MO220 Datasheet, PDF (13/15 Pages) Extech Instruments Corporation. – Moisture Meter

Wood Type
Grp
Terminalia
superba
A
Thuja
plicata
C
Tujopsis
dolabrat
J
Tieghamella
heckelii
B
Tilia
anericana
G
Tilia
vulgaris
E
Triploehiton
scleroxylon
G
Tsuga
heterophylia
C
Ulmus
amercana
E
Ulmus
procea
E
Ulmus
thomasii
E
Xylia
dolabriformis
E
Zelkova
serrata
B
NOTES:
The calibration data in this table are based on standard tests by oven-drying of
commercial samples of the various wood species, between 7% and fibre saturation.
Above the fibre saturation point (25%-30%) readings are approximate and generally
apply to wood that has been dried and re-wetted.
The instrument is calibrated for wood at 68°F (20°C). If the temperature of wood
varies by more than 5°C, the meter reading can be corrected approximately by
adding 1/2% for every 9F (5°C) below 68°F (20°C) or subtracting 1/2% for every 9F
(5°C) above 68°F (20°C).
Readings higher by 1%-2% may be obtained where wood has been impregnated
with a water-borne preservative.
High readings obtained with some ply-woods of peculiar composition must be
treated with caution.
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Model MO220 V1.1 10/07