© PCE Instruments
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6.1.3
Use of insulated electrodes
Due to the severe influence of surface moisture and possible moisture differences across the
cross-section of the wood, only electrodes with intact insulation should be used. This ensures that
the wood moisture content can also be determined in deeper areas without falsifying the
measured values.
6.1.4
Measuring direction perpendicular to the wood fibre
Contrary to the recommendation of DIN EN 13183-1, it is recommended to place the electrodes
perpendicular to the fibre. This allows the meter to overmeasure fibre strands with different
moisture contents so that the measurement results are not negatively influenced.
6.1.5
Requirements for the measuring spot
Before the measurement, the measuring position must be visually inspected. The measuring
spot must be free of visible defects that could negatively influence the measurement, such as
cracks, bark, branches, resin pockets, wood preservatives, flame retardants or chemical
treatment agents.
6.1.6
Measuring distance and frequency
Preferably, the measurement should be made at a distance of approx. 30 cm from the end and
between the measuring spots of a sample. If the sample is smaller than 60 cm, measurements
are made in the middle of the sample. The following measurement frequency is required by DIN
EN 13183-2.
Number of samples to be tested
1
2
3
4
5
>5
Number of measurements per piece
3
3
2
2
2
1
The measuring positions should be selected randomly along the length with a minimum
distance of 30 cm to the front of the sample.
