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The MP-2 is a portable meter with unique selection of transient thermal conductivity sensors for a variety of applications, with a focus on primary measurements.

Best For Liquids, Solids, Pastes and Powders

Conforms To ISO And ASTM

Standard Test
Method

Multi-Sensor

Primary Measurement
Sensors

Thermal conductivity Measurement Platform – 2 (MP-2) users benefit from the convenience and accuracy gained when using primary testing methods. The MP-2 controller auto-detects the connected sensor and loads corresponding testing parameters. Measurements are easily performed with the smart on-board software and transferred to computer with an included Windows utility program.

Features

The MP-2 is an advanced meter with unique selection of transient thermal conductivity sensors for a variety of applications, with a focus on primary measurements. The transient thermal conductivity sensors share similar principles of operation. The sensor wire is heated using a constant current source (q). The temperature rise is then recorded by measuring the change in electrical resistance of the wire (THW and EFF) or by a resistance temperature detector device (TLS). For samples of high thermal conductivity, the lower the slope; for samples of low thermal conductivity, the higher the slope. 

For convenience, the auto-testing function can be programmed on-board or with the MP-2 Windows utility software. Additional on-board and utility features include the ability to review, save or delete, and export results to Excel. To maximize portability, power can be supplied by battery or USB cable. Informative screen icons keep users informed about power status and testing progress.

MP-2-THW-L3-Summary-Water-1

  • Primary Measurement Sensors
  • Economical, Smart, and Accurate
  • Portable and Lab Instruments
  • Multi-Sensor
  • Auto-Test and Export
  • ASTM and ISO Compliant
MP-2 Sensors
SENSORS MATERIALS
THW-L3 Liquids and Pastes
TLS 50 mm Rock and Concrete
TLS 100 mm Soils and Polymers
TLS 150 mm Soils and Polymers
THW-S Insulation and Soft Materials
TPS-EFF Textiles and Fabrics

TLS Specifications

TLS 50mm

tls 50mm

TLS 100mm

tls 100mm

TLS 150mm

tls 150mm

Materials Concrete, Rock, and Polymers Soils, Pastes, Powders, and Solids Soils, Pastes, Powders, and Solids
Measurement Capabilities Bulk Properties Bulk Properties Bulk Properties
Thermal Conductivity 0.3 to 5 W/m•K 0.1 to 5 W/m•K 0.1 to 3 W/m•K
Thermal Resistivity 0.2 to 3.3 mK/W 0.2 to 10 mK/W 0.3 to 10 mK/W
Measurement Time 3 min. 3 min. 3 min.
Reproducibility ± 2% ± 2% ± 2%
Accuracy ± 5% ± 5% ± 5%
Temperature Range -40 to 100°C -40 to 100°C -40 to 100°C
Minimum Sample Size 50 mm in length, 50 mm diameter 100 mm in length, 50 mm diameter 150 mm in length, 50 mm diameter
Largest Sample Size Unlimited Unlimited Unlimited
Standards ASTM D5334-14 ASTM D5334-14, IEEE 442-1981 ASTM D5334-14, IEEE 442-2017
tls 100mm vCp TLS-100 – vCp
Materials Soils, Pastes, Powders, and Solids
Measurement Capabilities Bulk Properties
Thermal Conductivity 0.1 to 5 W/m•K
Reproducibility ± 2%
Accuracy ± 5%
Thermal Diffusivity 0.05 to 1.5 mm2/s
Accuracy ± 10%
Volumetric Specific Heat Up to 2.5 MJ/m3K
Accuracy ± 15%
Temperature Range -40 to 100°C
Minimum Sample Size 100 mm in length, 50 mm diameter
Largest Sample Size Unlimited
Standards ASTM D5334-14

THW Specifications

THW-L3

THW-L3 sensor

THW-S

THW-S sensor

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

TPS-EFF Specifications

TPS-EFF

TPS-EFF 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

THW-L3

THW-L3

TLS 50 Mm

tls 50mm

TLS 100 Mm

TLS 100

TLS 150 Mm

tls 150mm

Method Transient Hot Wire – Liquids Transient Line Source Transient Line Source Transient Line Source
Measurement Range 0.01 to 1 W/m•K
Thermal Conductivity
0.3 to 5 W/m•K
Thermal Conductivity
0.1 to 5 W/m•K
Thermal Conductivity
0.1 to 3 W/m•K
Thermal Conductivity
Temperature Range 10 to 40°C -40 to 100°C -40 to 100°C -40 to 100°C
Accuracy ± 5% ± 5% ± 5% ± 5%
TLS 100 Mm – VCp

tls 100mm vCp

THW-S

THW-S

TPS-EFF

TPS-EFF

Method Transient Line Source Transient Hot Wire – Solids Transient Plane Source
Measurement Range 0.1 to 5 W/m•K
Thermal Conductivity
0.01 to 2 W/m•K
Thermal Conductivity
35 to 1700 W√s/m2K
Thermal Effusivity
Temperature Range -40 to 100°C 10 to 40°C -10 to 50°C
Accuracy ± 5% ± 5% ± 5%

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