25
Calibrating the Spray Pro
Monitor
The Spray Pro monitor has a calibration mode that allows
you to change various settings to customize the display
and calibrate the monitor to your needs. You can calibrate
or change the following settings:
•
Boom Width
•
Units of Measure
•
Flowmeter
•
Distance
Setting the Units of Measure
The default setting for the units of measure is US. You
can also change the units to SI (metric) or TURF.
1. Stop the vehicle and set the parking brake.
2. Set the master spray lever to the Off position. The
monitor displays ”HOLD.”
3. Press and hold [CAL] until the monitor displays “CAL
HOLD” and the red light on the monitor illuminates.
4. Turn the selection dial to the Units of Measure
position.
5. Use the [+] or [–] buttons to select desired units of
measure.
6. Press [CAL] until the red light turns off. You can also
exit calibration mode by driving the vehicle.
Setting the Boom Width
The default settings for the boom widths are 80 inches
(200 cm) for the right and left booms and 60 (150 cm) for
the center boom. This is based on 4 nozzles on the right
and left booms and 3 on the center boom all spaced
20 inches (50.8 cm) apart. If you change the spacing of
the nozzles, you should change the boom width to reflect
your changes as follows:
1. Stop the sprayer and set the parking brake.
2. Set the master boom switch to the Off position. The
monitor displays ”HOLD.”
3. Press and hold [CAL] until the monitor displays “CAL
HOLD” and the red light on the monitor illuminates.
4. Turn the selection dial to the Total Area position.
5. Use the [+] or [–] buttons to select the boom for which
you wish to change the width, where 1 is the left
boom, 2 is the center boom, and 3 is the right boom.
6. Turn the selection dial to the Sub Area position.
7. Use the [+] or [–] buttons to change the boom width as
needed.
8. Repeat steps 4 through 7 for the other booms as
needed.
9. Press [CAL] until the red light turns off. You can also
exit calibration mode by driving the sprayer.
Calibrating the Flowmeter
The Spray Pro comes approximately calibrated for the
flowmeter. Complete the following procedure to fine tune
the flowmeter calibration:
1. Set the parking brake.
2. Fill the tank with enough water to prime and purge the
system.
3. Prime and purge the system.
4. Set the pump switch to the On position to start the
pump.
5. Fill the sprayer tank with a known quantity of water, at
least 100 US gallons (380 L).
Note: If you park the vehicle on a flat, level surface
and fill the tank until the water over flows out of the
top of the tank, you will have 200 US gallons (760 L).
Note: Do not rely on the marks on the side of the tank
for measuring the water for this procedure. They are
approximate measurements, but not accurate enough
for this calibration.
6. Set all three boom switches to the On position and the
master boom switch to the Off position.
7. Turn the selection dial to the Calibration Volume
position.
8. Press and hold [RESET] until the display reads “0.”
9. Set the master boom switch to the On position and run
the booms until the water level is down to the sump.
Turn the master boom switch off just before the
suction tube draws air, then stop them using the master
boom switch.
10. Compare the volume displayed on the monitor to the
volume of water you put into the tank.
•
If the volumes are the same, you do not need to
calibrate the monitor any further.
•
If the values are different, continue with the rest of
this procedure.
11. Press and hold [CAL] until the red light on the monitor
illuminates.
The display will alternate between the flowmeter
calibration value (indicated by the word”CAL” on the
monitor) and the calibration volume.
