Grain Systems PNEG-1851 User Manual
Page 75
What You Should Know
Over the course of numerous drying cycles and batches of grain, the unload speed automatically changes
to adapt to the moisture and temperature variations of the grain. Although validating the moisture content
of both the wet and dry grain is essential, you can also validate the grain’s actual flow rate to help optimize
unload speeds and minimize inefficient fluctuations.
Tip
It is recommended to validate the unload speed after replacing the main I/O board.
To validate the actual unload speed:
1. Measure the actual amount of dry grain that the dryer unloads over a minimum of a one-hour period
Validating Outgoing Moisture And Temperature Readings, page 71
for details).
2. Compare the measured rate that you obtained in step 1, with the unload speed value that is displayed
in the main menu (see
to locate the unload speed value).
3. From the taskbar, click System→Unload (Advanced)→Unload Speed Calibration.
4. Set the following parameter:
Unload Speed Calibration — The adjustment factor (%) for the displayed metering roll speed. This
adjustment ensures that the calculated and actual grain flow rates are proportionate. A setting of
100% indicates that both rates are equivalent.
Tip
Prior to the initial drying cycle, set the adjustment factor for the unload speed to 100%.
Let’s assume that after manually measuring the actual amount of unloaded grain over a one-hour period,
you obtain a dry grain output value of 525 bushels, however, the metering roll speed value that is displayed
onscreen is 500 bph. Considering that the actual flow rate is 5% higher than the calculated value, enter
105% so that the dryer adjusts the unload speed accordingly.
PNEG-1851 Vision N2
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