Raven Hawkeye, Operation Manual

Page: 60 / 138

C
HAPTER
5
50 ISO Product Controller II and Hawkeye Operation Manual
ON-SCREEN OVERRIDE
NOTE: The override button will only be displayed if an optional Raven ISO Switch Box is not detected on the
ISOBUS. If a switch box is detected, use the switch box to manually control implement sections or to
enable the override feature.
Use the override button at the bottom of the Hawkeye
®
home screen to override all sections for the configured
override time. After the override time expires, the task controller will resume automatic operations based upon
previous section coverage.
Refer to the Tools Menu Settings Definitions section on page 22 for additional assistance with the override
seconds setting if necessary.
SYSTEM EFFICIENCY
This information is only available when less than three injection pumps are on the system.
Normal operating values should be between 90 - 105% for various sprayer models. System
efficiency may change slightly in a turn when the turn is tighter than the spray boom is capable of without some
nozzles operating at the set minimum nozzle PWM (minimum NCV duty cycle). System efficiency generally
increases when NCV duty cycle drops below the expected theoretical value, indicating more than expected flow is
being provided for an expected NCV duty cycle at a given target rate, pressure, and tip size. Examples include
when there is a leak, tip size is programmed too large, flowmeter calibration value is too low, pressure calibration
value is too high, a poppet is stuck open or excessively worn, a fencerow output is turned on, or a spray tip is
excessively worn or missing. System efficiency generally decreases when NCV duty cycle is higher than the
expected theoretical value indicating less than expected flow is being provided for an expected NCV duty cycle.
Examples include a boom valve not opening, a tip size programmed too small, flowmeter calibration too high,
pressure calibration value is too low, a poppet is stuck closed or not opening completely, or a spray tip is
obstructed.
NCV PWM STATUS
This information is only available when less than three injection pumps are on the
system. Values for High, Avg, and Low should increase or decrease as expected for
changes in speed, target rate, in a turn, and when a flow offset is enabled. Values go to
zero when master switch or all boom switches are off. Values should be the same as
what the outermost operating NCV reports for Duty Cycle%. Values turn red when
NCV’s are at their maximum and minimum outputs. Maximum output may not be 100% due to maximum output
capabilities of the NCV’s for a given tip size and system efficiency. Minimum values should be the same as the
minimum nozzle PWM value or the innermost operating NCV in a turn.