Grain Systems PNEG-1851 - Manual (Page 66)

Chapter 8: The Staged Batch Drying Process
• Unload timer of 10 minutes
• Plenum setpoints of 180°F (for ease of explanation, this example assumes that all plenums use the
same setpoint)
The drying phase starts when the load auger fill switch is activated. During that phase, all fans and heaters
are on so that the plenums can reach a temperature of 180°F. The heaters stop once the grain temperature
reaches 90°F. Once the heaters are off, the fans continue running for another 18 minutes to cool the hot
grain and then stop. Once the cooling phase ends, the unload auger runs for 10 minutes to discharge the
dry and cool grain into an external storage bin.
Figure 8-2 Sequence of operation for the temperature control scheme in staged batch
After You Finish
Now that the control scheme is set, complete the procedure on drying grain in staged batch mode (see
Drying Grain in Staged Batch, page 63 ).
Setting the Time and Temperature Scheme in Staged Batch
To end the drying phase when the grain temperature reaches a specific value and a predefined length of
time elapses, you can use the time and temperature control scheme when running in staged batch.
Before You Begin
Make sure to select the Time and Temperature control scheme in the Moisture Control Mode window
(see
Drying Grain in Staged Batch, page 63 for details).
To set the time and temperature control scheme in staged batch:
1. If the dryer is running, press Stop on the control panel.
IMPORTANT: To stop the dryer when connected remotely, click Stop Dryer from the main menu.
However, once stopped, you cannot restart it remotely. The dryer can only be
restarted on-site.
2. From the menu pane, click Control→Moisture Control Settings.
3. Set the following parameters:
Drying Time — The timer that must elapse to end the drying phase.
Grain Setpoint — The grain temperature that must be reached to end the drying phase.
The drying phase ends when the drying timer elapses and the grain setpoint is reached.
Let’s assume that you enter the following values:
• Grain temperature setpoint of 90°F
• Drying time of 35 minutes
66 PNEG-1851 Vision N2