Dickey-John C-2000 Посібник - Сторінка 9
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Read button
C-2000 Cotton Moisture Meter
11001-1356-200511
Tests made on seed cotton may not be as accurate as those made on lint
cotton. This is due to the fact that the seed cotton sample is obviously made
up of lint and seed, and the quantity of seed may vary from sample to
sample. Also, the moisture content of the seed is usually higher than that of
the lint.
When testing seed cotton, direct contact is still made with the cotton fiber
only and not with the seed of the sample. Variables in quantities and
moisture content of the seed, during calibration and in field tests, may affect
the accuracy and repeatability of the meter readings. The seed cotton scale
gives an indication of total moisture content (the moisture content of the
seed and the lint in a sample as determined by oven tests) in the seed
cotton sample. This may be of interest only in buying and selling seed
cotton where some consideration may be given to the weight relationship
between moisture content and dry matter.
TESTING BALED COTTON
Slide the plastic spacer over the 467912010 contact pins from the bottom of
the pins. Mount the pins in the chucks and tighten the set screws. (The
467912010 contact pins are not inserted into the chucks for shipping
purposes.)
Attach the Type 467912010 Electrode to the connector on top of the meter.
Set the scale to LINT COTTON and select a set-point. Insert the electrode
pins into the bale and press the Read button. Place the pin spacers near
the tips of the pins when contact is first made with the bale. This helps to
keep the pins parallel as they are forced into the bale.
The 467912010 contact pins are insulated, except for 1-3/4" at the tip. The
insulation helps to identify the area of moisture, since the reading is
obtained from the tip of the pin. Keeping track of moisture readings as the
pins are pushed into the bale will give an idea of the uniformity of moisture
distribution in the bale. Higher moisture readings near the surface are an
indication that the cotton has been exposed to higher moisture after baling.
The Dj C-2000 provides accurate results on normally compressed bales. If
the bale is loosely packed, the meter will read lower than the actual
moisture content. If the bale is very tightly packed, the readings will be only
slightly higher than normal, and as a rule, no correction needs to be made.
Well-conditioned material will provide uniform readings. However, material
that is baled before it is dry will show a wide range of moisture content.
Several tests should be performed on each bale, and the average and
highest readings should be noted.
TESTING YARN
Connect the 467912020 Multi-Pin Electrode to the connector on top of the
meter. Set the scale to LINT COTTON and select a set-point. Insert the
electrode pins into the yarn and press the Read button.
OPERATION 7