Accessories
Probes
General
For laboratory measurements, with few exceptions all probe types can be used for all sample materials in the measuring range of 0.1 to 10 W/mK. In most cases you can choose a probe by shape and size of the available sample pieces or by sample preparation possibilities. For in-situ tests always the Field VLQ should be used, the smaller laboratory probes are not adequate for this purpose.
We offer complete TK04 measuring kits (VLQ kit, HLQ kit or Complete kit with HLQ and VLQ probe), including all necessary hardware and software components. But all probes are available separately for replacing defect probes or for upgrading an existing TK04 system.
Standard VLQ
 Standard VLQ 70 / 60 for laboratory use (choose length according to sample size) |
Probe type | needle probe |
| Measuring range | 0.1 - 10 W/mK | |
| Accuracy | ± 2 % | |
| Duration of 1 measurement | 80 s | |
| Diameter (needle) | 2 mm | |
| Length (needle) | 70 mm (VLQ 70) / 60 mm (VLQ 60) | |
| Dimensions (overall) | length:160 mm (VLQ 70) / 150 mm (VLQ 60), Ø: 16 mm (max) | |
| Minimum sample size | Ø: 40 mm *, length: 85mm (VLQ 70) / 75 mm (VLQ 60) * | |
| Sample shape | any | |
| Maximum sample size | no limit | |
| Sample temperature | -25 to 125°C | |
| Supplied parts | probe, INI file, carrying case, protective cap, drill bits, data sheet |
* Absolute minimum size, valid for low thermal conductivity materials. For higher thermal conductivities, larger samples are required.
Technical specifications are subject to change without prior notice.
Mini VLQ
 Mini VLQ for laboratory use and small samples |
Probe type | small needle probe |
| Measuring range | 0.3 - 6 W/mK | |
| Accuracy | ± 2 % | |
| Duration of 1 measurement | 80 s | |
| Diameter (needle) | 2 mm | |
| Length (needle) | 50 mm | |
| Dimensions (overall) | length:140 mm, Ø: 16 mm (max) | |
| Minimum sample size | Ø: 40 mm *, length: 60mm * | |
| Sample shape | any | |
| Maximum sample size | no limit | |
| Sample temperature | -25 to 125°C | |
| Supplied parts | probe, INI file, carrying case, protective cap, drill bits, data sheet |
* Absolute minimum size, valid for low thermal conductivity materials. For higher thermal conductivities, larger samples are required.
Technical specifications are subject to change without prior notice.
Field VLQ
 Field VLQ for field use |
Probe type | large needle probe |
| Measuring range | 0.6 - 4 W/mK | |
| Accuracy | ± 5 % | |
| Duration of 1 measurement | 240 s | |
| Diameter (needle) | 6 mm | |
| Length (needle) | 300 mm | |
| Dimensions (overall) | length: 420 mm, Ø: 42 mm (max, w/o connector) | |
| Minimum sample size | ||
| Sample shape | any | |
| Maximum sample size | no limit | |
| Sample temperature | -25 to 50°C | |
| Supplied parts | probe, INI file, carrying case, protective cap, 5 guiding tubes, insertion tool, data sheet |
Technical specifications are subject to change without prior notice.
Standard HLQ
 Standard HLQ for laboratory use |
Probe type | probe for plane surfaces |
| Measuring range | 0.3 - 10 W/mK | |
| Accuracy | ± 2 % | |
| Duration of 1 measurement | 80 s | |
| Diameter (needle) | 2 mm | |
| Length (needle) | 70 mm | |
| Dimensions (overall) | Ø: 88 mm, height: 30 mm (w/o connector) | |
| Minimum sample size | Ø: 90 mm *, height: 20 mm * | |
| Sample shape | any | |
| Maximum sample size | no limit ** | |
| Sample temperature | -25 to 70°C | |
| Supplied parts | probe, INI file, carrying case, data sheet |
* Absolute minimum size, valid for low thermal conductivity materials. For higher thermal conductivities, larger samples are required.
** With pressure device: max. height 130 mm.
Technical specifications are subject to change without prior notice.
