Ag Leader PFadvantage Harvest & Application Operators Manual - Manual (Page 139)

PFadvantage Calibrating Grain Weight
Ag Leader Technology (Harvest Mode)
September 2003 3-17
Step Action
11 Good Calibration Results:
If you have four or more calibration loads for grain, your goal after
completing a calibration should be to achieve an average error of 1
percent to 3 percent and a maximum error of 3 percent to 5
percent. If you have less than four calibration loads for grain, the
calibration errors may be slightly higher than if you had four or
more calibration loads.
If you find loads with high calibration errors after completing a
calibration, you should remove the loads as calibration loads by
pressing the CAL ON/OFF key. Press the PERFORM CAL key
again to restart the calibration.
Once you are satisfied with your calibration results, press the EXIT
key until you return to the main operating screen.
Reasons for high calibration errors on loads
• Grain type set incorrect for the load
• Moisture is incorrect for the load
• Actual pounds value is not correct
• Grain weighed is not the same amount of grain that was harvested into
the load (for example: combine or wagon tank not empty before starting
load or forgot to change loads and added more grain into load after
grain weighed)
• Did not have 1/2 inch clearance between paddles and elevator housing
at top of elevator
• Installation problem with deflector plate or flow sensor
• Elevator speed is erratic
Recalibrating the
Monitor You can add or eliminate a calibration load and recalibrate the monitor any
time to improve the monitor’s calibration accuracy. If you have not
achieved satisfactory calibration results after entering 10 to 15 calibration
loads (with varied flow rates) for grain something is wrong. Refer to the
troubleshooting section instead of adding more actual weights.