ARAG bravo series 400S Quick start guide

4674A9DX0.950
400S brAvo SerieS computer
with integrAteD gpS nAvigAtor
Software rel. 1.0X
inStALLAtion, uSe AnD mAintenAnce

63
 
WARNING:
When Bravo 400S is congured as a GPS GUIDANCE MONITOR (chap. 9) it does not control the valves: any intervention must be
made separately. For valve control see the relevant instruction manual.
The opening / closing of sections must be notied to Bravo 400S with the dedicated switches (par. 12.2) to provide information
on the activity in the eld manually. In this way, Bravo 400S will collect data on the job.
12.1 Controls on computer
Fig.229
Legend:
1Control and display mode keys
2Function keys.
Function keys are contextual: the function of each depends on what appears
on the display, therefore the use of these keys will be illustrated during the
description of the corresponding procedures.
3Operating switches for control unit valves
4Operating switches for oil-hydraulic functions (hydraulic valves)
USE

64
12.2 Operating switches for control unit valves
WARNING
When Bravo 400S is congured as a GPS GUIDANCE MONITOR (chap. 9) the switches signal the status of each section
but do not control them: any intervention on the valves must be made separately, by consulting the instruction manual of the
relevant control.
Communicating what happens on the eld, Bravo 400S will collect data on the job.
Main control ON Main control OFF
Section operating switches Output
increase
Output
decrease
Open section Closed section
• Switches for sequential control
Opens sections from the last one open Opens sections from the last one open
Closes the sections from the last closed DCloses the sections from the last closed
The valves can be opened and closed from the right to the left and vice versa with the section control switches.
Prolonged pressure opens / closes the sections of half boom.
Examples:
• Closing of one section
• Opening of one section
• Simultaneous closing of half boom sections
• Simultaneous opening of half boom sections
12.3 Operating switches for hydraulic valves
Boom
release
Boom
lock
Boom
clockwise
leveling
Boom
counter-clockwise
leveling
Increase
boom
height
Decrease boom
height
Boom section
movement:
opening
Boom section
movement: closing
Asintheexamplehere,shift
once the switch to the left to close
the rst open section.
Shift several times to close sections
in sequence.
Asintheexamplehere,keep
the switch shifted to the left to close
theboomopenhalf.
Asintheexampleherekeepthe
switch shifted to the right to open the
boomclosedhalf.
Asintheexamplehere,shift
once the switch to the right to
open the rst closed section.
Shift several times to open sections in
sequence.
USE

65
12.4 Guidance screen
When Bravo 400S is congured as a GPS GUIDANCE MONITOR (chap. 9) the display shows a limited amount of information.

Go to “Home”
menu
Conrmation key
Go to job menu
View automatic functions menu
ON / OFF
Aborts a function
Aborts data change
Select job data
displayed on the LEFT side
Select job data
displayed on the RIGHT side
Display zoom adjustment
F3 (+) zoom in, F5 () zoom out
Displays job information / alarms (par. 15.1)
Enable / disable
job function view
Fig.230
F1÷ F8: Contextual function keys
These keys control what is shown on the display (display zoom adjustment, etc., Fig. 230)
When the function list is displayed, they perform specic functions: the function of each key depends on what appears on the display, therefore the use of these keys
will be illustrated during the description of the corresponding procedures.

GPS signal strength: Nozzle selection (par. 13.5)
Section management (par. 13.8)
Output setting (par. 13.2)
Deviation: distance between the position of the tractor
and the track to be followed
Instant output / Target spray rate
Output percentage variation
Every symbol corresponds to a 10% variation:
+ 10% - 10% (max. ± 50%)
Spray number: the reference line is 0, tracks to its
left are negative while tracks to its right are positive.
Machine position
Reference tracks
Sprayed surface
Speed /
Rpm
Enabled alarm
(Press F1for more details, par. 15.1)
Nozzles being used /
Instant owrate
Pressure /
Tank level
Sprayed surface/
Direction
Sprayed quantity /
Calculated surface
Automatic functions status:
Spraying boom (par. 13.7)
Led bar: graphic representation of the deviation
Each Led corresponds to 50 cm distance
DGPS
Signal
GPS
Signal
Invalid
data
Fig.231
USE

66
12.5 Spraying a eld
Let us assume we want to spray a eld
along parallel lines, but only once the
edges of the eld have been sprayed.
Fig.232
• Go the beginning of the eld to be sprayed.
• Switch Bravo 400S on (par 7.2).
After self-diagnostics, Bravo 400S displays
the "Home" screen (Fig. 232).
• Begin a new job, using the function
F3 New job (par. 14.3).
• Enter spraying settings.
When Bravo 400S is congured as a GPS
GUIDANCE MONITOR (chap. 9) the settings
are limited to starting the spraying.

