Extech Instruments MO220, Руководство пользователя

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MO220 V1..2 4/10 13
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.