Great Plains Electronic Acremeter User Manual

Great Plains Mfg., Inc.

Electronic Acremeter

Great Plains Drills

Used with most Great Plains Drillsa (this includes all fertilizer and heavy duty models of drills listed)

• 2S-2600, 3S-3000, 3S-4000, 3S-5000

• 2N-2410, 2N-3010, 2N-2420, 2N-3020

• 605NT, 606NT, 706NT, 1006NT, 1205NT

• 3P605NT, 3P606NT, 3P806NT, 3P1006NT

• 3P500, 3P500V, 3P600

• 3P1200, 1210, 1220, 1500, 1510, 1520, 2000, 2010, 2020 (fluted feed drills only)

• 3P2400 (fluted feed drills only)

• 800, 1300

General Information

These instructions include both operation and installation
of an Electronic Acremeter.

Installation

• If installation is necessary, order the appropriate kit
(see “Acremeter Kits”, page 29 through page 33).

• Consult your Great Plains dealer for specific ordering
information.

• Each acremeter upgrades one drill.

• Installation instructions start at “Acremeter Installa-

tion” on page 13.

Installation Instructions 1

Kit Product Description

118-260A 3P LOUP ACREMETER

152-326A NO-TILL LOUP ACREMETER

152-327A 3P LOUP ACREMETER

152-328A NO-TILL DUAL SEED/NG ACREMETER

152-329A 3P DUAL SEED/NG ACREMETER

175-311A EW LOUP ACREMETER

194-073A MIN-TILL ELECTRONIC ACRE METER

197-187A 2SNT LOUP ACREMETER

Figure 1

Electronic Acremeter

Programming the Acremeter

• If your drill was equipped with this acremeter from
production, it will have been supplied already pro­grammed.

• If you ordered your acremeter and install it yourself, it
will need to be programmed.

• If your new Great Plains acremeter is not prepro­grammed to your drill, see “Acremeter Operations”
on page 2 of this manual.

a. The electronic acremeter is compatible with all drills having a main or transfer 7/8 hex drive shaft on any section of the drill. The shaft must

be before any Drive Type, gearbox, lower, range, transmission or upper variable sprockets, and have only fixed sprockets and chains
between the drive wheel and the shaft.

Reference Information

• Find “Calibration For All Drill Models”on page 4.

• FInd “Drill Width Charts” on pages 7 and 8.

Tools Required

• basic hand tools.

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2 Electronic Acremeter

Acremeter Operations

A battery-operated electronic acre counter is supplied
with the drill. The display module for the system is
normally on the front face of the main toolbar near the
left gauge wheel.

The acremeter calculates and displays the field acres
and total acres accumulated.

The meter counts rotations of the main ground drive
shaft before the clutch. The meter tallies all movements
with the drill unfolded, whether planting or not.

The counter operates in one of two modes

•Insleep mode, the display is blank, and the counter
is accumulating acres. Sleep mode is entered if a
button is not pressed for 20 seconds. If a passcode is
set, it must be re-entered to change protected function
values.

•Inentry mode, the display is on, and the operator can
enter values. To access entry mode, press the

button . If you continue to press the button, the
acre counter cycles through the available functions.
The LED light above the functions indicates which
function is selected.

The functions are:

2

1

Great Plains Mfg., Inc.

1

2

4

Figure 2

Acremeter Console

3

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FIELD Field Acres (always unprotected)
TOTAL Total Acres (passcode protectable)
PULSES Pulses per Mile (passcode protectable)
WIDTH Swath Width (passcode protectable)
P-WORD Password (enable/set/change/clear)

Note: U = USA units or acres

E = European units or hectares

Values are entered by pressing the UP and
DOWN arrow buttons. Holding a button
automatically increments that value. Long holds
increment faster than short holds. Pressing both
buttons simultaneously is used to reset some values
to 0.

•Tochange modes press and hold all 3 switches at
the same time. When pressed, the current mode will
scroll across the screen. “U” is for USA units, “E” is for
European (metric) units. When you have held all
3 switches for 5 seconds the mode will change.

This means you can check the mode at any time by
pressing the 3 keys and releasing them before
5 seconds has passed without changing anything.

Note: When you change modes, all the defaults are

4

reset to factory values so these will need to be set
properly for the machine. Also area accumulated
in one mode is not converted. It is reset to 0.

