TeeJet 844-R Speed Compensated Application Control - Manual (Page 9)

98-05047 9
R0
T
HE
S
PRAYING
O
PERATION
The sprayer tank is filled and the solution thoroughly mixed. The application rate
and proper nozzles have been determined. The controller has been
programmed with the sprayer and application information.
Turn the control console on by pressing the
P
RO
key.
The Auto/Man key should be switched to “AUTO”.
In the Auto mode, when the Delivery switch is “OFF”, the target application
rate as well as the target symbol is displayed on the console display.
When the Master boom switch is “ON”, the actual rate is displayed and the
target symbol no longer appears.
While spraying with the Delivery switch “ON”, the display always displays
the actual application rate, vehicle speed, application area covered/total
volume applied and calculated pressure. Note: If the application system is
equipped with pressure gauge, the pressure gauge may read differently
than the calculated pressure shown on the console. This does not
necessarily indicate a problem.
As you get to the point where application will begin, turn the Delivery
switch to the “ON” position. This activates the delivery pump. Moderate
changes in vehicle speed don’t affect your application rate, because such
changes are compensated for with automatic pressure adjustments by the
controller.
If it is necessary to stop, turn the Delivery switch to “OFF”.
Alarm warnings may occur momentarily while the pressure regulating valve is
searching for a new setting after a significant speed or rate change. However, if
the alarm stays on for a longer time, the valve may have reached its limit and
your system is unable to regulate flow beyond the limit.