Great Plains ADC2220 Operator Manual - Manual (Page 127)

Great Plains Manufacturing, Inc. Table of Contents Index Appendix C - Vintage Carts 123
2012-10-17 Table of Contents Index 167-073M
Operating Instructions–Blockage Option
The blockage-monitoring system has three modes:
test, calibrate and operate.
Normally, the system is in operate mode. Test and
calibrate are special modes used to test the blockage
sensors and calibrate the sensors to your seed. This
section explains when and how to use each mode.
Test Mode
After installing the blockage-monitoring system, use the
test mode to make sure all sensors and modules are
connected correctly. To test the blockage modules and
sensors:
1. Park the drill. You can enter the test mode only if
ground speed is less that two mph or the clutch is
disengaged.
2. Set the displayed function to “FLOW” by pressing the
up or down key.
3. Press and hold the ACK button. The monitor gives
four short beeps then one long beep. Release the
button.
4. The readout then displays “TEST” or “TST OK” on
the top line. The system is now in the test mode.
5. On the lower line, the readout displays in order each
module number and the number of sensors that
module is set to monitor. For example, if the monitor
reads “4.11,” the blockage module at address four is
set to monitor 11 seed hoses. As the test continues:
• If the monitor is still trying to communicate with
each module, the top line shows “TEST.”
• If the monitor can communicate with the number
of sensors set for each module, the top line shows
“TST OK”.
• If the monitor cannot communicate with a
blockage module, the module number is
displayed, but its sensor digits are blanked.
• If the monitor cannot communicate with the
module after several attempts, an alarm sounds.
Silence the alarm by pressing the ACK button.
The message “BLKERR” and the number of the
problem module flashes briefly every few seconds.
Check that the modules and monitors are wired
correctly. Check that each module has the correct
address-switch setting. Refer to the installation
instructions included with the option package.
Calibrate Mode
Before using the blockage monitors, you must calibrate
the sensors for your seed and seeding rate. During the
calibration mode, the blockage modules measure and
record the seed-flow rate for each one-inch seed hose.
This stored value is used during the operate mode to
determine when hoses are blocked. You must calibrate
the system whenever you set a new seeding rate or
change your seed type.
To calibrate the blockage monitors:
1. Set the displayed function to “FLOW” by pressing the
up or down button.
2. Press and hold the ACK button. The monitor gives
four short beeps then one long beep. Release the
button. The monitor displays “TEST” or “TST OK” on
the top readout.
3. Lower drill, pull forward and beginning seeding.
When the monitor detects motion, it double beeps
and displays “CAL” on the upper line. The system is
now in the calibrate mode.
4. During calibration, the monitor display cycles
through module and run numbers as flow information
is recorded. Module and run numbers displayed are
for hoses that have not yet calibrated.
5. Calibration is complete after about two or three
minutes of continuous seeding. Any hoses that have
not calibrated in this time probably are blocked. Stop
the drill and clear any blockages, then proceed with
seeding to finish calibration.
Note: Stopping the drill to clear blocked runs does not
upset the calibration process. When motion stops,
the monitor suspends calibration until 30 seconds
after motion resumes.
6. When all runs on the module have calibrated, the run
number will be replaced with two dashes. For
example, “3.--” indicates that all runs on module
three are calibrated. When all runs on all modules
have calibrated, “CAL OK” will be displayed on the
top line and the monitor will beep rapidly several
times.
7. Press ACK to end the calibration mode and restore
normal monitor operation, including flow monitoring.
Note: To prematurely exit to the calibration mode, hold
the ACK button for five beeps. Any sensors that
have not yet calibrated will generate flow errors.