Description
TPSYS20 is a user friendly system for the measurement of thermal conductivity using TP02 or TP08 thermal needle probes. The system is designed for high-accuracy measurements. It is particularly suitable for analysis of soils, thermal backfill materials, sediments, foodstuff, sludges, paints, glues and highly viscous fluids. The TPSYS20 thermal needle probe system is particularly suitable for thermal conductivity measurements in a laboratory environment.
The measurement principle is the transient line source technique, in which the thermal conductivity of a specimen is determined from the step response of the specimen temperature to heat from a linear heater. For details on TP02 or TP08, see the separate brochures. The MCU takes care of the measurement and control process and provides a convenient graphical user interface in the form of a web page.
TP08 is a shorter needle, which makes it an excellent alternative when only small amounts of sample material are available. TP08 does not have a reference temperature junction. For more details see the TP08 brochure.
TPSYS20 is primarily intended for laboratory use. For outdoor soil measurements Hukseflux recommends consulting the brochures of the more robust albeit less accurate FTN, MTN and TNS systems designed for outdoor use.
- CRC01 – calibration reference cylinder for TP02 and TP08
- GT01 – a spare set of 5 guiding tubes for TP08
- GT02 – a spare set of 5 guiding tubes for TP02
- CR1000KD – Campbell Scientific CR1000 keyboard display for controlling TPSYS20 MCU without a PC
- TP02 – a spare thermal needle probe
- TP08 – a spare thermal needle probe
Suggested Use
Thermal needle probe systems are particularly suitable for measuring the thermal conductivity of fine granular materials, powders, pastes, gels and highly viscous fluids in which a needle probe can be easily inserted. Harder materials such as rocks may also be measured provided that a hole can be drilled to insert the probe. Examples of typical specimen materials include soils, thermal backfill materials, sediments, foodstuff, sludges, paints and glues.
Areas of Application
- Geotechnics / soil thermal route analysis
- Material characterisation / thermal conductivity measurement
Specifications
| Measurand | thermal conductivity, thermal resistivity |
|---|---|
| Measurement range | 0.1 to 6 W/(m·K) |
| TPSYS20 specifications | : |
| Measurement uncertainty (depends on material type) | ± (3 % + 0.02 W/(m·K)) (k = 2) |
| Measurement duration (typical) | 3 to 10 minutes |
| Test methods | ASTM D5334 – 14; IEEE 442-2017; ASTM D5930 – 17 |
| Probe supplied | TP02 or TP08 |
| Heating cycle duration | 200 s (typical) |
| Operating modes | • heating measurement only • heating and cooldown measurement |
| Rated operating temperature range | -55 to + 180 °C |
| Needle length TP02 | 150 mm |
| Needle length TP08 | 70 mm |
| Connection | to local area network (LAN) via Ethernet or directly to PC via USB |
| Graphical user interface | web page (via MCU) |
| Supported web browsers | Chrome 10; Firefox 4; Internet Explorer 9; Opera 11; Safari 5; or later |
| Rated operating voltage MCU | 10 to 16 VDC |
| Rated operating temperature range MCU | -25 to +50 °C |
| Sampling rate | 2 Hz |
| Input | 100 to 240 VAC 50/60 Hz |
| Input plug | Type A/B (USA); Type C/F (EU); Type G (UK); Type I (AU) |
| Output | 12 VDC 2.5 A |
| IP protection class | IP40 |
| Options | TPSYS20-02, TPSYS20 with TP02 probe TPSYS20-08, TPSYS20 with TP08 probe |
Frequently asked questions
How do I choose the right instrument for measuring thermal properties?
Hukseflux offers a wide range of products for material characterization and measurement of thermal conductivity.
We can offer assistance in choosing the right instrument. But first, you should ask yourself the following questions:
- what material should be analyzed?
- what are the conditions, for instance concerning temperature and pressure?
- what specimens are available?
- are there standards for my application?
- what level of accuracy do I need?
Hukseflux is a leading manufacturer of thermal conductivity measuring systems and sensors. We have prepared a guide which may assist you in choosing the proper instrument for measuring thermal properties of your material, whether it is soil, plastics, paints, composites, pastes and fluids.
Hukseflux is able to offer highest quality products at an acceptable price level. If we cannot offer you an acceptable solution ourselves, we will tell you who can. Please contact us for further assistance.
Where are the sensors (needle, probe, meter) for measuring thermal conductivity?
Hukseflux sells a range of complete measuring systems including sensors and Measurement and Control Units (MCU). We offer systems and needle type thermal properties sensors for use in the field and for use in laboratory environments.
These thermal properties sensors, TP02 and TP08, are also available as separate probes for use with the user’s own electronics, for instance Campbell Scientific CR1000.
Cannot find what you are looking for? Please contact us.
Can I get training or a rental system for the thermal conductivity measuring instrument of my choice?
Expert training for system operators
Although in general the systems can be operated by following manuals and standards, we can provide you with expert training. Training vastly improves the level of service to the third party, the efficiency of working with the equipment and reduces the uncertainty of the end result.
Equipment rental
Unfortunately we have discontinued our rental services for all systems.
