TeeJet 844-E Sprayer Control - Manual (Page 21)

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98-70006-ENUS R4
844-E Sprayer Control
regulation adjustment Speed
Default = 9.5 (byp Mode)
While in this step, the regulator symbol will be flashing at the top
of the console display. This step allows you to regulate the speed of the
pressure regulating valve to accommodate different application needs.
Operating conditions may necessitate a higher or lower response
speed for the regulating valve. To change the response time number,
simply use the Plus key and Minus key to increase or decrease
the number. Any number between 0.0 and 9.9 can be selected. The
first digit sets the speed for the coarse adjustment in relation to a large
percentage outside of the target application rate. The second digit sets
the speed for the fine tune adjustment in relation to a small percentage
close to the target application rate.
9.5
Coarse adjustment Fine adjustment
If your system is plumbed in a bypass mode, the valve speed number
of 9.5 works very well in most applications.
If your system is plumbed in a throttling mode, start with a valve speed
number of 3 and adjust the number according to your application
requirements. Low flow situations will require a slower response time.
Adjusting agitation volumes to accommodate the regulating valve to
work in a more fully open position allows for a faster response time,
with little to no searching.
To accept this value and advance to the next step, press the Program
key .
NOTE: This speed value can be adjusted to optimize system
performance. If you notice that the valve seems to “search” for
the programmed application rate by cycling the pressure up
and down continuously, reduce the number until the “searching”
is minimized or eliminated. Conversely, a higher number will
increase the valve response speed and speed up the rate of
adjustment.
Control Valve type
Boom Control Valve Type: 2-Way/3-Way
Default = 2 Way
While in this step, the regulator symbol will be flashing at the top
of the display. The programmable information (2 Way or 3 Way) will be
displayed at the left in the console display.
This programming step is used to distinguish the type of on-off boom
control valves you have on your system. There are two types of valves
that can be used, 2-way control valves or 3-way control valves.
A 2-way control valve is simply an on/off valve. Flow is either directed
to the boom section(s) or it is blocked or diverted away from the booms.
A 3-way control valve is know as a by-pass valve. Flow continuously
passes through this valve. When the valve is activated (on), flow is
directed to the boom section(s). When the valve is not activated (off),
flow is directed through a bypass port, back to the supply tank.
If you are using the 3-way type of boom control valves in your system,
change the value using the Plus key or Minus key .
Press the Program key to accept the value and advance to the next
programming step.
If the default value is correct, press the Program key to accept the
value and advance to the next programming step.
NOTE: If using 3-way, bypass boom control valves, refer to the
instruction manual of the valve you are using for proper
calibration instructions.