processes
Real-time temperature monitoring in experiments
Special Limits of Error Accuracy
The ETTC thermocouple is manufactured using Special Limits of Error (SLE) materials:
Accuracy: Greater of ±0.4% of reading or ±1.1°C
This ensures high measurement precision and repeatability, even in demanding applications.
Multiple Thermocouple Type Options
The ETTC is available in several thermocouple types to match specific application requirements:
Type J
Type K
Type T
Each type offers unique advantages:
Type K: Wide temperature range and general-purpose use
Type J: Suitable for moderate temperature applications
Type T: Excellent performance at lower temperatures
This flexibility allows users to select the optimal sensor for their specific testing conditions.
Grounded Junction for Faster Response
The ETTC features a grounded sensing junction:
Faster thermal response compared to ungrounded designs
Improved heat transfer between the sensor and material
Ideal for applications where response time is critical
Flexible Lead Wire Options
The ETTC is available with high-quality lead wire options to suit different environments:
Insulation Options:
Fiberglass insulation with fiberglass outer jacket
Teflon insulation with Teflon outer jacket
Wire Specifications:
24 AWG stranded conductors
Flexible and durable construction
These options allow the sensor to be used in both high-temperature and chemically sensitive environments.
Multiple Cable Length and Connector Options
The ETTC can be configured to meet specific application requirements:
Cable Length Options:
36 inches
72 inches
144 inches
Connector Options:
No connector (bare leads)
Male miniature plug
Standard thermocouple plug
This flexibility allows for easy integration into a wide range of measurement systems.
Compact Design for Minimal Thermal Disturbance
The ETTC’s small size allows it to be embedded with minimal disruption to the material being tested:
Cone tip diameter approximately 0.125" to 0.150"
Compact profile reduces thermal mass
Minimizes impact on material properties
This makes it ideal for precision testing where maintaining material integrity is important.
Designed for Research and Development Applications
The ETTC is specifically designed for R&D and experimental applications where internal temperature measurement is required.
Typical use cases include:
Material testing and thermal profiling
Composite and polymer research
Injection molding and curing processes
Adhesive and sealant evaluation
Battery and electronics testing
Its ability to measure internal temperatures makes it an essential tool for engineers and researchers.
Dedicated Insertion Tool for Accurate Placement
To ensure proper installation, a dedicated insertion tool is available:
Allows precise placement of the cone tip
Reduces risk of damage to the sensor
Ensures consistent insertion depth
This tool helps achieve repeatable and reliable measurement results.
Durable Construction for Repeated Use
The ETTC is designed for durability and long-term use:
Stainless steel tip for strength and wear resistance
High-quality lead wires for flexibility
Robust construction for repeated insertion
This ensures consistent performance across multiple test cycles.
Why Use an Embedded Thermocouple?
Embedded thermocouples offer several advantages over surface-mounted sensors:
Direct measurement of internal temperature
Improved accuracy in thermal gradient analysis
Reduced influence of ambient conditions
More representative data for material behavior
The ETTC is specifically designed to deliver these benefits in a compact and reliable form.
Key Features at a Glance
Embeddable cone barbed tip design
Type J, K, or T thermocouple options
Special Limits of Error accuracy
Fast response time (~500 ms)
Grounded junction for improved performance
304 stainless steel tip
Fiberglass or Teflon insulated lead wires
Multiple cable lengths and connector options
Designed for R&D and material testing applications
Made in the USA
A Specialized Solution for Internal Temperature Measurement
The ETTC Embeddable Thermocouple provides a unique and effective solution for measuring temperature inside materials. Its cone tip design ensures secure placement, while its fast response and high accuracy make it ideal for demanding testing applications.
Optimize Your Thermal Testing Setup
Whether you are analyzing material behavior, validating product performance, or conducting research, the ETTC offers the precision and reliability needed to capture accurate internal temperature data.
Contact us today to learn more or configure the right thermocouple for your application.