Thermtest MP-2 Measurement Platform

An advanced portable meter with unique selection of transient thermal conductivity sensors for a variety of applications, with a focus on primary measurements. It is a measurement platform for measuring Liquids, Solids, Pastes and Powders.

Conforms to ASTM and ISO Standards

Measurement Platform Specifications

Transient Line Source (TLS 50 mm and TLS 100 mm)

Thermtest TLS 50mm sensor
Materials Concrete, Rock and Polymers
Measurement Capabilities Bulk Properties
Thermal Conductivity 0.3 to 5 W/m•K
Thermal Resistivity 0.2 to 3.3 mK/W
Measurement Time 3 min.
Reproducibility Typically better than 2%
Accuracy Typically better than 5%
Temperature Range -40 to 100°C
Minimum Sample Size 50 mm in length, 50 mm diameter
Largest Sample Size Unlimited
Standards ASTM D5334-14
Thermtest TLS 100mm sensor
Materials Soils, Pastes, Powders and Solids
Measurement Capabilities Bulk Properties
Thermal Conductivity 0.1 to 5 W/m•K
Thermal Resistivity 0.2 to 10 mK/W
Measurement Time 3 min.
Reproducibility Typically better than 2%
Accuracy Typically better than 5%
Temperature Range -40 to 100°C
Minimum Sample Size 100 mm in length, 50 mm diameter
Largest Sample Size Unlimited
Standards ASTM D5334-14, IEEE 442-1981

Transient Line Source (TLS 150 mm)

Thermtest TLS 150mm sensor
Materials Soils, Pastes, Powders and Solids
Measurement Capabilities Bulk Properties
Thermal Conductivity 0.1 to 3 W/m•K
Thermal Resistivity 0.3 to 10 mK/W
Measurement Time 3 min.
Reproducibility Typically better than 2%
Accuracy Typically better than 5%
Temperature Range -40 to 100°C
Minimum Sample Size 150 mm in length, 50 mm diameter
Largest Sample Size Unlimited
Standards ASTM D5334-14, IEEE 442-2017

Transient Hot Wire (THW-L3 and THW-S)

Transient Hot Wire THW-L3 Sensor
Materials Liquids, Pastes and Powders
Measurement Capabilities Bulk Properties
Thermal Conductivity 0.01 to 1 W/m•K
Measurement Time 1 second
Reproducibility Typically better than 2%
Accuracy Typically better than 5%
Temperature Range 10 to 40°C
Minimum Sample Size 15 mL
Largest Sample Size Unlimited
Standards ASTM D7896-19
Transient Hot Wire THW-S Sensor
Materials Insulation and Soft Materials
Measurement Capabilities Bulk Properties
Thermal Conductivity 0.01 to 2 W/m•K
Measurement Time < 5 seconds
Reproducibility Typically better than 2%
Accuracy Typically better than 5%
Temperature Range 10 to 40°C
Minimum Sample Size 50 mm x 10 mm
Largest Sample Size Unlimited
Standards N/A

Transient Plane Source (TPS-EFF)

Thermtest Thermal Effusivity Sensor
Materials Textiles, Fabrics and Solids
Measurement Capabilities 1-Dimensional
Thermal Effusivity Range 35 to 1700 W√s/m2K
Measurement Time 2 and 10 seconds
Reproducibility 2%
Accuracy 5%
Temperature Range -10 to 50°C
Minimum Sample Size 35 mm diameter x thickness dependent on Effusivity
Maximum Sample Size Unlimited
Moisture Range 0 to 90% (non-condensing)
Sensor Diameter 30 mm
Standards ASTM D7984-16
Test Method Transient Plane Source (TPS)

Sensor Comparison

TLS 150 mm Sensor
TLS 150 mm Transient Line Source

0.1 to 3 W/m•KThermal Conductivity

-40 to 100°CTemperature Range

5%Accuracy

THW-S Sensor
THW-S Transient Hot Wire – Solids

0.01 to 2 W/m•KThermal Conductivity

10 to 40°CTemperature Range

5%Accuracy

TLS 100mm sensor
TLS 100mm Transient Line Source

0.1 to 5 W/m•KThermal Conductivity

-40 to 100°CTemperature Range

5%Accuracy

THW-L3 Sensor
THW-L3 Transient Hot Wire – Liquids

0.01 to 1 W/m•KThermal Conductivity

10 to 40°CTemperature Range

5%Accuracy

TLS 50mm sensor
TLS 50 mm Transient Line Source

0.3 to 5 W/m•KThermal Conductivity

-40 to 100°CTemperature Range

5%Accuracy

TPS-EFF Transient Plane Source

35 to 1700 W√s/m2KThermal Effusivity

-10 to 50°CTemperature Range

5%Accuracy

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