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844E Sprayer Control
User Program Tip
User Programmable Tip
Default = 0.00
While in the User Programmable Tip step, the symbol will be fl ashing above the P tab at the bottom of the
display.
In some cases you may fi nd that nozzles other than those pre-programmed for the 844 Sprayer Control will need
to be used. If one of the eleven pre-programmed tips do not meet your needs, this programming step allows the
user to manually program a tip.
Use the or key to adjust fl ow rate in US Gallons Per Minute (Liters Per Minute) {Imperial Gallons Per
Minute} at 40 psi (2 bar). Pressing the and keys simultaneously will clear the value to zero. To accept the
value, press the key to advance to the next programming step.
The fl ow rate information for the tip is only used to calculate the pressure reading for fl ow based controls. With
non-linear tips, the calculation would be incorrect. Therefore we recommend a “0.00” setting for non-linear tips so
that the pressure will read “0” at all times, instead of an inaccurate pressure. Non linear tips should not be used
with pressure based controls. Pressure based controls use the tip fl ow rate information to adjust the pressure
to achieve the right application rate based on the size of the tips. With non linear tips, there is no way for the
controller to accurately calculate what the pressure should be at various speeds.
WARNING: If the user is using tips other than the TeeJet®‚ VisiFlo® brand, the corresponding colors may not
match. In this case, the user should determine the flow rate of the tip being used at 40 psi (2 bar), and
enter this flow rate as the programmable tip.
NOTE: The flow rate will be automatically displayed at 40 psi (2 bar). This pressure must be used for determining
your tip’s flow rate. Actual operation pressure is not important.
When the correct nozzle fl ow rate has been entered, advance to the next programming step by pressing the
key.
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