3

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Field Acres

Refer to Figure 3

Press the button until the “FIELD” LED is lit. The digits
indicate the acres covered since the field acre counter
was last cleared to zero.

To clear the field acre count, depress the UP and DOWN
buttons for 2 seconds.

Note: If a passcode is set, it must be entered to clear the

total acre count.

Field acres count in tenths of an acre up to 9999.9 acres.

Installation Instructions 3

Total Acres

Refer to Figure 4

Press the button until both the “FIELD” and “TOTAL”
LEDs are lit. The digits indicate the acres covered since
the total acre counter was last cleared to zero.

To clear the total acre count, press and hold the UP and
DOWN buttons for 2 seconds.

Note: If a passcode is set, it must be entered to clear the

total acre count.

Total acres count from .1 to 99999 acres.

Figure 3

Field Acres Display

Figure 4

Total Acres Display

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4 Electronic Acremeter

Pulses per 400 Feet of Travel

Press the button until the “PULSES” LED is lit. The
number in the display indicates how many pulses are
generated for every 400 feet (122 meters in “E” mode)
driven.

Note: If a passcode is set, it must be entered to adjust

the pulses per 400 feet (122 meters) of travel.

There are two methods to enter the pulses: known pulse
value and calibrating pulses per 400 feet (122 meters) of
travel.

Known Pulses Values

Refer to Figure 5

1. If you know the number, select it using the UP and

DOWN buttons. When you press the button, the
controller accepts the number in the display as the
new pulses per 400 feet (122 meters).

EXAMPLE:

Approximate pulses per 400 feet (122 meters) for
2S-2600, 3S-3000, 3S-4000 and 3S-5000: 17.

Calibration For All Drill Models

Great Plains Mfg., Inc.

Figure 5

Example:Pulses Per 400 Feet Entry

for 2S-2600/3000/4000/5000

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Model Calibration

2S-2600, 3S-3000, 3S-4000, 3S-5000 17

2N-2410, 2N-3010, 2N-2420, 2N-3020 31

706NT, 1006NT 36

1205NT 38

606NT 52

3P606NT, 3P806NT, 3P1006NT 46

3P500, 3P500V, 3P600 46

800EWD 52

1300EWD 16
3PT 1200, 1500 51
3PT 2000, 2400 49

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Calibrating Pulses per 400 Feet of Travel

Note: Calibration is not recommended for the 2S-2600,

3S-3000, 3S-4000, or 3S-5000. Any value other
than 17 pulses per 400 feet results in reduced
accuracy of area measurement.

Refer to Figure 6

The acremeter can count pulses, and if the distance
driven is known, the pulses per 400 feet of travelbmay be
entered. Run the test with the drill unfolded, and the
openers raised.

Pulses Per Mile

Note: If you have documentation yet from a past design

of acremeter listing the pulse value stated as
pulses per mile, divide that value by 13.2 to arrive
at a new number. (5280 feet per mile/400 ft =

13.2). If you get a fraction round up to the next full
digit for the best accuracy.

PulsesCounted PerMile

Pulses Per 400 ft of Travel

-------------------------------------------------------

=

13.2

Installation Instructions 5

Pulses Per 400 Feet

To calibrate the pulses per 400 feet of travel, press and
hold the UP and DOWN buttons until “0” appears in the
PULSES display. The acre counter is now ready to count
shaft rotations.

Enter the tractor cab and drive 400 feet.

Press the button to wake up the acre counter. The
“PULSES” LED will again blink. The number displayed is
the pulses per 400 feet. Press the button to accept the
setting. The “PULSES” LED will stop blinking and remain
on.

Figure 6

Count Pulses Per 400 feet of Travel

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b. For more accurate calibration, operate for some multiple of 400 feet (say 1600 ft) divide the count by that multiple and round off.

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6 Electronic Acremeter

Width

To correctly calculate acres planted, the acremeter
needs the swath width of the drill.

Note: If a passcode has been set, it must be entered to

adjust WIDTH.

Refer to Figure 7

Press the button until the “WIDTH” LED is lit. The
number displayed is the swath width of your implement in
feet (the span between end row units, plus one row unit
spacing).

To adjust the width, press the UP and DOWN buttons.
The width can be adjusted from .1 to 99.9 feet, in tenths
of a foot.

