Merlin HM9 Manuel D'utilisation page 88

Operation
The precision was optimised for the main ap-
plication range of 2 % to the fibre saturation
point for conditioned finished products.
With moisture values above the respective
fibre saturation point (max. measurement
range level), deviations from the dry method
can occur. Due to drying gradients (heavily
dried outer layer to high moisture content in
the core), these deviations may be significant-
ly large.
Grey measurements indicate that the current
wood moisture is outside of the approved
measuring range of the wood type.
(a)
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