geo-FENNEL FHM 20 Mode D'emploi page 18

EN
Tallowwood
Teak
Totara
Turpentine
Utile J
NOTES
The calibration scale is based on standard tests made with oven-dried samples of the various wood
species (between 7% and fibre saturation). Beyond the fibre saturation point (25 % to 30 %) the rea-
dings are approximate only and generally apply to wood that has been dried and re-wetted.
The instrument is calibrated for wood at 20°C. If the temperature of the wood to be measured varies by
more than 5°C, the meter reading can be manually corrected, as follows:
The manual correction of the reading if the wood to be measured is above 20°C:
- 0.5 % moisture content for each 5°C difference.
The manual correction of the reading if the wood to be measured is below 20°C:
+ 0.5 % moisture content for each 5°C difference.
If the wood has been impregnated with a water-borne preservative readings obtained may be higher by
1 to 2 %.
MEASUREMENT OF BUILDING MATERIALS
Select scale / group A, carry out the measurement and read the value measured on the display.
18
FHM 20_Korr_12_2014.indd 18
A Walnut, African
F Walnut, American
E Walnut, European
C Walnut, New Guinea
Walnut, Queensland
Wawa
J
Wandoo
Whitewood
Yew
J
A
C
B
C
G
J
C
C
10.12.2014 15:27:05