Ag Leader PF3000Pro Cotton Yield Monitor Operators Manual - Manual (Page 58)

PF3000 Pro Cotton Yield Monitor
Calibrating Seed Cotton Weight Ag Leader Technology
July 2003 3-6
Calibration Procedure
Before You Begin
Before the monitor will accurately measure weight, you must calibrate the
monitor for seed cotton weight (lbs) before you harvest. You should be able
to calibrate the PF3000 Pro Cotton Yield Monitor for load weight to an
average error of 3 percent to 5 percent.
Although it is recommended, you do not have to calibrate load weight at the
beginning of the season to get accurate results. When you calibrate the
monitor, it will automatically correct weights for all the loads of that cotton
calibration set that were previously harvested.
Harvesting
Calibration Loads The monitor calibrates itself on the basis of actual weights you enter into the
monitor. You get the actual load weights by weighing the load on accurate
scales or by obtaining accurate module weights for a load from your gin.
IMPORTANT: For accurate calibration results, you should obtain at
least two calibration loads for each calibration set. Three calibration
loads should reflect the conditions present for the remainder of the
harvesting under that calibration set.
You will get the best results when conditions are the same throughout all
loads harvested within a cotton calibration set. So, it is best to harvest
calibration loads during the afternoon, when moisture is normally at its
lowest point of the day. Moisture variations will have an impact on scale
readings, although it will not in large affect the monitors estimated weight
or maps generated from the yield data. Keep in mind the optical flow
sensors are measuring volume and the scales are measuring weight. The
amount of volume the monitor reads is then matched with the scale weight,
thus calibrating the monitor.
Also, different varieties are more or less fluffy and have different seed mass
so they should not be mixed within a single calibration for maximum
accuracy.
Carefully follow these directions when harvesting your calibration loads.
The following procedure applies to both first and second pick calibrations.