Model Spacing Width

2S-2600/F/HD/HDF-3210 10 in.

2S-2600/F/HD/HDF-4275 7.5 in.

2S-2600/F/HD/HDF-5206 6 in.

26.7 feet

8.1 meters

26.3 feet

8.0 meters

26.0 feet

7.9 meters

Figure 7

Drill Width (Swath)

Great Plains Mfg., Inc.

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Model Spacing Width

3S-3000/F/HD/HDF-3610 10 in.

3S-3000/F/HD/HDF-4875 7.5 in.

3S-3000/F/HD/HDF-6006 6 in.

Model Spacing Width

3S-4000/F/HD/HDF-4810 10 in.

3S-4000/F/HD/HDF-6375 7.5 in.

3S-4000/F/HD/HDF-7806 6 in.

Model Spacing Width

3S-5000/F/HD/HDF-6010 10 in.

3S-5000/F/HD/HDF-8075 7.5 in.

3S-5000/F/HD/HDF-1006 6 in.

30.0 feet

9.1 meters

30.0 feet

9.1 meters

30.0 feet

9.1 meters

40.0 feet

12.2 meters

39.4 feet

12.0 meters

39.0 feet

11.9 meters

50.0 feet

15.2 meters

50.0 feet

15.2 meters

50.0 feet

15.2 meters

Note: Implement width in “U” mode is USA feet to one

decimal place.

Implement width in “E” mode is in meters to one
decimal place.

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Installation Instructions 7

Drill Width Charts

Model Spacing Width

2N-2410-2810 10 in. 23.3 feet (7.1 meters)
2N-2410-3875 7.5 in. 23.8 feet (7.9 meters)
2N-3010-3610 10 in. 30.0 feet (9.1 meters)
2N-3010-4875 7.5 in. 30.0 feet (9.1 meters)

Model Spacing Width

2N-2420-2810 10 in. 23.3 feet (7.1 meters)
2N-2420-3875 7.5 in. 23.8 feet (7.9 meters)
2N-3020-3610 10 in. 30.0 feet (9.1 meters)
2N-3020-4875 7.5 in. 30.0 feet (9.1 meters)

Model Spacing Width

606NT-0975 7.5 in 5.6 feet (1.7 meters)

706NT-1075 7.5 in 6.3 feet (1.9 meters)
1006NT-1575 7.5 in 9.4 feet (2.9 meters)
1205NT-1975 7.5 in. 11.9 feet (3.6 meters)

3P606NT-0975 7.5 in 5.6 feet (1.7 meters)
3P806NT-1375 7.5 in 8.1 feet (2.5 meters)

3P1006NT-1575 7.5 in 9.4 feet (2.9 meters)

Model Spacing Width

3P600-0975 7.5 in 5.6 feet (1.7 meters)

3P600-1106 6 in 5.5 feet (1.7 meters)

3P500-0775 7.5 in 4.4 feet (1.3 meters)

3P500-0906 6 in 4.5 feet (1.4 meters)

3P500-0775 (V) 7.5 in 4.4 feet (1.3 meters)
3P500-0872 (V) 7.25 in 4.8 feet (1.5 meters)
3P500-0906 (V) 6 in 4.5 feet (1.4 meters)

Model Spacing Width

800-1275 7.5 in 8.1 feet (2.5 meters)

800-1506 6 in 7.5 feet (2.3 meters)
1300-1610 10 in 13.3 feet (4.1 meters)
1300-2175 7.5 in 13.1 feet (4.0 meters)
1300-2506 6 in 13.0 feet (4.0 meters)

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8 Electronic Acremeter

Model 1200/1210/1220 Spacing Width

1200-1410 (3PT) 10 in 11.7 feet (3.6 meters)
1200-1808 (3PT) 8 in 12.0 feet (3.6 meters)
1200-1975 (3PT) 7.5 in 11.9 feet (3.6 meters)
1200-2007 (3PT) 7 in 11.7 feet (3.6 meters)
1200-2406 (3PT) 6 in 12.0 feet (3.6 meters)

Model 1500/1510/1520 Spacing Width

1500-1810 (3PT) 10 in 15.0 feet (4.6 meters)
1500-2208 (3PT) 8 in 14.7 feet (4.5 meters)
1500-2475 (3PT) 7.5 in 15.0 feet (4.6 meters)
1500-2607 (3PT) 7 in 15.2 feet (4.6 meters)
1500-3006 (3PT) 6 in 15.0 feet (4.6 meters)

Great Plains Mfg., Inc.

