Dickey-John Dj F-2000 Panduan Operator - Halaman 12

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Halaman Cetak
OPERATOR'S MANUAL
10 FACTORS AFFECTING READINGS

HAY TEMPERATURE

The Dj F-2000 has been calibrated at 80
types of hay (mainly alfalfa) and on different cuttings and mixtures. The
higher the temperature of the sample, the higher the meter readings will be.
Temperatures lower than 80
is approximately 1% point for every 20
Hay Temperature
O
O
20
F/-7
C
O
O
40
F/5
C
O
O
60
F/15
C
O
O
80
F/30
C
O
O
100
F/40
C
O
O
120
F/50
C
O
O
140
F/60
C
Example:
Meter Reading:
Temperature:
Moisture Content:

RANGE OF MOISTURE CONTENT

The Dj F-2000 is designed to test moisture in hay over a range of 6-40%.
Readings over 30% should be used only as a qualitative indication of high
moisture content. DICKEY-john moisture meters use the relationship
existing between electrical conductivity and moisture content in hay. As
moisture content increases, so does the conductivity.
Tests on hay at high moisture content, over 25%, are less accurate. This is
primarily due to the variability in moisture distribution. The reduced level of
accuracy in the high range does not significantly affect the usefulness of the
meter, as a high reading indicates that some action be taken to dry the hay
to avoid spoilage or even self-combustion.
While it is important to note the average of several readings, it is even more
important to note the high readings and the frequency at which they occur.
O
F on various samples of different
F cause lower meter readings. The correction
O
O
F difference.
Add To Reading
Subtract From Reading
3
--
2
--
1
--
0
0
--
1
--
2
--
3
22%
40
O
F/5
O
C
24% (22 + 2)
Dj F-2000 Hay Moisture Meter
11001-1355-200511