Useful Information
General
35
UNITS OF MEASURE
1 foot = 12 inches 1 mile = 5280 feet
1 inch = 2.54 cm 1 acre = 43560 sf
1 meter = 100 cm 1 hectare = 10,000 sq. meters
1 km - 1000 m 1 cup = 8 oz.
1 pint = 2 cups 1 quart = 2 pints
1 gal. = 4 qts. 1 gal = 128 oz.
EQUATIONS
Flow Rate = Speed x Spray Rate x Width
Constant
American English (Width is in feet and constant = 495)
Metric (Width is in meters and constant = 600)
Total Liquid = Number of flow pulses/flow calibration
(Multiply by 3.78 for metric.
Distance = Number of speed pulses x speed calibration
(Divide by 12 for English)
Area = Distance x Width
Constant
American English (Distance and width are in feet and constant
= 43560.
Metric (Distance and width are in meters and constant =
10000.
VERIFYING COUNTS
Temporarily enter a flowmeter calibration of 10.0. Clear
TOTAL LIQUID to zero. Temporarily disconnect flow sensor
cable. Use a clip lead or other jumper wire (paperclip bent
in a “U”) and short together the two outside pins of the
main harness flow cable (green tie). Each time the pins are
shorted, the monitor should count a TOTAL LIQUID of 1
(3.78 for metric) therefore, shorting the pins 10 times would
be 1.0 Total Liquid. Hence the equation TOTAL LIQUID =
NUMBER OF PULSES/FLOW CALIBRATION. (Multiplied 3.78
for metric). Due to “switch bounce”, you may get more than
one count each time you short the wires.
DISTANCE
Temporarily enter a Speed Cal of 12.0 (1.00 for metric). Clear
DISTANCE to zero. Put master in MAN and Remote Run/Hold
in RUN (jumper cover installed). Temporarily disconnect
speed sensor cable. Use a clip lead or other jumper wire
and short together the two outside pins of the main harness
speed cable (yellow tie). Each time the pins are shorted, the
monitor should count one(1) foot (meter) therefore, shorting
the pins 10 times would be 10.0 feet (meters). Hence the
equation DISTANCE = NUMBER OF SPEED PULSES X SPEED
CAL. (For English ÷ by 12). Due to “switch bounce”, you may
get more than one count each time you short the wires.
AREA
Clear AREA and DISTANCE. Put master in MAN and Remote
Run/Hold in RUN. Turn boom switches on. Accumulate
some feet by driving or with a jumper as indicated above.
Using the equation AREA = DISTANCE X WIDTH OVER
CONSTANT, calculate area and compare to area reading on
the monitor. (A load may be required on solenoid wires to
validate the width of boom switches that are on).
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