Chapter 7 – UT Screens
47
7.7.4. Speed sensor
Note: This screen is currently N/A and should not be altered.
7.7.5. Yield sensor
There are six calibration points (PC points) that enable accurate yield
measurement from zero throughput (PC Tare) to maximum throughput
(PC 5) of grain in the clean grain elevator. PC points are derived from
the measurement of grain throughput in barn tests on a wide range of
combine makes and models.
The 'PC Points' can be found on the calibration spreadsheet that is
supplied in the installation manual, or they can be calculated by doing
barn tests.
Delay Time: The grain sensor is measuring grain that entered the
combine some time earlier. A programmable 'yield delay' is needed to
match the measured grain flow to the work rate measured when that
grain entered the combine. This is the time taken for the crop to get
from the header to the yield sensor. The figure is supplied on the
calibration spreadsheet.
Darkness smoothing and IP02 zero smoothing are smoothing settings
that should not be altered.
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