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844E Sprayer Control
Flow Rate Feature
The 844 Sprayer Control will measure a fl ow rate moving through the fl ow meter in GPM (LPM) {Imp GPM}. This
feature is activated by pressing and holding the key while spraying in the normal operating mode. The fl ow
rate display replaces the area/volume display in the lower right portion of the display.
Any time the key is pressed while spraying in the normal operating mode the fl ow rate will be displayed.
Releasing the key will cause the display to return to area/volume.
This feature can be used for tip calibration or for calibrating the fl ow meter. Refer to page 45 of this manual for
fl ow meter calibration procedures.
NOTE: Not all 844 models contain this feature. If the display makes no change when pressing on the key
while spraying in the normal operating mode, then this feature is not available with this console.
Application Alarm
If the 844 senses a continuous discrepancy of 10% or more between the Target Application Rate and the Actual
Application Rate, the application rate units (GPA, G/1000 ft
2
or l/ha) will fl ash in the display window. This alarms
the operator to a problem with the sprayer plumbing, operation or programming.
No Flow Alarm
If the 844 stops receiving pulses from the fl ow meter, the symbol will fl ash at the top of the display. This alarm
indicates that the fl ow meter has stalled and alerts the operator that there is a problem with the fl ow meter or
elsewhere in the system.
This alarm will occur only when the Master Boom Switch and at least one boom toggle switch is “on”.
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