Fig.233
Fig.234
Target rate
- Set the spray rate value for the treatment (Fig. 234).
Press OK to conrm the value.
Fig.235
Fig.236
Select nozzles config.
- Select a nozzle conguration from the list (Fig. 236).
With this data indicate which nozzles are installed on the boom
spraying points (preset congurations in the menu
Spray spots configurations, par. 10.1.1).
- Press OK to conrm.
Fig.237
Fig.238
Map
If there is at least one map (on the internal memory), you can
select a prescription map for the spraying.
According to the position detected by the GPS receiver,
Bravo 400S will use the appropriate spray rate for the area that is
being sprayed (par. 13.3 Importing and using a prescription map).
- Select a map from the list (Fig. 238).
- Press OK to conrm.
Fig.239
Mark A ?
Fig.240
Start job
- Select and press OK to switch to guidance.
USE
CONTINUES
Par.
7. 4
Exit function
or data change
Conrm access
or data change
Scroll
(LEFT /
RIGHT)
Delete
selected
character
Value
Increase /
decrease
Scroll
(UP /
DOWN)
Enter
selected
character

67
Fig.241
• In the job menu, set the tank level with the function F3 Tank (par. 15.3).
• Start spraying by acting on the main control valve switch.
• Start moving along the eld perimeter.

Mark A ?
Mark B ?
Fig.242
• While moving along the perimeter of the eld, you will mark points A and B
(as described in par. 16.7 F7 New AB).
This operation is fundamental for Bravo 400S to guide you,
during spraying, along tracks parallel to the reference track obtained by
marking points A and B.
We recommend marking points A and B while the machine is
moving, at both ends of a straight line that is as long as possible:
the longer the line marked by points A and B, the lower the error
caused by any deviations of the machine itself.
T0
Fig.243
• Once the line from A to B has been marked (T0), it will be possible to
spray the rest of the eld along parallel lines, (Fig. 243), by following the
reference tracks shown on the display (Fig. 244).
T0
Fig.244
At the beginning of a new job Bravo 400S gives driving directions in the "Straight parallel" mode.
To change guidance mode see function F2 Guidance mode (par. 16.2).
> > > 12.5 Spraying a eld
USE

68
"AUTOMATIC FUNCTIONS"
 
Fig.245
To access automatic functions, start a job
(New job, Resume job, Continue last job, chap. 14 "Home" Menu);
in the guidance screen press Auto. When the list is active (Fig. 245), pressing any
key at the side will enable the relevant function.
The table below lists all available job functions and the corresponding function keys:

 F1 Manual selection of NOZZLE A
 F3 Manual selection of NOZZLE B
 F5 Manual selection of NOZZLE C
 F7 Manual selection of NOZZLE D

 F2 ON/OFF automatic adjustment
 F4 Automatic nozzle selection ON / OFF
 F6 Automatic section management ON / OFF
Par.
7. 4
Exit function
or data change
Conrm access
or data change
Scroll
(LEFT /
RIGHT)
Delete
selected
character
Value
Increase /
decrease
Scroll
(UP /
DOWN)
Enter
selected
character

69

13.1 Output adjustment
Bravo 400S can control chemical output with an automatic adjustment function (par. 13.2, DEFAULT:ON).
 
Bravo 400S keeps the set spray rate constant regardless from the changes in speed
and boom section status.
Rate manual regulation shall be carried out with the suitable
switch (par. 12.2).
In this case the spray rate can be set with the function F1 Spray rate (par. 16.1),
or by uploading a prescription map (par. 13.3) from one of the external memories
(SD card or pendrive).
If necessary, during spraying, it is possible to intervene on the dedicated switch
(par. 12.2) to adjust output to crop conditions, increasing
or decreasing momentarily the application rate up to ±50%.
 F2 Enables / disables automatic output adjustment (DEFAULT:ON).

