MT-16
OPERATING INSTRUCTIONS
GRAIN MOISTURE TESTER
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1.0 GENERAL
The MT-16 Moisture Tester is a multi-pur-
pose instrument for use when harvesting,
drying grain and managing grain storage.
The MT-16 has 16 scales for measuring the
moisture content of whole grain kernels
and seeds. It is a microprocessor-controlled
instrument and provides a direct moisture
read-out with no additional conversions
necessary. The moisture range for corn is
5 to 40% and 5 to 35% for all others.
The MT-16 features:
• Measurement of 16 different grains,
seeds and beans
• Automatic temperature compensation for
variations of grain and tester tempera-
tures
• Individually adjustable grain scales to
match readings from an oven dryer or
local grain elevator
• Automatic averaging function for up to
99 moisture results
• Automatic power switch-off
The MT-16 is quick and simple to use:
The moisture measurement in initiated with
a single push-button action after switch-
ing the tester on. When adjustments are
desired, the display guides the user through
the selections. On the right side of the tester
there is a diagram summarizing the basic
operation of the tester.
2.0 OPERATION
2.1 Quick Start
A. Fill the Cylinder: Fill the measuring
cylinder ONE FOURTH (1/4) full. Gently
shake the tester to settle the grain around
the sensors, then continue lling until grain
is level with the brim.
B. Cap Pressure: Screw down the cap and
turn until the cap’s center is ush with the
rest of the cap.
C. Power ON/Grain Select: Press the P
button. After the three dashes disappear, a
number will appear that corresponds with a
grain listed on the side of the tester. Select
the number of the grain you wish to test
by pressing the F button until it appears on
the screen.
D. Testing: After selecting the grain scale,
the test “RUN” will appear followed by the
moisture content of the sample. The tester
will then automatically shut off.
2.2 Measurement Preparation
2.2.1 Instructions: If a long period of time
passes between using the tester, it will be
helpful to re-familiarize yourself with it.
Please re-read the instructions.
2.2.2 Clean the Measuring Cylinder:
Check that the measuring cylinder is clean
and empty. If needed, you may clean it
with a wooden pin or a small, stiff brush.
Do not blow into the cylinder, because the
moisture present in your breath will affect
future readings.
2.2.3 Averaging Memory: If you are go-
ing to average new measurement results,
check that no earlier readings exist in the
averaging memory. To check: press and
HOLD the F-button. While holding the
F-button, press the P-button. The screen
will then display an “A”. You may release
both buttons at this point. The tester will
then display “A0#’. The digits displayed
are the number of samples being averaged.
The screen will then toggle back and forth
between “A##’ and the average moisture
of the measurements in memory. When the
averaging memory is empty, “A00’ will be
displayed. In both cases, the tester will au-
tomatically shut off after several seconds.
2.2.4 Clear the Average Memory: Press
and hold the F-button while the “A##”
is displayed until you see a “0” on the
screen.
2.2.5 Grain Variations: Grain moisture
can vary widely. To get reliable moisture
data, always take several tests from dif-
ferent parts/locations of your material and
average the results.
For best results, take at least ve (5) test
samples from the total grain quantity. The
average of these 5 samples is the nal mois-
ture content result of the grain quantity you
checked.
NOTE: The moisture in different parts of
your grain quantity will vary, even in the
nal stage of the drying process.
2.3 Operation in Detail:
2.3.1 Fill the Measuring Cylinder:
A. First, ll the measuring cylinder 1/4 full.
Then shake gently to evenly distribute the
grain. Next, continue lling until grain is
level with the brim.
B. Start the cap on the threads and turn
clockwise until the center of the cap is ush
with the surface of the cap. This will insure
uniform density of the material inside the
cylinder.
2.3.2 Power Up: Start testing by pressing
and releasing the power P-button. The dis-
play will work for 20 seconds, after which
the system will automatically shut off.
Three dashes will appear.
NOTE: Disregard any “LoBat” warnings
that may occur with the 3 dashes. The warn-
ing is only valid WHILE a moisture result
is being displayed on the screen.
2.3.3 Grain Scale Selection
Next, after the three dashes appear, the
number of the grain scale that was last used
will be displayed on the screen. Press the
F-button as many times as necessary to
scroll through the grain scales until the
desired scale is displayed. On the side of
the tester is a reference chart with materials
and their corresponding numbers.
Number -0- is an arbitrary scale that can be
used for other grains not listed on the side
of the tester. Conversion scales for grains
not listed are available upon request.
Once the grain number has been selected,
the tester will keep that number in memory.
The next time you turn on the tester, it will
come up rst.
2.3.4 Measurement: The tester will dis-
play “RUN” while measuring the sample’s
moisture, the measuring cylinder’s temper-
ature, and while computing the temperature
compensation.
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