Mini HLQ
 Mini HLQ for laboratory use and small samples |
Probe type | small probe for plane surfaces |
| Measuring range | 0.3 - 3 W/mK | |
| Accuracy | ± 5 % | |
| Duration of 1 measurement | 60 s | |
| Diameter (needle) | 2.0 mm | |
| Length (needle) | 45 mm | |
| Dimensions (overall) | Ø: 50 mm, height: 30 mm (w/o connector) | |
| Minimum sample size | Ø: 50 mm *, height: 20 mm * | |
| Sample shape | any | |
| Maximum sample size | no limit ** | |
| Sample temperature | -25 to 70°C | |
| Supplied parts | probe, INI file, carrying case, data sheet |
* Absolute minimum size, valid for low thermal conductivity materials. For higher thermal conductivities, larger samples are required.
Technical specifications are subject to change without prior notice.
Options
General
Optional accessories are available to complete the TK04 measuring setup for particular sample types and measuring tasks.
When using a Standard or Mini HLQ the use of a lever press is recommended to ensure good contact between probe and sample by applying controlled contact pressure.
A sample container matching the diameter of the Standard HLQ probe is required for testing liquids, pastes, powder or fragments.
Guiding tubes provide fixed measuring positions for safely insert needle probes into hard samples or in the field.
Additional reference materials in different sizes serve to check the operating condition of instrument and probes.
Lever press
 Lever press with pressure limiter |
Application | ensures good contact between probes for plane surfaces (Standard HLQ, Mini HLQ) and samples by applying controlled pressure |
| Contact pressure | 0 to 10 bar/1.7 kN, stepless | |
| Dimensions | approx. 290 x 150 mm, height 420/575 mm (lever down/up) | |
| Weight | 12.9 kg | |
| Sample size | height max. 13 cm, other dimensions practically unlimited | |
| Supplied parts | lever press, screws, data sheet (delivered w/o sample and probe) |
Technical specifications are subject to change without prior notice.
Sample container
 Sample container |
Application | testing liquids, pastes, powder or fragments with the Standard HLQ |
| Dimensions | Ø 108 mm, height 81 mm (outer dimensions), inner diamater matching the Standard HLQ | |
| Weight | 1800 g | |
| Supplied parts | sample container, 2 handles for removing the probee |
Technical specifications are subject to change without prior notice.
Guiding tubes
|
Guiding tubes for Standard VLQ |
Guiding tubes for Field VLQ |
|
| Application | fixed measuring position for safe insertion of needle probes (Standard VLQ) into hardening samples (re-usable) | fixed measuring position for safe insertion of large needle probes (Field VLQ) in the field (re-usable) |
| Material | stainless steel V2A | stainless steel V2A |
| Outer diameter | 2.5 mm | 7 mm |
| Length | ca. 75 mm | ca. 320 mm |
| Supplied parts | 10 guiding tubes | 10 guiding tubes, insertion tool, case |
Technical specifications are subject to change without prior notice.
Reference materials
|
ST 1.6 for Standard VLQ |
ST 1.6 for Standard HLQ |
|
| Thermal conductivity * | 1.6 W/mK | 1.6 W/mK |
| Dimensions ** | 55 x 55 x 90 mm | 110 x 90 x 30 mm |
| Drill hole | Ø 2 mm | none |
| Physical properties | download datasheet | download datasheet |
| Supplied parts | Reference material, TC certificate | Reference material, TC certificate |
| Application | Checking the operating condition of instrument and probes. The user is not required to perform any calibration or reference measurements! | |
|
ST 1.6 for Standard Probes |
ST 0.2 for Standard VLQ |
|
| Thermal conductivity * | 1.6 W/mK | 0.2 W/mK |
| Dimensions ** | 110 x 90 x 55 mm | Ø 60 mm, height 90 mm |
| Drill hole | Ø 2 mm | Ø 2 mm |
| Physical properties | download datasheet | download datasheet |
| Supplied parts | Reference material, TC certificate | Reference material, TC certificate |
| Application | Checking the operating condition of instrument and probes. The user is not required to perform any calibration or reference measurements! | |
* The specified thermal conductivities are approximate values. Each reference block is calibrated individually before delivery and is labeled with its exact thermal conductivity value.
** Dimensions may vary slightly.
Technical specifications are subject to change without prior notice.