LIMITED TIME OFFER: Get a Free MTPS Sensor with Your MP Series Purchase – Offer Ends August 31, 2025!
An economical meter with a unique selection of transient thermal conductivity sensors for a variety of applications, with a focus on primary measurements.
The MP-2 is an economical meter with a unique selection of transient thermal conductivity sensors for a variety of applications, with a focus on primary measurements.
The controller auto-detects the connected sensor and loads corresponding testing parameters. Measurements are easily performed with the smart on-board software and can be transferred to a computer with the included data utility program.
SENSORS | MATERIALS |
|---|---|
MTPS | Solids, pastes and powders |
THW | Liquids |
TLS 50 mm | Concrete, rock and polymers |
TLS 100 mm | Soils and polymers |
TLS 150 mm | Soils and polymers |
TPS-EFF | Fabrics and solids |
For convenience, the auto-testing function can be setup directly on the controller or on a computer. Additional 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 showcase power status and testing progress.
Modified Transient Plane Source (MTPS) sensor: For testing the thermal conductivity of solids, pastes, and powders. Only one sample piece is needed for this asymmetric (single-sided) sensor.
Materials | Solids, pastes and powders |
Thermal conductivity (W/m·K) | 0.029 to 20 |
Sample size (mm | mL) | 25 diameter or square |
Largest sample size | Unlimited |
Test time (seconds) | 10, 20, and 40 |
Accuracy (Thermal conductivity) | 5% |
Repeatability (Thermal conductivity) | 2% |
Temperature range (°C) | 0 to 80 |
Moisture range | N/A |
Standards | N/A |
TLS 50mm: For testing conrete, rock and polymers. This sensor can be used on any sample size.
TLS 100mm: For use on soils and polymers. This sensor conforms to industry standards and can be used on any sample size following ASTM D5334-22a.
TLS 150mm: For testing soils and polymers. This sensor can be used on any sample size while conforming to industry standards following ASTM D5334-22a and IEEE 442-2017.
TLS 50mm | TLS 100mm | TLS 150mm | |
|---|---|---|---|
Materials | Concrete, rock and polymers | Soils and polymers | Soils and polymers |
Thermal conductivity (W/m·K) | 0.3 to 5 | 0.1 to 5 | 0.1 to 3 |
Thermal resistivity (mK/W) | 0.2 to 3.3 | 0.2 to 10 | 0.3 to 10 |
Sample size (mm | mL) | 50 length, 50 diameter | 100 length, 50 diameter | 150 length, 50 diameter |
Largest sample size | Unlimited | Unlimited | Unlimited |
Test time (seconds) | 180 | 180 | 180 |
Accuracy (Thermal conductivity) | 5% | 5% | 5% |
Repeatability (Thermal conductivity) | 2% | 2% | 2% |
Temperature range (°C) | -40 to 100°C | -40 to 100°C | -40 to 100°C |
Standards | N/A | ASTM D5334-22a, IEEE 442-1981 | ASTM D5334-22a, IEEE 442-2017 |
Transient Hot Wire (THW): For testing the thermal conductivity of liquids following ASTM D7896-19.
THW-L3 | |
|---|---|
Materials | Liquids |
Thermal conductivity (W/m·K) | 0.01 to 1 |
Sample size (mm | mL) | 15 mL |
Largest sample size | Unlimited |
Test time (seconds) | 1 |
Accuracy (Thermal conductivity) | 5% |
Repeatability (Thermal conductivity) | 2% |
Temperature range (°C) | 0 to 80 |
Standards | ASTM D7896-19 |
Transient Plane Source (TPS-EFF): For testing warmth or coolness of fabrics and textiles. Conforms to industry standards following ASTM D7894-16.
TPS-EFF | |
|---|---|
Materials | Fabrics and solids |
Thermal effusivity (W√s/m²K) | 35 to 1700 |
Sample size (mm | mL) | 30 diameter |
Largest sample size | Unlimited |
Test time (seconds) | 2 and 10 |
Accuracy (Thermal conductivity) | 5% |
Repeatability (Thermal conductivity) | 2% |
Temperature range (°C) | -10 to 50 |
Moisture range | 0 to 90% (non-condensing) |
Standard | ASTM D7984 |
|
|
| | |
|---|---|---|---|---|
Models | ||||
Thermal Conductivity | 0.005 to 2000 W/m•K | 0.01 to 500 W/m•K | 0.03 to 70 W/m•K | 0.029 to 20 W/m•K |
Additional Properties | Thermal Diffusivity, specific heat, thermal effusivity, and thermal contact resistance | Thermal diffusivity, specific heat and thermal effusivity | Thermal diffusivity and specific heat | N/A |
Measurement Time | 0.25 to 2560 seconds | 2 to 160 seconds | 10 to 160 seconds | 10, 20 and 40 seconds |
Sample Size* | 5 diameter or square to unlimited | 10 diameter or square to unlimited | 40 diameter x 5 length to unlimited | 25 diameter or square to unlimited |
Reproducibility | 1% | 2% | 2% | 2% |
Accuracy | 3% | 5% | 5% | 5% |
Temperature Range | 0 to 300 °C -160 | -45 to 300 °C up to 750 / 1000 °C | 0 to 300 °C -75 to 300 °C | 10 to 80 °C | 0 to 80 °C |
Optional Sensors | THW, TLS, MTPS, THS | THW, TLS, MTPS | N/A | THW, TLS, TPS-EFF |
Standards | ISO 22007-2, ISO 22007-7, GB/T 32064 | ISO 22007-2, ISO 22007-7, GB/T 32064 | N/A | N/A |
iTransient Parameter Automation | Yes | Yes | N/A | N/A |
Single-Sided | Yes | Yes | MTPS (Ø 12.8 mm) | N/A | Yes |
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| |
|---|---|---|---|
Models | |||
Materials | Liquids and PCMs | Liquids and PCMs | Liquids |
Testing Modules | Bulk | Bulk | Bulk |
Other Materials | Solids with TPS | No | Solids with TPS, TLS |
Thermal Conductivity | 0.01 to 2 W/m•K | 0.01 to 2 W/m•K | 0.01 to 1 W/m•K |
Sample Size | 20 mL | 20 mL | 15 mL |
Additional Properties | Thermal Diffusivity and Specific Heat | Thermal Diffusivity and Specific Heat | No |
Temperature Range | 10 to 200 °C -40 to 200 °C -160 | -40 | 0 to 300 °C | 10 to 200 °C | -40 to 200 °C -160/-40/0 to 300 °C | 0 to 80 °C |
Pressure | Up to 35 bar* | Up to 35 bar* | Ambient |
Test Times | 1 second | 1 second | 1 second |
Data-Points | 400 points/second | 100 points/second | 60 points/second |
Thermal Conductivity Accuracy | 2 % | 2 % | 5 % |
Repeatability | 1 % | 1 % | 2 % |
Standards | ASTM D7896-19 | ASTM D7896-19 | ASTM D7896-19 |
External Cooling Apparatus Required | No | Yes* | No | Yes* | Yes |
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