8
OPERATION
Follow the steps below to set up the VARIOS Standalone Configuration:
1. Place the soil sample directly on top of the VARIOS (
).
2. Connect the VARIOS to the VARIOS USB adapter.
NOTE: Make sure that the VARIOS connecting cable is not under any tension or touching anything that may
influence the accurate weight data.
3. Open LABROS SoilView software.
Make sure the VARIOS is connected and that all connected devices are shown in a device
tree on the left side of the SoilView software screen.
Make sure that the devices stay connected during measurement.
VARIOS
connecting cable
VARIOS
USB adapter
Power supply cable
VARIOS
VARIOS
USB adapter
VARIOS
USB adapter
USB cable
Sensor
Sensor
cable
Figure 4 VARIOS Standalone setup with USB adapter for taking thermal conductivity measurement
2.4 PREPARE SOIL SAMPLE
There are two methods for preparing a soil sample to measure the thermal conductivity
using the VARIOS.
In both cases, it is important that the sample ring is full and the soil surface is flush (planar)
with the top and bottom of the sample ring. All calculations are based on the exact volume of
the sample ring.
A serial number is laser etched on the sample ring so it can be assigned to the respective
measurement. In addition, the weight, measured to one decimal place exactly, is laser etched
on the sample ring and represents the precise tare weight in the evaluation when using the
VARIOS dryout configuration.
