Raven ISOBUS Product Control - Tiered Boom Settings

APPENDIX 8
60 ISOBUS Product Control Installation & Operation Manual
• Nozzle Spacing_________ inches [cm]
From this information, calculate the volume per minute per nozzle as follows:
where NVPM = Nozzle Volume per Minute (gallons/acre [lit/ha]), Rate = target application Rate, Speed = target
Speed of application, and NS = Nozzle Spacing.
FOR EXAMPLE:
Application Pressure = 30 PSI, Target Application Rate = 20 GPA, Target Speed = 5.2 MPH, and Nozzle Spacing
= 20 inches
Using the calculated nozzle volume per minute of 0.35 at an application pressure of 30, select a boom nozzle
which comes closest to providing the desired output.
TIERED BOOM SETTINGS
A tiered boom configuration has two or more booms stacked - one directly in front of the other - and may or may
not have different sets of nozzles capable of applying different rates. Specialized plumbing, cabling, and a relay
box are required to utilize a tiered boom configuration. Generally, sprayers are not set up for this feature from the
factory.
The boom tiers are connected to shut-off valves, which are controlled by an ISObus product controller. This
configuration allows the machine to control a much wider range of application rates than a standard, single boom
configuration.
For example, a low application rate may be applied by turning on the first tier sections only. Higher application
rates may be applied by switching to the second tier booms with larger nozzles. A third and an even higher rate
can be achieved by using both boom tiers in tandem.
NOTE: The spray tips used on a tiered boom system must be extended range tips. In addition, the volume
per minute of the second tier tips should not exceed 1.5 times the volume of the first tier’s tips. The
tier switching points should be set to 80% of the full flow volume for the boom tier tips.
To access the Tiered Boom Settings screen:
1. Touch the Tools Menu icon on the Home screen.
2. Select the Product Control icon from the System submenu.
3. Select the Tiered Boom Settings button on the screen.
NOTE: The tiered boom feature is not available in a granular control mode. Be sure that the configuration
screen is set to a control channel set to control a liquid product application.
The following settings may be configured on the Tiered Boom Settings screen:
Tier 1 Max - Set the desired maximum rate applied through the first tier boom sections.
Tier 2 Max - Set the desired maximum rate applied through the second tier boom sections.
NVPM
Rate Speed× NS×
5 940 60 000,[],
--------------------------------------------------
=
NVPM
20 5.2× 20×
5 940,
------------------------------- -
0.35==