Yield Monitoring best practices 17 Yield Monitoring setup
l If the measured value is considerably lower than expected, recheck the entered paddle spacing
and the elevator speed. If both are correct, low tare should not be a problem.
l Tare Deviation indicates how much variation there is in the measurement of the paddle size.
Normally, this number should be less than ¼ the size of the paddle itself. If this number is
excessively large, check the installation for interference or opportunities for excessive vibration,
like a poorly-tensioned elevator chain.
Flow calibration
Calibrating the Yield Monitoring system across the full range of flows will improve the accuracy of
the system. To get a good calibration, do the following:
l Select calibration loads where the:
ll Conditions are consistent
l Crop quality is even
l Ground is as level as possible
l The passes are as long as possible.
Keep the combine speed constant during the entire run.
l Collect loads that are as large as is practical without sacrificing consistency.
l Collect as many different calibration loads as possible, with each load at a different flow rate. To
accomplish this, you can run the system at different speeds, or harvest partial header widths.
l If you still have significant errors in the calibrations, check the noise level during harvesting. If
this figure is above 30%, check for interference with the optical sensors, or opportunities for
excessive vibration. If your paddles are very worn, they may need to be replaced.
Pitch/Roll calibration
The Yield Monitoring system corrects for the pitch and roll of the combine. To benefit from this
feature, perform the pitch/roll calibration as described in the owner's manual.
The system has correction parameters for each tilt direction that you can adjust to improve
performance. Use the following table when you decide how to adjust these parameters.
Note – The pitch sensitivity adjustment depends on whether your sensor is mounted in front of or behind the
center of the paddle.
Tilt angle Yield reading too high Yield reading too low
Left roll
Increase left roll sensitivity Decrease left roll sensitivity
Right roll
Increase right roll sensitivity Decrease right roll sensitivity
Backward pitch, sensor
Decrease backward pitch Increase backward pitch
326 FM-1000 Integrated Display User Guide Version 9.25, Revision B
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