21
844E Sprayer Crontrol
98-70006 R3
Sensor Type
Flow Meter or Pressure Based
Default =
FLO
The 844 system can be used with either a
fl
ow meter, pressure transducer or both. This step tells the computer
which sensor you will be using on your sprayer to control the
fl
ow regulation.
The default value is set for a “
FLO
” based system using a
fl
ow meter. If this is what you have installed on your
sprayer, then press the
key to advance to the next step.
If, you have installed a pressure transducer instead, use the
or
key to select “
PrS
” for a pressure based
system. Then, press the
key to advance to the next step.
If both sensors have been installed on the sprayer, this step will determine which sensor will be used by the 844
to determine pressure/
fl
ow regulation. If “
FLO
” is selected, the
fl
ow meter will be used to control the
fl
ow and the
pressure transducer will be used only to display the actual pressure. If “
PrS
” is selected, the pressure transducer
will be used to control the
fl
ow and display the actual pressure. The
fl
ow meter signals will be ignored.
Flow Meter Calibration
Flow Meter Pulses
Default =
650
During the Flow meter Calibration Step, the
symbol (
fl
ow meter turbine) will be
fl
ashing at the top of the
console display.
First, locate the factory
fl
ow meter pulse rate tag on the
fl
ow meter. If this varies from the default value of the
console, use the
or
keys to modify the value. Pressing the
and
keys simultaneously will clear the
value to zero. In some cases, larger
fl
ow meters with small calibration numbers will include decimals for greater
accuracy. To add a decimal to the 844 calibration number, press the Auto/Man key.
If you are not using a
fl
ow meter, but are using a pressure transducer instead and have selected “
PrS
” in the
previous step, this step will not appear.
NOTE: This flow meter number represents the number of pulses per liter of liquid. The 844 console makes all of
the necessary conversions if using units other than metric. The same calibration number will be used for
all units.
