VARIOS combines TEMPOS and HYPROP technologies to simultaneously measure the thermal conductivity and soil moisture content of the same soil sample. Easy to operate, simply insert the probe into a soil sample saturated with water and place it on the balance. As the moisture content of the soil sample continues to evaporate, VARIOS automatically performs hundreds of precise measurements of thermal conductivity, while the balance weighs it to calculate the moisture content of the sample. Powerful software can automatically complete all calculations, visualizations, and fitting, reducing the possibility of errors.

VARIOS was designed specifically for the 400 mile Suedlink underground cable laying project in Germany, and for this project, thousands of drying process thermal characteristic curves were measured. Through continuous practical testing in engineering, the characteristics of VARIOS design accuracy, reasonable price, and low maintenance cost have been verified.

VARIOS uses the transient line heat source method, which complies with IEEE 442-2017 and ASTM D5334 standards. This is a reliable measurement method with short heating time and low heating power. This method reduces water movement caused by heating and convection, and shortens measurement time. VARIOS can automatically correct temperature drift, and the heating power and duration can be optimized for specific materials and material characteristics. In addition, each drying process thermal characteristic curve has hundreds of data points, fully recording the details of changes during soil drying. VARIOS is a complete solution that integrates software and hardware, providing everything necessary for conducting thermal characteristic curve experiments during the drying process, including cables, installation tools, and software.

main features

Continuous and accurate weighing measurement enables the instrument to directly output thermal conductivity and moisture content curves

The accuracy of temperature measurement reaches ± 0.1 ℃, and the resolution reaches 0.01 ℃

Short heating phase, low heating power, reliable measurement

● Automatic temperature drift correction

● Able to define relevant parameters for specific usage scenarios

Heating power and time can be optimized according to specific materials/characteristics

● Two measurement modes: continuous measurement and point by point measurement

● Compact appearance saves space and facilitates measurement of small samples

● Flexible, durable, easy to operate, and cost-effective

● Automatic measurement, saving time and effort

● Integrated and user-friendly data acquisition and evaluation software

● Compliant with industry standards IEEE 442-2017 and ASTM D5334

Adjustable measurement ensures high measurement accuracy and wide applicability

● Can perform parallel weighing measurement

Technical Parameter

Computer compatibility: Windows 10 and above

Power supply: 12V/1A

Dimensions: Height 30mm, Width 185mm, Length 162mm

HYPROP balance

Range: 1800 g

Readability: 0.01 g

Repeatability: 0.01 g

Linearity: 0.01 g

Adjustable: Internal

Connect computer interface: USB

Following the standard: produced under the ISO 9001:2015 standard; EM ISO/IEC 17050:2010 (CE marking)

Origin and manufacturer: METER, Germany