22
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
•
Speed
•
Flowmeter
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.
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 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 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 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 sprayer tank with a known quantity of water, at
least 100 US gallons (380 L).
Note: If you park the sprayer on a flat, level surface and
fill the tank until the water over flows out of the top of
the tank, you will have 164 US gallons (621 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.
3. Set the pump switch to the On position to start the
pump.
4. Set all three boom switches and the master boom switch
to the On position. Run the booms only until the air is
purged from the line, then turn them off using the
master boom switch.
5. Turn the selection dial to the Total Volume position.
6. Press and hold [RESET] until the display reads “0.”
7. Set the master boom switch to the On position and run
the booms until all the water is out of the tank, then stop
them using the master boom switch.
8. 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.
9. With the selection dial set to the Total Volume position,
press and hold [CAL] until the monitor displays “CAL
HOLD” and the red light on the monitor illuminates.
The display will alternate between the total volume
value and the flow calibration value.
10. When the total volume value is displayed, use the [+] or
[–] buttons to change it to the amount of water you put
in the tank.
11. When the display begins alternating again, the flow
calibration value will have changed; write this number
down and save it. This is the calibration value for your
sprayer.
