For testing the extreme

In addition, the TPS 3500 is a general-purpose R&D instrument capable of analysing thermal transport properties of any kind of solid or liquid. Solids suitable for testing with a TPS 3500 can be dense, porous or in powder form, isotropic or anisotropic, conducting or insulating, transparent or opaque. Liquids can be thick and sticky, low viscosity solvents or anything in between.

As a badge of reliability the new TPS 3500 meets ISO 22007-2 and utilizes Hot Disk’s classic double spiral sensors for maximum accuracy. All this is achieved without the use of contact fluids, light-absorbing sample surfaces or fixed sample geometries.

Each Hot Disk TPS 3500 is tailored according to application specifications and can be paired with a selection of temperature control accessories. To guarantee best possible performance, the controlling software is continuously updated and improved. Most accessories are also available for rapid acquisition.

Key Features

Sensors: The TPS 3500 operates a wide variety of Hot Disk® sensors. With sensor radius from 0.5 mm up to 30 mm the instrument is suitable for all kinds of materials and applications. Multiple sensors can be connected using an automatic sensor switcher. With sensor radius from 0.5 mm up to 30 mm the instrument is suitable for all kinds of materials and applications.

Temperature Control: Automatic Temperature series measurements (Isothermal Steps) are easy to perform using either an optional external Furnace or a temperature-controlled Bath Circulator. These external devices can be directly controlled through the Hot Disk Thermal Analyser software to ensure ease of use.

Everything to get you started: The basic TPS 3500 setup includes everything you need to begin making measurements. The system includes: Hot Disk TPS 3500 instrument; Isotropic, One-dimensional and Structural Probe measurement modules; a Sensor; Insulating Support-Material for Single-Sided testing; Stainless Steel Verification Samples and Room-Temperature Sample Holder.

Optional Software Modules: In addition to the standard Isotropic, One-Dimensional and Structural Probe modules, optional software modules for Slab, Thin Film, Anisotropic, Specific Heat Capacity and Low-Density, Highly-Insulating samples are available.

TPS 3500 Specifications¹

Measurement

Sample Types	Bulks, rods, slabs, wafers, sheets, foils, films, laminates, composites, minerals, batteries, textiles, pellets, granules, beads, grains, powders, pastes, creams, gels, liquids, foams and insulators.
Evaluation
Anisotropy	Yes, both 2D anisotropic (uniaxial) materials and 3D anisotropic (biaxial) materials can be characterised, using optional Anisotropic Measurement Module.
One-Dimensional	Yes, axial estimations possible for a complex sample configuration.
Sample Dimensions
Smallest	Bulk sample: 0.5 mm thick x 2 mm wide (circle or square).
	Rod sample: 5 mm long x 2.5 mm wide (circle or square).
	Slab sample: 42 μm thick x 8 mm wide (circle or square).
	Thin film sample: 10 μm thick x 22 mm wide (circle or square).
Largest	Bulk sample: unlimited.
	Rod sample: unlimited length x 60 mm wide (circle or square).
	Slab sample: 20 mm thick x unlimited wide (circle or square).
	Thin Film sample: 500 μm thick x unlimited wide (circle or square).
Sample Temperature Range	-253°C (20 K) to 1000°C.
Core Instrument	RT.
With Optional TCU	Cryostat: -195°C (78 K) to RT.
	Low-to-High Temperature Chamber: -60°C to 300°C.
	Bath Circulator: -40°C to 200°C.
	Convection Oven: RT to 600°C.
	Muffle Furnace: RT to 800°C.
	Tubular Furnace: RT to 1000°C (gas purging for >400°C, and inert gas flow for >800°C is recommended).
Measurement Time2	0.1 to 2560 seconds (depending on sample material and sensor dimensions).
Measurement Range
Thermal Conductivity	Bulk sample: 0.005 to 500 W/m/K.
	Rod sample: 1 to 1800 W/m/K.
	Slab sample: 5 to 1800 W/m/K.
	Thin Film sample: 0.01 to 5 W/m/K.
Thermal Diffusivity	Bulk sample: 0.01 to 400 mm²/s.
	Rod sample: 1 to 1400 mm²/s.
	Slab sample: 5 to 1400 mm²/s.
	Thin Film sample: 0.02 to 2 mm²/s.
Thermal Effusivity	20 to 55000 W√s/m²/K.
Specific Heat Capacity	Up to 5 MJ/m³/K.
Measurement Accuracy
Thermal Conductivity	Better than 5%.
Thermal Diffusivity	Better than 10%.
Measurement Reproducibility3
Thermal Conductivity	Typically better than 2%.
Thermal Diffusivity	Typically better than 5%.
Measurement Repeatability4
Thermal Conductivity	Typically 0.11% (Stainless Steel bulk sample, Kapton-insulated Hot Disk® sensor model 5501, and 22°C sample temperature)
Thermal Diffusivity	Typically 0.44% (Stainless Steel bulk sample, Kapton-insulated Hot Disk® sensor model 5501, and 22°C sample temperature).
Measurement Sensitivity5
Temperature	Typically 43 μK (Stainless Steel sample, Kapton-insulated Hot Disk® sensor model 5501, and 22°C sample temperature).

