OPERATOR’S MANUAL
AFILT
Noisy feedback sensors cause the APR’s to randomly jump. AFILT value
indicates the amount of feedback noise rejection. The smaller the number,
the greater the filtering. Decreasing the AFILT can reduce the problem but
also can cause the system to become more sluggish. Typically this value
does not require adjustment.
GRANULAR DROP TEST CALIBRATION
The Drop Test determines the spreader constant for a given granular
material. The spreader constant is the number of pulses generated by the
application rate sensor per pound of granular material discharged. A
separate calibration routine must be run for each granular material used.
During a calibration the control system runs the conveyor/auger mechanism
dispensing material while the vehicle is stationary. When a sufficient amount
of material has been discharged, the operator stops the spreader
mechanism, weighs the material discharged, and enters the amount at the
Calibration screen. The system then calculates, stores, and displays the
spreader constant.
DROP TEST PREPARATION
1.
Load the vehicle hopper with the desired material and verify the gate
height is adjusted to the proper setting on the V-Box spreader. If
tailgate spreads are in use, ensure auger is full.
2.
Load enough material to provide a uniform flow throughout the
calibration procedure.
3.
Position a suitable container or drop cloth to catch all dispensed
material from the conveyor/auger. The container must be large enough
to obtain a good, representative sample. The larger the sample
weighed, the better the accuracy. Alternatively, if a vehicle scale is
available, weigh the truck before and after dispensing material.
4.
System is ready for calibration drop test.
PERFORMING A GRANULAR DROP TEST
NOTE: Steps 1 and 2 are performed
when a granular drop test is
initiated from the F6 Calibration
screen.
1.
At the System Calibration screen (F6), select the Granular Drop Test
and follow the onscreen instructions.
2.
At the Granular Calibration screen, select and press the corresponding
number (1-4) of the appropriate material.
A warning message indicates material will dispense when the
procedure is started. Ensure all personnel are clear before starting
the next step.
IMPORTANT: If a gate height sensor is installed, verify the gate height
sensor selection is enabled at the (F9) Accessory
Sensor screen before performing the drop test.
106 / CALIBRATIONS
Flex4 Pro
TM
Control System
6010541 Rev A
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