DMC Combine CALC-U-DRI II, Owner'S Manual

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7. The Combine Calc-U-Dri unit needs to be calibrated for different grains and auger
configurations. This is done by comparing the reading on the digital display with the
moisture content reading from a reliable moisture tester.
Note: It is important to take samples when the readings are steady and not changing rapidly
and to use the average of several samples when calibrating the unit to insure accuracy.
See
sampling procedure on page 10 .
8. Adjust the offset to account for the difference between those readings. Adjust the offset to a
minus value if the Calc-U-Dri readings were higher than the moisture tester’s readings. If the
Calc-U-Dri moisture readings were lower than the moisture tester’s readings, adjust the
offset to a plus value equal to the difference.
9. The Combine Calc-U-Dri II computes two different moisture averages. The short average
can be used for a hopper of grain or just one round in the field. The long average can show
the moisture in a truck load or for one or more fields. To read an average, push either the
“SHORT” or “LONG AVERAGE DISPLAY” switch down.
To reset an average, push the respective switch up and hold until you hear four (4) beeps.
At the end of the fourth beep, the old average will be cleared. A new average will auto-
matically begin if the “AVG ON” indicator is on.
10. The averaging switch, located in the path of the clean grain, signals the Combine
Calc-U-Dri II when switch is covered with grain and valid data is present to be used for
averaging. After a delay of approximately six (6) seconds, the “AVG ON” light will turn
on. This light indicates that the Combine Calc-U-Dri II moisture reading is being used to
update both the short and long averages. If sufficient grain is not present to keep the
average switch covered, the “AVG ON” light will turn off after approximately two (2)
seconds. The two averages will remain in memory for up to three weeks without power
to the Combine Calc-U-Dri II.
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OPERATION (continued)
5. Switch the power switch to “ON WITH ALARM”. An audible alarm will sound and the red indicator
will light when the moisture content of the grain reaches the moisture limit setting. The alarm will
last about one-half second and will sound each time the moisture limit is reached. If the power
switch is in the “ON” position, the audible alarm will not sound and only the light on the digital
display will come on to alert the operator when the moisture limit is reached.
6. Push the “MOISTURE OFFSET DISPLAY” switch down to read the setting for the mois-
ture offset. It should be set to 0.0% initially before calibration. This can be adjusted to a
plus value or a negative value by turning the “OFFSET ADJUSTMENT” knob.