For the small-scale lab

This economical instrument condenses the powerful TPS technology with elegant analysis software, arguably resulting in the simplest-to-use thermal conductivity testing apparatus on the market.

The TPS 500 measures the thermal transport properties of solids, pastes, gels and powders and encompasses similar accuracy and sample size flexibility as the benchmark TPS 2500 S and workhorse TPS 1500 (the latter two instruments are designed according to ISO 22007-2).

Hot Disk users now number over 600 world-wide. They appreciate the TPS technique for its unmatched measurement capability, together with its ease-of-use and simple sample preparation. The operative simplicity of the TPS 500 and the performance achieved when using Hot Disk sensors, makes the instrument uniquely suitable for QC testing.

The test & analysis software for the TPS 500 system incorporates tools for automated measurements as well as automatic temperature control of external devices. The software also incorporates tools for exporting results to third-party software (MS Excel), for additional processing or statistical analysis.


Thermal Conductivity 0.03 to 100 W/m/K.

5 to 200 W/m/K using slab or one-dimensional methods.*

Thermal Diffusivity 0.02 to 40 mm²/s.

2 to 100 mm²/s using slab or one-dimensional methods.*

Specific Heat Capacity Up to 5 MJ/m³K.
Measurement Time 2.5 to 2560 seconds.
Reproducibility 2 % (thermal conductivity).
10 % (thermal diffusivity, sensor radius 6.4 mm).
12 % (specific heat per unit volume, sensor radius 6.4 mm)
Accuracy Better than 5 % (thermal conductivity).
Temperature Range -100 °C to 200 (300*) °C.
Core Instrument Ambient
With Oven Up to 200 (300*) °C
With Circulator -35 °C to 200 °C.
Power Requirements Adjusted to the line voltage in the country of use.
Smallest Sample
3 mm × 13 mm diameter or square for bulk testing.

2 mm × 8 mm diameter or square for bulk testing.*

0.1 mm × 12 mm diameter or square for slab testing.*

0.01 mm × 22 mm diameter or square for thin-film testing.*

10 mm × 5 mm diameter or square for one-dimensional testing.*

Sensor Types Available Kapton sensors: 7577*, 5465, 5501.

Teflon sensors: 7577*, 5465, 5501.

Similar to ISO Standard 22007-2.

* Only valid for TPS 500 S