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The wood moisture must not be confused with the water content. The water content is
the water mass related to the total mass of fuel and water (wet basis).
𝑤
=
𝑚
𝑤
𝑚
𝐵
+
𝑚
𝑤
∙
100 %
Equation 2
Explanation:
m = water content
m
w
= water mass bound to wood
m
b
= absolute dry fuel mass
The wood moisture can be converted to the water content as follows:
𝑤
=
𝑢
1+𝑢
∙
100%
Equation 3
Explanation:
w
= water content
u = wood moisture
8.3.2 Connecting the Probe
Fig. 39: Connectors for the wood mois-
ture probe at the bottom of the analyzer
•
Plug the connectors of the Wood Moisture
Probe Wöhler A 550 or the Wood Moisture
Probe Wöhler HBF 420 to the female con-
nector at the bottom of the analyzer.
Fig. 40: Wood moisture measurement
with Probe Wöhler HBF 420.
NOTE!
The result of the resistance measurement will be
more exact, if the large wood moisture probe
Wöhler HBF 420 is used, because the needles of
the probe can be inserted more deeply into the
wood.
8.3.3 Measuring
•
In the main menu, click on the “Wood mois-
ture” icon.
The analyzer will enter the wood moisture screen.
