Grain Systems PNEG-1935 - Manual (Page 46)

6. Moisture Control Options
46 PNEG-1935 Vision Hybrid for Portable Dryers
How it Works:
The user should stabilize the dryer with the Unload switch in the “MANUAL” position. It is imperative that the
dryer is outputting the desired moisture content grain before switching the unload to the “AUTO” position.
Single Plenum: The user enters two (2) parameters: Dry Timer and Plenum Setpoint(s). The drying phase
consists of heating the plenum to the setpoints for the dry timer period. Once the dry timer expires, the
controller moves on to cooling.
Dual Plenum: The user enters four (4) parameters: Hi-Heat timer, Lo-Heat timer, Plenum Hi-Temp and
Plenum Lo-Temp. The drying phase begins by using the Plenum Hi-Temp setpoint until the Hi-Heat timer
has expired. The controller then changes to the Plenum Lo-Temp for the Lo-Heat timer period. Once the
Lo-Heat timer expires, the controller moves on to cooling.
Single and Dual Plenum: A “Max Grain Temp” safety is available for this scheme. By enabling this
feature, the dryer will shutdown and issue a warning if the grain temperature exceeds the “Max Grain
Temp” value.
Setup Procedure
1. Press the “Stop” button on the control panel if the dryer is running.
2. From the “Setup” screen, select “Drying Mode”, then “Staged Batch”.
3. From the “Drying Mode Selection” screen, select “M/C Setup” to access “Staged Batch Setup”.
4. Select “Time” from the “Staged Batch Drying Criteria”. Make sure only the “Time” check box is
selected, as it is possible to have “Time” and “Temperature” selected at the same time. If
“Temperature” is selected, press the “Temperature” button to de-select it.
5. If desired, enable the “Max Grain Temp” safety.
6. Select “Single” or “Dual” plenum.
7. Return to the “Default Operation Screen”.
8. Set the Dry Timer(s), Cool Timer and Unload Timer to the desired time.
9. Press the “Temp” button and set the plenum(s) to the preferred temperature(s).
10. Position “Unload” switch in the “AUTO” position.
11. Press the “Start” button on the control panel.
Temperature Controlled Scheme
When to Use:
This scheme is used when the user would like to heat the grain to a specific temperature.
How it Works:
The user should stabilize the dryer with the Unload switch in the “MANUAL” position. It is imperative that the
dryer is outputting the desired moisture content grain before switching the unload to the “AUTO” position.
Single Plenum: The user enters two (2) parameters: Grain Temperature Setpoint and Plenum
Setpoint(s). Until the Grain Temperature sensor reading is above the Grain Temperature setpoint, the
plenum(s) will be heated to their respective temperatures. Once the Grain Temperature setpoint has been
met, the controller will move on to cooling.
Dual Plenum: The user enters four (4) parameters: Hi-Temp, Lo-Temp, Plenum Hi-Temp and Plenum
Lo-Temp. The drying phase begins by using the Plenum Hi-Temp setpoint until the grain temperature
reaches the grain “Hi-Temp” setpoint. The controller then changes to the plenum “Lo-Temp”. Once the
grain Lo-Temp setpoint is met, the controller moves on to cooling.
Single and Dual Plenum: A “Max Time” safety is available for this scheme. By enabling this feature, the
dryer will shutdown and issue a warning if the drying phase lasts longer than the “Max Time” specified.