Major tech MT960 사용 설명서 - 페이지 6
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7. CALIBRATION CHECK
There are two checked calibration in the cap of the instrument. Use the
needle touch the two poles of calibration cap. 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 is over +/-1 the
instrument can't accurately measure the moisture of timber, then open
the back cover, adjust the rheostat to adjust the tolerance to meet the
range.)
8. CARE AND MAINTENANCE
When the instrument is not in use, keep it in its pouch together with its
accessories. Store the kit in a stable, dust-free environment out of direct
sunlight. Remove the batteries from the instrument if it is to be stored for
periods of more than one month, or when the low battery power symbol
appears on the display. Check the condition of accessories used with the
instrument on a regular basis and replace them if they become worn or
damaged.
9. CALIBRATION TABLES FOR WOOD
9.1. Timber Species Group Table
Common names of timbers as BS888&589:1973
Abura
Afara
Aformosa
Afzelia
Agba
Amboyna
Ash, American
Ash, European
Ash, Japanese
Ayan
Baguacu, Brazilian
Balsa
Banga Wanga
Basswood
Beech, European
Berlina
Binvang
Birch, European
6
E
Birch, Yellow
A
Bisselon
G
Bitterwood
E
Blackbutt
J
Bosquiea
G
Boxwood, Maracaibo
B
Camphorwood, E African
A
Canarium, African
A
Cedar, Japanese
C
Cedar, West Indian
F
Cedar, Western Red
A
Cherry, European
A
Chestnut
G
Coachwood
C
Cordia, American Light
B
Cypress, E African
E
Cypress, Japanese (8-18%mc)
J
Cypress, Japanese (18-28%mc) C
A
E
F
C
A
A
C
B
B
J
C
J
C
G
F
A
J