844-AB Sprayer control 23
Software 4.03
Target Application Rate
The application rate units (e.g., GPA, L/Ha)
will flash during the Target Application Rate
step. Press the Plus or Minus keys to adjust
the value of the target application rate.
Pressing the Plus and Minus keys
simultaneously will clear the value to “0”.
Press the Program key to advance to the next
step.
Figure 7-4: Target Application Rate
9
9 9
9.0
.0.0
.0
3.6
3.6 3.6
3.6
Km/h
BAR
1
2 3
4
5 6
7
8
9
10
11
12
3
3 3
3
L/Ha
Calculation Diagnostic
THIS STEP IS USED FOR DIAGNOSTIC
PURPOSES ONLY. It has no affect on the
operation of the 844-AB. This diagnostic tool
will allow the operator to adjust the indicated
pressure to see what affect, if any, it would
have on operating speed. The operator can
also adjust the speed to see what pressure is
required to maintain the target application
rate. This process will help determine if the
correct nozzle configuration was chosen for
the application. While in the calculation step,
either the pressure or speed units will flash.
Adjust Pressure
If an approximate operating pressure is
known, use the Plus or Minus keys to adjust
the value.
The 844-AB will determine what operating
speed is required to achieve the target
application rate at the entered pressure. If the
speed is too high, a set of smaller nozzles is
necessary. If the speed is too low, a set of
larger nozzles is necessary.
Figure 7-5: Adjust Pressure
9
9 9
9.0
.0.0
.0
3.6
3.6 3.6
3.6
Km/h
BAR
1
2 3
4
5 6
7
8
9
10
11
12
3
3 3
3
L/Ha
Adjust Speed
If an adjustment to the speed setting is
required, press the Program key once. The
speed units will flash. Use the Plus or Minus
keys to adjust the speed to the desired value.
The 844-AB will calculate the required
pressure to maintain target application rate at
the entered speed. If the pressure is too high,
a set of larger nozzles is necessary or the
speed must decrease. If the pressure is too
low, a set of smaller nozzles is necessary, or
the speed must increase.
Figure 7-6: Adjust Speed
9
9 9
9.0
.0.0
.0
3.6
3.6 3.6
3.6
Km/h
BAR
1
2 3
4
5 6
7
8
9
10
11
12
3
3 3
3
L/Ha
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