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844E Sprayer Control
Regulation Adjustment Speed
Coarse Regulation Adjustment Speed
Default =
9
While in this step, the
symbol will be
fl
ashing 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
and
keys to increase or decrease the number. Any number
between 0 and 9 can be selected. This digit sets the speed for coarse adjustments in relation to a large
percentage outside of the target application rate.
If your system is plumbed in a bypass mode, the valve speed number of 9 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
fl
ow 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
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.
Fine Regulation Adjustment Speed
Default =
5
While in this step, the
symbol will be
fl
ashing 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
and
keys to increase or decrease the number. Any number
between 0 and 9 can be selected. This digit sets the speed for the
fi
ne tune adjustment in relation to a small
percentage close to the target application rate.
If your system is plumbed in a bypass mode, the valve speed number of 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
fl
ow 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.
