Hardi NAVIGATOR 3000, Operator'S Manual, Page: 21 / 122

3 - Description
19
Regulation Valve Function Diagram
˜
ATTENTION! Auto mode icons shown, but could be Manual or
Increment steps icons, depending on driver selection.
Spray job begins
Start condition:
Controller is turned OFF. Pump is turned OFF.
Pressure SmartValve to Pressure draining/TurboFiller, suction
SmartValve to Main tank, have water in Main tank.
Driver action
Turn the controller ON.
Controller reaction
Controller detects no pressure or flow.
Starts in auto mode. Sets regulation valve to safe angle, to
avoid overpressure at pump start and to ensure that software
detects that pump is started (avoid hanging).
Driver action
Turn the pump ON.
Controller action
Controller detects no pressure or flow, Stay in safe position.
Driver action
Turn pressure SmartValve to Spraying.
Controller reaction
Headland (boom is closed)
Software use nozzle size and feed forward to
prepare for opening of boom.
Max. pressure limit is disabled, because last
saved nozzle size is reliable and therefore
software “dare” to close regulation valve
completely.
Headland (boom is closed)
for over 5 min
Boom is closed for a longer
period, that operator could
have changed to other nozzle
size. Last saved nozzle size
become unreliable.
Software enable max. pressure
limit.
Controller reaction
Headland (boom is closed)
Controller detects pressure at armature and bypass flow back
to tank. Software use last saved nozzle size and feed forward
to prepare for opening of boom.
Max. pressure limit is enabled, because last saved nozzle size
is unreliable and therefore software will not close regulation
valve completely. PrimeFlow booms are primed.
Driver action
Turn main OFF at headland. (go up)
Turn main ON to spray. (go down)
Driver action
Turn main OFF at headland. (go up)
Turn main ON to spray. (go down)
Controller reaction
Spraying (boom is open)
Boom is open and sprays.
Both flow measurement and pressure
measurement are good, and the actual
nozzle size is calculated.
The actual nozzle size is used to adjust to
correct gal/acre.
Flow and pressure are
good
Both flow measurement and
pressure measurement are
good.
Software disable max. pressure
limit.
Controller reaction
Spraying (boom is open)
Boom is open and sprays.
Software use last saved nozzle size and pressure sensor to
adjust to correct gal/acre.
Max. pressure limit is enabled to avoid overpressure in case
operator had changed to smaller nozzles.