Grain Systems PNEG-1702 User Manual

Page 60

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9. Vision/Dri-Tek Dryer Operation

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PNEG-1702 ETL Listed GSI/FFI Portable Dryer Manual

13. Refer to PNEG-1650/PNEG-1651 for the full heat chart settings that correspond to the model of

dryer. Note the settings for initial moisture, moisture removed, approximate dry time, 1 Speed,
2 Speed low and 2 Speed high. Select the line that has the initial starting moisture. These are the
settings that will be referred to during this start-up procedure.

14. Run the fans and burners for approximately 10% longer than the estimated dry time for the incoming

moisture. Example: Ten points removal is approximately 54 minutes. -10% of 54 minutes is
5.4 minutes, so run the fan/heaters approximately 59-60 minutes.

15. After the time in

Step 14

turn the Unload Auger switch to MANUAL and set the meter roll speed,

(manual speed). Remember that Manual is a true manual operation, with no moisture control. The
meter rolls will run at the speed that you select using the meter roll speed encoder. To do this, press
on the meter roll adjustment knob. When the “Modify Meter Roll Setpoints” window appears turn the
meter roll adjustment knob until the speed indicator is set to the speed suggested for 1 Speed, then
touch the Accept/Exit button to set this value into the computer. Grain should begin to run at this time.
Run time for this is about 10% longer than the (approximate drying time) required for the moisture you
are trying to dry. This allows the moisture in the dryer to reach an even gradient top to bottom without
having any highs or lows in it. It will however, over dry some of the grain.

Figure 9B

16. Increase the drying temperature to 190°F for single fans or for multiple fan dryers, set the

heat chambers 30° to 60° apart. Hottest at the top and the coolest at the bottom. See setting the
temperatures in Vision Manual.

17. DO NOT ADJUST THE DRYER FOR MOISTURE DURING THIS PROCESS OR THE DRYER WILL

ESTABLISH HIGH AND LOW SWINGS IN THE MOISTURE CONTROL. IT WILL TAKE SEVERAL
HOURS TO WORK OUT.

18. After the run time in

Step 15

, set the moisture control. Turn the Unload switch to AUTO. Press the

meter roll adjustment knob. When the “Modify Meter Roll Setpoints” window appears, check that
2 Speed is selected. Set the low speed by pushing the meter roll speed adjustment knob until the low
speed indicator is red and then turn the knob to the desired low speed setting. When low speed is
set, push the meter roll adjustment knob until the high speed indicator is red, then turn knob to the
desired high speed setting. Set the high and low speed settings (as close as possible) to the values
given in the drying time tables. Touch the Accept/Exit button and return to the Default Operation
Screen. IMPORTANT: The high speed setting must be a higher value than the low speed.

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