Drill Width Charts (continued)

Model 2000/2010/2020 Spacing Width

2000-2410 (3PT) 10 in 20.0 feet (6.1 meters)
2000-3008 (3PT) 8 in 20.0 feet (6.1 meters)
2000-3275 (3PT) 7.5 in 20.0 feet (6.1 meters)
2000-3407 (3PT) 7 in 19.8 feet (6.0 meters)
2000-4006 (3PT) 6 in 20.0 feet (6.1 meters)

Model Spacing Width

2400-2810 (3PT) 10 in 23.3 feet (7.1 meters)
2400-3608 (3PT) 8 in 24.0 feet (7.3 meters)
2400-3875 (3PT) 7.5 in 23.8 feet (7.3 meters)
2400-4007 (3PT) 7 in 23.3 feet (7.1 meters)
2400-4806 (3PT) 6 in 24.0 feet (7.3 meters)

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Passcode

The “P-WORD” function allows you to protect:

- the total acre count,

- pulses per 400 feet and

- width
settings with a 4-digit passcode. This prevents accidental
and malicious changes to those settings. As provided by
the factory, the passcode feature is disabled, and you
can modify those function values at any time.

Press the button until the “P-WORD” LED is lit. The
display reads either:
“Ent” (enter passcode) or
“dIS” (passcode disabled)

Enable and Set Passcode

The P-WORD display must show “dIS” in order to enable
and set a passcode on a unit which presently has no
passcode (see below for changing an existing
passcode).

Refer to Figure 8

Use the UP and DOWN buttons to select a passcode in
the range 0001 through 9999 (0000 disables).

Press button to accept the passcode. If the module
enters sleep mode before you press the button, the

passcode is not set.

Note: The protected function values remain unprotected

until the next time the module enters sleep mode.

Installation Instructions 9

Figure 8

Password Presently Disabled

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Using a Passcode

If the P-WORD display shows “Ent”, a passcode must be
entered, or the protected function values cannot be
changed.

Refer to Figure 9

Enter the passcode using the UP and DOWN buttons.
When your passcode is displayed, press the button to

test the passcode.

If the passcode is correct, you can change the protected
settings.

The protected settings are unprotected, and the
password remains viewable in the P-WORD display
function, until the module next enters sleep mode. When

button is next pressed, the passcode is again required

to change protected settings.

If the entered passcode is not correct, the protected
settings cannot be changed. When the “P-WORD”
function is selected again, “Ent” appears in the display.

Figure 9

Password Prompt “ENT”

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10 Electronic Acremeter

Changing the Passcode

To change an existing passcode, first enter the existing
password as described in ““Using a Passcode””.

Refer to Figure 10

While still in the P-WORD function display, select a new
passcode using the UP and DOWN buttons.

Press and hold the button until the “SEt” (setting
password) appears in the display. Release the button.

The number in the display is your new password. Be sure
to record it.

To disable the passcode, set the new password to 0000
(press and hold both UP and DOWN to do this quickly).

Press and hold the button until “dIS” (passcode
disabled) appears in the display.

If the passcode is forgotten, it can be disabled by
removing the batteries. In rental or managed commercial
operations, it is recommended that a tamper-evident seal
be affixed to the rear plate of the acre counter (securing
the battery compartment).

Great Plains Mfg., Inc.

Figure 10

Password Change Prompt

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Battery Replacement

The battery operated acre counter uses 3 AA-size
alkaline batteries. Although the batteries typically last
between 5 and 10 years, they should be inspected
annually, as low batteries can leak corrosive chemicals,
and damage the electronic acremeter.

If battery replacement is needed, the acre counter
displays “LobAt” (low battery).

For battery inspection or replacement, dismount the acre
counter from the implement and remove the 4 screws on
the back of the case. This will separate the housing from
the rear plate. Replace the batteries with 3 high quality
AA alkaline batteries.

Note: The module is dust and splash resistant, but under

no circumstance should it be submerged in any
conductive, corrosive or flammable liquid.

Installation Instructions 11

Figure 11

Replacing Batteries

Figure 12

Replacing Batteries

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