1

2
Fig.246
1In the guidance screen, press Auto.
2Press F2 (Fig. 246) to enable or disable automatic adjustment.
Automatic
adjustment ON
Automatic
adjustment OFF
13.3 Importing and using a prescription map
Fig.247
Bravo 400S can vary output by using the data contained in a "prescription map", which indicates
the exact quantity of uid that must be sprayed at every point in the eld.
The map is created thanks to a special analysis and simulation software. The correct spray rate
is established for every point on the map, in order to obtain the optimal yield from a eld with the
minimum expenditure in terms of materials and time.
To enable Bravo 400S to read and use the collected information, the following is required:
- The prescription map must be in " Shapele ESRI® " format.
- The database eld containing the indication of the spray rate that must be applied
to the different areas must be named "Rate".
- The database may include other elds, provided that these contain exclusively numerical
values (the presence of any alphabetic characters will prevent the database from being
imported correctly).
ESRI®isaregisteredtrademarkofESRI,California,USA
At this point you must transfer the prescription map from one of the external memories (SD card or pendrive) onto Bravo 400S:
• Save the map on one of the external memories.
• Copy the map onto the internal memory, through the menu Maps > Copy to internal memory (from SD card par. 14.4.2, or pendrive par. 14.4.3).
• Select one of the functions in the "Home" menu: F1 Continue last job (par. 14.1), F3 New job (par. 14.3) or F5 Resume job (par. 14.5).
• In the job start screen select the desired prescription map.
• Proceed with the job. According to the position detected by the GPS receiver, Bravo 400S will use the appropriate spray rate for the area that is
being sprayed (Fig. 247).
If the tractor is on a "black" area on the map, i.e., without a spray rate indication, Bravo 400S stops spraying.
Par.
7. 4
Exit function
or data change
Conrm access
or data change
Scroll
(LEFT /
RIGHT)
Delete
selected
character
Value
Increase /
decrease
Scroll
(UP /
DOWN)
Enter
selected
character

70
13.4 How the automatic nozzle selection works (SELETRON system)
In a traditional system, the farming machine speed limits depend on the minimum and maximum pressure of the nozzle in use and on the desired
spray rate.
For instance, if we were spraying 100 l/ha with a violet evenfan nozzle ISO110025, the minimum operating speed shall be 6.9 km/h (corresponding
to a pressure of 1 bar) while maximum speed shall be 13.9 Km/h (corresponding to a pressure of 4 bars).
This operation eld can be restrictive for the features of both crop to be treated and machine.
Operation eld of possible combinations of ISO11002 and ISO110025 nozzles
When automatic nozzle selection is enabled, Bravo 400S (using Seletron devices) will enable the nozzle, or combination of nozzles, according to
the set spray rate and driving speed.
This system allows to widen the machine operating range, i.e. in the above instance, using ISO11002 yellow () and ISO110025 violet () nozzles,
that work correctly at a speed from 5.5 km/h to 24.9 km/h.
Nozzle A
Nozzle B
Fig.248
Fig.249
According to the set data and those detected by the sensors, Bravo 400S selects the suitable nozzle conguration constantly checking that:
- the spraying pressure always remains within the job features set for each single nozzle;
- in case of many possible nozzle congurations, the operating pressure of the conguration in use is as close as possible to the operating range of
the nozzle;
- required number of nozzle changes is as low as possible.
When setting a treatment, make sure to couple compatible nozzles.
Forexample:
• Compatible nozzles:therateat1baroftheISO025nozzleisLOWERthantherateat5barsoftheISO02nozzle(Fig.250).
•NON compatible nozzles:therateat1baroftheISO05nozzleisHIGHERthantherateat5barsoftheISO02nozzle(Fig.251).

Fig.250

Fig.251
In the same way, the overall rate of both nozzles at MINIMUM pressure shall be LOWER than the rate of the high rate nozzle at MAXIMUM pressure.
When setting the treatment (par.12.5 ) Bravo 400S automatically checks the rates and in case the above conditions are not
respected, the computer will display the message Wrong nozzles configuration!


71

 F4  Enables / disables automatic nozzle selection on all spraying points(DEFAULT:ON).

1

2
NOZZLE A
NOZZLE B
NOZZLE C
NOZZLE D
Fig.252
1In the guidance screen, press Auto.
2Press F4 (Fig. 252) to enable or disable automatic selection.
Automatic selection
ON
Automatic selection
OFF
Enabled nozzle Disabled nozzle
The number of nozzles displayed in (par. 10.1.1) will vary according to the
spraying point setting Fig. 252.
 F1/F3/F5/F7
Manual nozzle selection
Allows to select manually nozzles A, B, C, D in use on the spraying points.
This function is enabled ONLY when automatic nozzle selection is disabled (par. 13.5).

1

2

3D






NOZZLE A
NOZZLE B
NOZZLE C
NOZZLE D
Fig.253
1In the guidance screen, press Auto.
2Press F4 to disable automatic nozzle selection (par. 13.5 F4 Automatic nozzle selection ON/OFF).
3Press the button next to the nozzle (Fig. 253) to enable or disable the corresponding nozzle.
Enabled nozzle Disabled nozzle
The number of nozzles displayed in par. 10.1.1 will vary according to the
spraying point setting Fig. 253.
Par.
7. 4
Exit function
or data change
Conrm access
or data change
Scroll
(LEFT /
RIGHT)
Delete
selected
character
Value
Increase /
decrease
Scroll
(UP /
DOWN)
Enter
selected
character