Does temperature have an effect on the accuracy of the instrument readings?
How to correct readings for different types of wood?
Using needle and needle free moisture meters, the type of wood will affect the reading you obtain. For needle instruments, the difference in readings is due to the different inherent resistance characteristics of different types of wood. For needle less instruments, the specific gravity (SG) of wood will affect the reading results.
Each hygrometer is typically calibrated using a specific type of wood, such as Douglas fir or oak, which makes the instrument accurate when measuring that type of wood, but less accurate for other types of wood.
Usually, there are two methods to correct the reading of a given type of wood:
Use the species correction table provided by the instrument manufacturer.
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Use instruments with built-in species calibration.
Using instruments with built-in calibration functions is usually easier and faster than referring to manuals and performing mathematical calculations on your own.
