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DOCU-M0106 05-10
AM-2188 v4 09-19
4.2 TESTING PROCEDURE & INFORMATION
In the bale
Because the inside of each bale is not uniform in density or leaf to stem ratio, moisture readings
with your FARMSCAN 2188 will vary from one part of the bale to another. It will read highest if
the probe is inserted into the “tight” side. Your meter will give higher readings in tight bales than
in loose bales.
For best results: INSERT THE PROBE INTO THE “TIGHT” SIDE AT A 45
̊
ANGLE. Take readings in at least five (5) places, and use
the highest reading as a guideline. DO NOT AVERAGE RESULTS.
In the windrow
Check the windrows at several locations by turning the windrow up on its side and selecting a
handful of hay from the bottom (hay from the bottom should contain the most moisture, since
the top of the windrow will dry out first).
Twist the sample handful into a tight knot, trying to simulate the density of a bale. Insert the
metal tip of the probe into the tightest part of the knot, so that both metal parts of the tip are
within the knot.
There are more variables to testing moisture in the windrow than in a bale. For greater accuracy,
several bales should also be baled and tested before the entire field is baled.
4.3 VARIABLES AFFECTING MOISTURE READING
Natural variations within the plant before proper curing: The higher the moisture content, the
wider the variations. Greater uniformity can be expected as more curing takes place.
SWEATING:
Higher readings may occur during the first couple of days after baling. Immediatley
after baling, moisture readings may be low and then climb during the “sweating process”. As
the hay cures, moisture readings should drop and continue to decline, as the hay becomes
progressively drier. It is important to continue to monitor moisture for several days.
PRESERVATIVE:
Some preservatives increase conductivity initially, until the preservative is
absrobed, usually in 1 to 2 days, it may case the moisture reading to be 2 to 4 points above the
same hay which is untreated.
% OF GRASS IN YOUR HAY:
Your FARMSCAN 2188 has been calibrated on 100% Alfalf hay. The
more grass in the hay, the higher the moisture reading is compared to actual reading.
IMPORTANT: PLEASE READ
Because of the numerous variables which affect your FARMSCAN 2188’s readings, the
indicated moisture content should not be used as an absolute, qunatitative measurement.
Your moisture meter’s readings are, however very useful guidelines for safely baling and
storing hay.
