Yield Monitor 2000
Troubleshooting
Ag Leader Technology
June 1997 6-13
high or low moisture reading (unless you set that load to manual
moisture and you are sure the flow sensor have no buildup).
3. Calibration loads are set on the wrong grain type.
Solution: Check every calibration load, ensuring that it is set on the
correct grain type. Press the GRAIN key to see the grain type when the
load is displayed. If the load was harvested while set on the wrong grain
type, you can still change those loads to the correct grain type on the
monitor, except when you are changing either to or from CORN or
SPECIAL CORN (all other grain type combinations can be changed
from one to another to provide correct weight calculations). Use the
bottom-left UP or DOWN ARROW keys to change the grain type. If
you made corrections to the grain types, calibrate the monitor again by
pressing the YES key when “CAL LBS NOW?” appears on the display
when pressing the GRAIN key. Answer YES to “CONTINUE WITH
LBS CAL?” (if you don’t have at least four actual weights, you can not
do a full calibration). Your final average error should be 1% to 3% and
your final maximum error should be 2% to 5%.
4. You must add more calibration loads at different grain flow rates (often
the case when your grain weight becomes inaccurate when you increase
or decrease your speed, when you harvest a higher- or lower-yielding
field, or when grain moisture has changed drastically).
Solution: Weigh and enter one or two actual weights for the crop
conditions or grain flow rates for the grain weight the monitor is
inaccurately measuring. Press the GRAIN key, then press the YES key
when “CAL LBS NOW?” appears on the display to calibrate the monitor
again.
Look at your final average and final maximum errors (average 1% to
3%, maximum 2% to 5%). Harvest more loads of grain at that crop
condition and then check the grain weight.
The monitor should be calibrated accurately after entering 10 to 15
calibration loads at different grain flow rates.
5. The calibration numbers (C1 through C11) are set incorrectly.
Solution: The calibration numbers should be set to their initial values
(refer to the initial calibration sheet) before calibrating, but the monitor
automatically adjust each calibration number (except C1) to its correct
value when you calibrate the monitor.
Press the GRAIN key and display each calibration number (C1 through
C11). C1 is the vibration calibration number and should be between 0
and 250. C2 through C11 should be above zero and increasing in value as
the calibration number increases (e.g., C3 should be higher than C2, and
(259 pages)
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