Great Plains 3S-4000HDF Operator Manual - Manual (Page 50)

46 3S-4000HD/HDF Table of Contents Index Great Plains Manufacturing, Inc.
195-067M Table of Contents Index 2013-06-13
Acremeter Operation (S/N YY1736+)
The acremeter counts shaft rotations whenever the shaft
is rotating - this is with the drill lowered and in motion or
during crank operation. The meter is programmed to
display rotations as acres or hectares, when using all
rows, factory-specified tires and tire inflations. For further
reference see the Electronic Acremeter Manual
152-314M.
Note: Unusual conditions and/or non-standard row
spacings can cause the acremeter tally to vary
from actual acres planted.
Normal Operating Sequence
Note: The acremeter counts rotations during drill
calibration (and if so, can be useful for calibration,
although the meter must be on, or moved to, the
shaft being cranked).
1. Record the acremeter reading at the start of planting
(and after calibration). The large “
12345.6 ” format
display is the grand total area planted since meter
installation. The smaller number in the lower left
corner is the number of revolutions per acre for
which the meter was factory-programmed. If the
display is blank, see “Dormant Display” below.
2. Lower drill and plant. Acremeter counts shaft
rotations, calculates acres or hectares, and adds to
the running grand total.
3. During planting (drill lowered and moving forward),
the display blanks (goes dormant), but area tally
continues.
4. When raised for turns, obstructions and transport,
the drive wheel stops, and the meter counts no
additional (non-planting) rotations.
5. Whenever shaft rotation stops, the LCD display
activates after 30 to 60 seconds, and remains visible
for 30 to 45 minutes.
6. At the completion of planting, record the final reading
or the grand total. If the display goes dormant before
you can read it, see “Dormant Display”.
7. Subtract the reading at step 1 from the reading at
step 6 for the total planted in the present session.
Dormant Display
Refer to Figure 44
To conserve power, the LCD display blanks itself most of
the time. If you need to read the display after it has
“timed out” and gone dormant:
• use the calibration crank to turn the jackshaft once, or
• gently tap or wave a magnet at either of the Great
Plains logo spots on the lower region of the display.
Be careful not to scratch the window.
Figure 43
Electronic Acremeter
(S/N YY1736+)
27378
Figure 44
Meter Display (Acres)
29897
1
1