Grain Systems PNEG-1702 - Manual (Page 56)

8. Competitor Dryer Operation
56 PNEG-1702 ETL Listed GSI/FFI Portable Dryer Manual
Adjusting the Moisture Control
1. 5° on the moisture control will change the output moisture by about 1%. Example: With 100° set, the
result is 16% corn but 17% corn is desired. Reduce the moisture control setpoint temperature by 5°
to 95°. This should change the moisture out to about 17%. If you want the corn to come out dryer,
raise the temperature on the moisture control setpoint.
2. Four (4) sensors are averaged together for sensing moisture control temperature, one on each side
of the dryer in the front and one on each side of the dryer in the back. They are located about 1/3 of
the way up the grain column from the bottom and in from the side about 4''.
3. Grain temperatures can be monitored by pressing the Mode Select button.
4. The moisture control should stay on HIGH about 50% to 90% of the time. There is a broad range that
will work. It should switch from low to high and back again to maintain the desired moisture. A control
that does not switch will not maintain an evenly dried grain moisture when the incoming wet grain
moisture varies.
5. If the Metering Roll switches to LOW and stays there for long periods of time, both the high and low
speed potentiometers should be slowed down 2% (20 points) and monitored for further adjustment.
6. If the Metering Roll switches to HIGH and stays on HIGH more then 90% of the time, increase the
speed on both potentiometers 2% (20 points) and monitor for further adjustment.
7. When adjusting the METER ROLL SPEEDS it is better not to change the speed more than 20 points
(2%) at a time.
8. Anytime a change is made, wait the approximate dry time for that moisture grain from the chart (refer
to PNEG-1650/PNEG-1651) before checking the grain moisture level and making another change
if necessary.