2
3.
To check the %MC of bales connect the 830-2 (10 in) or 830-5 (12 in)
prod to the H-4 handle. Connect the H-4 to the input connector marked
“electrode” on the meter. Force the probe into the bale and read the
moisture content on the meter scale. An optional electrode (30-E/C) with
two 9-1/2in insulated pins is also available.
ABOUT YOUR READINGS
Electrical meter readings provide very useful guidelines to the producer when
targeting the 8%-12% MC range for safe packaging and storage. The meter
indicates the moisture level in the hops that is in contact with the un-insulated tip
portion of the prod. Since moisture distribution usually varies in baled hops, an
average of several tests will give greater validity to the data collected. It is
important to pay particular attention to any high readings and the frequency at
which they occur. Keep in mind that a few wet spots in the bale may cause
considerable damage.
In an effort to minimize the effect of variability of moisture and possibly improve
meter accuracy, it may be desirable to grind material and take readings on
smaller samples. Use an ordinary household food chopper to grind and then stir
cone petals and strigs for testing in a small container or bucket. The no. 831
short pin prod (with H-4 handle) or the 37-E/C multi-pin electrode can be used for
this purpose.
Meter readings are affected by the temperature of the hops. The original
calibration of the meter was developed on hops at a temperature of 80°F. Higher
temperatures result in higher meter readings than actual MC; lower temperatures
result in lower meter readings. For best accuracy apply a temperature correction
to readings that are taken at temperatures at 70°F or below and at 90°F or
above. The general rule is to subtract 1% from the meter reading for every 10°F
greater than 80 and add 1% to the meter reading for every 10° less than 80.
CARE OF YOUR METER
Store your meter in a clean, dry place. The protective carrying case
provided is an ideal storage place when the meter is not in use. If the
meter has been left in a hot or cold environment overnight or for an
extended period, allow the meter to acclimate to the temperature
conditions in which it will be used for minimum 1-2 hours, or as long as
possible.
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