Probes

Technical Specification TK04

Probes

 Needle probes Standard VLQ 70: 70 mm needle probe for TK04 thermal conductivity meter Standard VLQ 60:  60 mm needle probe for TK04 thermal conductivity meter Mini VLQ: small needle probe for TK04 thermal conductivity meter Field VLQ: large needle probe for TK04 thermal conductivity meter
Name Standard VLQ 70
Standard VLQ 60
Mini VLQ Field VLQ
Probe type needle probe needle probe small needle probe large needle probe
Application laboratory use laboratory use laboratory use, small samples field use
Measuring range 0.1 - 10 W/mK 0.1 - 10 W/mK 0.3 - 6 W/mK 0.6 - 4 W/mK
Accuracy ± 2 % ± 2 % ± 5 % ± 5 %
Duration of 1 measurement 80 s 80 s 80 s 240 s
Diameter (needle) 2 mm 2 mm 2 mm 6 mm
Length (needle) 70 mm 60 mm 50 mm 300 mm
Dimensions (overall) length:160 mm, Ø: 16 mm (max) length:150 mm, Ø: 16 mm (max) length:140 mm, Ø: 16 mm (max) length: 420 mm, Ø: 42 mm (max, w/o connector)
Minimum sample size Ø: 40 mm *, length: 85mm * Ø: 40 mm *, length: 75mm * Ø: 40 mm *, length: 60mm *  
Sample shape any any any any
Maximum sample size no limit no limit no limit no limit
Sample temperature -25 to 125°C -25 to 125°C -25 to 125°C -25 to 50°C
Supplied parts probe, INI file, carrying case, protective cap, drill bits, data sheet probe, INI file, carrying case, protective cap, drill bits, data sheet probe, INI file, carrying case, protective cap, drill bits, data sheet probe, INI file, carrying case, protective cap, 5 guiding tubes, insertion tool, data sheet

 * Absolute minimum size, valid for low thermal conductivity materials. For higher thermal conductivities, larger samples are required.

Surface probes Standard HLQ: probe for plane surfaces for TK04 thermal conductivity meter Mini HLQ: small probe for plane surfaces for TK04 thermal conductivity meter
Name Standard HLQ Mini HLQ
Probe type probe for plane surfaces small probe for plane surfaces
Application laboratory use laboratory use, small samples
Measuring range 0.3 - 10 W/mK 0.3 - 3 W/mK
Accuracy ± 2 % ± 5 %
Duration of 1 measurement 80 s 60 s
Diameter (needle) 2 mm 2 mm
Length (needle) 70 mm 45 mm
Dimensions (overall) Ø: 88 mm, height: 30 mm (w/o connector) Ø: 50 mm, height: 30 mm (w/o connector)
Minimum sample size Ø: 90 mm *, height: 20 mm * Ø: 50 mm *, height: 20 mm *
Sample shape any any
Maximum sample size no limit ** no limit **
Sample temperature -25 to 70°C -25 to 70°C
Supplied parts probe, INI file, carrying case, data sheet 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.