TLS Thermal Conductivity Meter

The Transient Line Source (TLS) Thermal Conductivity Meter is an advanced meter capable of testing soils and rock. The TLS follows ASTM D 5334 and IEEE Standard 442-1981.

TLS can use two different probe types: full-space probes that are fully inserted into the sample and half-space probes that are put on top. Both probe types have a rugged design, cover a wide measuring range and can be used for a great variety of sample materials and sizes. An additional field probe for in-situ testing is available.


TLS THERMAL CONDUCTIVITY METER SPECIFICATIONS

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MaterialsSoils & Rock
Thermal Conductivity0.1 to 10 W/mK
Measurement Time80 sec
Reproducibility+/-1.5%
Accuracy+/-2%
Temperature Range-0 to 70°C / -25 to 125°C
Power Requirements115 V
Surface Sensor Smallest Sample Dimensionsdiameter: approx. 50 mm, height: approx. 15 mm
Needle Sensor Smallest Sample Sizediameter: approx. 30 mm, length: 75 mm
Maximum Sample SizeNone
Meets ASTM D5334 & IEEE 442-1981


Information Links:

- TLS Brochure
- How it Works
- Glossary





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