General

Meets ISO Standard 22007-2	Yes.
Measurement Modules
Included	Isotropic, Single-Sided Testing, One-Dimensional, Structural Probe, and Automation.
Optional	Anisotropic, Slab, Thin Film, Low-Density/Highly Insulating, and Specific Heat Capacity.
Sensor Models
Hot Disk® sensor – Kapton-insulated	All models.
Hot Disk® sensor – Teflon-insulated	All models.
Hot Disk® sensor – Mica-insulated	All models.
Hot Strip® sensor – Kapton-insulated	All models.
Hot Cell® sensor – Cell size <250 mm	All models.
Hot Cell® sensor – Cell size >250 mm	Please inquire.
Instrument Environment
Operating	15°C to 30°C
Storage	−20°C to 45°C
Instrument Line Power
Supply Voltage	100 – 240 VAC, 50 – 60 Hz.
Power Consumption	70 W typical, 305 W maximum.
Instrument Warm-Up	2 hours to rated measurement performance.
Instrument Input and Output
Rear Panel	USB type B connector (female) for connectivity.
Front Panel	LEMO 8 pin connector (female) for Hot Disk®, Hot Strip® or Hot Cell® sensor.
	LEMO 4 pin connector (female) for optional PT100 temperature sensor.
Instrument Dimensions	325 mm high x 455 mm wide x 615 mm deep.
Instrument Weight	29 kg.
Instrument CE Marking	Yes.

1. Hot Disk AB reserves the right to make changes without prior notice, whether due to misprints, improved hardware, or extended software capabilities.↩︎
2. Time of transient temperature reading. An additional temperature settling time that depends on the sample material and TCU (if applied) is required to ensure isothermal condition before the reading.↩︎
3. Comparing measurements performed by different instrument set-ups.↩︎
4. Variation in consecutive measurements performed by a single instrument set-up. Note that this value depends on sample material, sensor model, and sample temperature.↩︎
5. Standard deviation in fitting ∆Τ(τ)-function to the transient temperature reading. Note that this value depends on sample material, sensor model, sample temperature, and can vary considerably.↩︎

TPS 3500 Measurement Demonstration

Stainless Steel

Sample
Material	Stainless Steel, AISI 316/316L.
Type	Bulk.
Temperature	21°C.
Measurement Parameters
Measurement Module	Isotropic.
Sensor Model	Kapton-insulated Hot Disk® sensor 5501 (radius 6.4 mm).
Measurement Time	10 s.
Heating Power	800 mW.
Measurement Results
Data Points	13-200.
Thermal Conductivity	13.67 W/m/K.
Thermal Diffusivity	3.647 mm²/s.
Specific Heat Capacity	3.748 MJ/m³/K.
Probing Depth	12.1 mm.
Temperature Increase	0.5098 K.
Standard Deviation in Fitting ∆Τ(τ)	31 μK.

Included with the TPS 3500 Instrument

Basic Option:

• 5 x Measurement Modules: Isotropic, Single-Sided Testing, One-Dimensional, Structural Probe, and Automation.
• 1 x Kapton-insulated Hot Disk® or Hot Strip® sensor: Model free of choice, with cable.

Regular Complete Option:

• 9 x Measurement Modules: Isotropic, Anisotropic, Single-Sided Testing, Slab, Thin Film, One-Dimensional, Specific Heat Capacity, Structural Probe, and Automation.
• 10 x Kapton-insulated Hot Disk® or Hot Strip® sensors: Models free of choice, with cable.

Extended Complete Option:

• 10 x Measurement Modules: Isotropic, Anisotropic, Single-Sided Testing, Slab, Thin Film, Low-Density/Highly Insulating, One-Dimensional, Specific Heat Capacity, Structural Probe, and Automation.
• 10 x Kapton-insulated Hot Disk® or Hot Strip® sensors: Models free of choice, with cable.

Always included:

• Hot Disk® Desktop App software (latest version)
• 1 x Stainless Steel verification bulk sample.
• 1 x Single-sided background insulation (single-sided testing).
• 1 x Room temperature sample holder (protective hood included).
• Instructions manual.
• Instrument test protocol.
• Power supply cord and USB cable.