Code Description; Calibration Check - Dostmann HumidCheck PRO Mode D'emploi

5.5 Set-up Automatically Switch-off Time
Combinatorial using " " + " " button can change the default automatically switch-
off time. Depress the " " button don't release and press the " " button will change
automatically switch-off time (disable automatically switch-off or set from 1 to 9
minutes) by change the code as detailed in the following table.
Code Description
0 Disables automatic switch-off
1 Selects automatic switch-off at 1 minute
2 Selects automatic switch-off at 2 minutes
3 Selects automatic switch-off at 3 minutes
.... ......And so on to......
9 Selects automatic switch-off at 9 minutes

5.6 Calibration Check

There are two checked calibration in the cap of the instrument. Use the needle touch
the two poles of calibration. When checking the calibration, the A scale should be
selected and the temperature probe must be disconnected. Correctly calibrated the
instrument will register %H2O values in the range 17.7 to 18.3 (at the "T" calibration)
and in the range 25.5 to 26.5 (at "B" calibration). (If the tolerance overs+/-1 the
instrument can't accurately measure the moisture of timber, then open the back
cover, adjust the rheostat to make it tolerance meet the range.)
6. Calibration Tables for Wood
Table of wood species
General wood names gem. BS888 & 589: 1973
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 fibre saturation point (25%-30%) reading are approximate only
and generally apply to wood that has dried and been re-wetted.
The instrument is calibrated for wood at 20°C (68°F). If the temperature of wood
varies by more than 5°C, the meter reading can be corrected approximately by ad-
ding 1/2% for every 5°C below 20°C or subtracting 1/2% for every 5°C above 20°C.
Readings higher by 1%-2% may be obtained where wood has been impregnated
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with a water-borne preservative.
High readings obtain with some ply-woods of peculiar composition must be treated
with caution.
Abura E
Afara A
Aformosa G
Afzelia E
Agba J
Amboyna G
Ash, American B
Ash, European A
Ash, Japanese A
Ayan C
Baguacu, Brazilian F
Balsa A
Banga Wanga A
Basswood G
Beech, European C
Berlina B
Binvang E
Birch, European J
Birch, Yellow A
Bisselon E
Bitterwood F
Blackbutt C
Bosquiea A
Boxwood, Maracaibo A
Camphorwood, E African C
Canarium, African B
Cedar, Japanese B
Cedar, West Indian J
Cedar, Western Red C
Cherry, European J
Chestnut C
Coachwood G
Cordia, American Light F
Cypress, E African A
Cypress, Japanese (8-18%mc)
J
Cypress, Japanese (18-28%mc) C
Dahoma A
Danta
C
Douglas Fir B
Elm, Japanese Grey Bark B
Elm, English
E
Elm, Rock E
Elm, White E
Empress, Tree
J
Erimado F
Fir, Douglas B
Fir, Grand
A
Fir, Noble
J
Gegu, Nohor H
Greenheart
C
Guarea, Black
J
Guarea, White H
Gum, American Red
A
Gum, Saligna
B
Gum, Southern B
Gum, Spotted A
Gurjun
A
Hemlock, Western C
Hiba J
Hickory
F
Hyedunani B
Iroko F
Ironbank
B
Jarrah C
Jelutong C
Karpur
A
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