2 - Operation
2.4
Automatic Rate Control
Select 'AUTO' from the 'MAIN' screen. The flow rate will be automatically adjusted as
forward speed varies, to ensure that the application rate constantly matches the
preset target rate.
2.4.1
Setting the Target Application Rate
From the "MAIN" screen simply key-in the desired target rate and press .
2.4.2
Overriding the Target Application Rate
Press to override the target rate.
The preset target rate can be overidden in ±5% steps while spraying, e.g. over
localised weed infestation or other crop conditions.
While overidden, the target rate indicator
will flash.
Press
t o return to the target rate.
NOTE :
The instrument will automatically alarm if the flow rate/forward speed goes above or
below the limits programmed via the 'SETUP' menu.
When the alarm threshold is reached first of all the screen will change to show the
alarm screen and the message "
FLOW LOW
" or "
FLOW HIGH
" is displayed The
instrument will beep continuously. Press any of the lower 'OK' keys to cancel the
alarm screen and return to the 'MAIN' operating screen. An alarm bell icon in the
upper right hand corner of the screen will continue to flash and the instrument will
beep every 5 seconds to remind you of the alarm condition.
NOTE:
If the instrument flashes the alarm bell icon as above, at any time you can re-identify
the cause of the alarm by pressing the key on the INFO screen.
2.5
Manual Rate Control
You do not normally need to select this mode, however in the event you experience a
problem with automatic control (if for example the forward speed sensor had stopped
working), you can still control the application rate manually.
Select 'MAN' from the 'MAIN' screen. To maintain the required application rate, you
must maintain a constant forward speed. You can also log and store field data ("job
summaries") as you go, and print them out or download them to a PC or printer when
convenient.
Press to adjust the application rate.
NOTE :
The speed range indicator functions as normal, however there is no forward speed or
flow rate alarm in manual mode.
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