Ag Leader PF3000 Harvest & Application Operators Manual - Manual (Page 134)

Calibrating Grain Weight PF3000
(Harvest Mode) Ag Leader Technology
April 2002 3-18
Periodic Checks
for Accuracy You should occasionally check the monitor for calibration accuracy
throughout the season by weighing a monitor load of grain. If you find the
monitor is not accurate, enter that actual weight into the monitor and
calibrate the monitor again.
NOTE: If you do not vary your flow rates while harvesting your initial
calibration loads, later in the season you may find the monitor is not
accurate because you are harvesting at a different grain flow rate than for
what you have calibrated. Entering one or two more calibration loads at
that grain flow rate will improve your accuracy.
Adjusting for
Chain Slack If you adjust for slack in your clean grain elevator chain during the season,
make sure that you use the lower adjuster. If you move the top shaft of the
grain elevator, your calibration will be inaccurate and you will have to enter
all new calibration loads.
C Numbers The 11 C Numbers, C1 through C11 determine the pounds that the monitor
calculates. You can display the C numbers by pressing the SHOW CAL
NUMBERS key at the grain weight calibration screen where you choose the
grain.
IMPORTANT: Do not change the C numbers after you have
calibrated.
The C numbers initially should be set to the same values that appear on
your initial calibration sheet (refer to the setup section), but they will change
and become more accurate after you have calibrated.
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