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
Standard Test
Method
Primary Measurement
Sensors
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), and the temperature rise is recorded by monitoring the change in electrical resistance of the wire (TPS and THW) 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.
SENSORS | MATERIALS |
---|---|
TPS-4 | Solids, Pastes and Powders |
THW-L3 | Liquids and Pastes |
TLS 50 mm | Rock and Concrete |
TLS 100 mm | Soils and Polymers |
TLS 150 mm | Soils and Polymers |
TLS 100 mm – vCp | Soils and Polymers |
THW-S | Insulation and Soft Materials |
TPS-EFF | Textiles and Fabrics |
Transient Plane Source (TPS-4): For testing the thermal conductivity of solids, powders and paste. Only one sample piece of needed for this asymmetric (Single-sided) Sensor.
Materials | Polymers and Composites |
Measurement Capabilities | Bulk Properties |
Thermal Conductivity | 0.03 to 5 W/m•K |
Measurement Time | 10 and 20 seconds |
Reproducibility | ± 2% |
Accuracy | ± 5% |
Temperature Range | 10 to 40°C |
Minimum Sample Size | 35 mm diameter or square |
Maximum Sample Size | Unlimited |
Sensor Diameter | 12.8 mm Diameter |
Test Method | Transient Plane Source (TPS) |
Transient Hot Wire (THW-L3): for testing the thermal conductivity of liquids, paste and powders.
THW-L3 |
THW-S |
|
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 |
Applications | THW-L3 Applications | THW-S Applications |
Transient Line Source (TLS): For testing soil, rocks and concrete
TLS 50mm |
TLS 100mm |
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 | Modified ASTM D5334 | ASTM D5334, IEEE 442-1981 | ASTM D5334, IEEE 442-2017 |
Applications | TLS 50mm Applications | TLS 100mm Applications | TLS 150mm Applications |
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 |
Applications | TLS 100mm – vCp Applications |
Transient Plane Source (TPS-EFF) : For testing the sensor of coolness or warmth of fabrics and textiles.
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 |
Test Method | Transient Plane Source (TPS) |
Standards | ASTM D7984-16 |
Applications | TPS-EFF Applications |
TPS-4 |
THW-L3 |
TLS 50 mm |
TLS 100 mm |
|
Method | Transient Plane Source | Transient Hot Wire – Liquids | Transient Line Source | Transient Line Source |
Measurement Range | 0.03 to 5 W/m•K Thermal Conductivity |
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 |
Temperature Range | 10 to 40°C | 10 to 40°C | -40 to 100°C | -40 to 100°C |
Accuracy | ± 5% | ± 5% | ± 5% | ± 5% |
TLS 150 mm |
TLS 100 mm – vCp |
THW-S |
TPS-EFF |
|
Method | Transient Line Source | Transient Line Source | Transient Hot Wire – Solids | Transient Plane Source |
Measurement Range | 0.1 to 3 W/m•K Thermal Conductivity |
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 | -40 to 100°C | 10 to 40°C | -10 to 50°C |
Accuracy | ± 5% | ± 5% | ± 5% | ± 5% |
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