Delmhorst-instrument F-2000 Manuel d'utilisateur télécharger pdf (Page 11)

Hay Temperature

The F-2000 has been calibrated at 80°F on various samples

of different types of hay, mostly 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°F cause lower meter readings. The correction

is approximately 1% for every 20° difference. Refer to

chart below:

Hay temperature Add to reading Subtract from reading

20°F/-7°C 3 --

40°F/ 5°C 2 --

60°F/15°C 1 --

80°F/30°C 0 0

100°F/40°C -- 1

120°F/50°C -- 2

140°F/60°C -- 3

Example

Meter reading: 22%

Temperature: 40°F/5°C

Moisture Content: 24% (22 + 2)

Curing

Before proper curing has taken place, wide variations in

moisture content should be expected in both recently baled

hay and hay in the windrow. These variations will be exposed

by meter readings taken on different parts of the windrow or

bale. The higher the moisture range, the wider the

variations. The more curing has been allowed to take place,

the greater uniformity in moisture distribution can be

expected.

The validity of the meter readings is closely related to the

care spent in sampling the hay to be tested. Whether hay in

the windrow or baled hay is tested, the number of tests made

should be increased whenever the initial readings show

considerable variations.

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Delmhorst-instrument F-2000 Manuel d'utilisateur Page 11