Near Intersection of I-35 & I-90 Southern Mn. | The recommended procedure is to do several moderately sized loads. You should attempt to harvest each of these loads at the same bu/hr as much as possible throughout that cal load. Using smaller cal loads will make that easier.
Again each cal load should be harvested at the same bu/hr throughout that cal load. Additional cal loads should be done at different bu/hr rates but consistent throughout each cal load.
As an example cal load 1 might be done at a rate of 2000 bu/hr with corn. Try to maintain 2000 bu/hr throughout that cal load. Another load might be harvested at 1800 bu/hr again try to maintain 1800 bu/hr on that cal load. Repeat the process with other cal loads that vary but are consistent within themselves.
The reason for this is Ag Leader splits up the capacity of your combine into 10 categories referred to as "C" numbers. When the sensor is receiving little grain, you are at the low end of the "C" numbers and the value associated with C2 might be used. Later when you get into a better part of the field higher "C "numbers that have higher values associated with them are used.
By doing several cal loads at various flow rates (again consistent within the cal load) you are providing the system with a history of how your combine behaves for different "C" numbers. The system will modify those initial "C" numbers to more correctly represent what is happening in your combine. By having the cal loads at various harvesting rates you are helping this process as the system can modify the "C" numbers appropriately.
Ag Leader supplies "C" numbers which they think are their best guess for your combine. This is your starting point and may be quite close to actual.
If you graphed the original values by having the "C" numbers on the horizontal axis and the values on the vertical axis you would see that the relationship is linear (the graph is a straight line). If you make a graph of the "C" numbers after the calibration process has been done, you will likely see a different graph. The new graph may be higher or lower and will likely have a curve in it. These new numbers should more correctly represent how your combine behaves.
These new numbers are used until another calibration is performed. When doing a new calibration you have the option of adding the new weights in with the previous ones to come up with a new set of "C" numbers or to save and retire the old "C" numbers and start from scratch. Depending on your situation one way may be more desirable than the other.
Some systems only use one Cal number for the entire range of harvesting rates. The calibration process for them would be different and large load averages might be best. I'm not familiar with how the Fieldstar system does calibration.
Edited by tedbear 8/28/2015 13:54
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1st yr Integra yield monitor
