CHAPTER 1
vi ISO Product Controller II and Hawkeye Operation Manual
PRESSURE SETTINGS
UNIT DEFINITIONS AND CONVERSIONS
UNIT OF MEASURE DEFINITIONS
UNIT OF MEASURE CONVERSIONS
To convert the meter cal value into the selected unit of measure, divide the original number printed on the flow
meter label by the desired conversion value.
Response
Rate
Min.
Pressure
Max.
Pressure
0-250 psi or
0-150 psi
Abbreviation Definition Abbreviation Definition
GPM Gallons per Minute dm Decimeters
lit/min Liters per Minute m Meter
dl/min Deciliters per Minute MPH Miles per Hour
PSI Pounds per Square Inch km Kilometers
kPa Kilopascal km/h Kilometers per Hour
GPA Gallons per Acre US Volume per Acre
lit/ha Liters per Hectare SI Volume per Hectare
ml/ha Milliliters per Hectare TU Volume per 1,000 Square Feet
GPK Gallons per 1,000 Square Feet [ ] Metric Numbers
mm Millimeters lb/acre Pounds per Acre
cm Centimeters kg/ha Kilograms per Hectare
Fluid Ounces Conversion
Formula
Liters Conversion Formula Pounds Conversion Formula
Liquid Area
• 1 U.S gallon = 128 fluid ounces • 1 square meter = 10.764 square feet
• 1 U.S. gallon = 3.785 liters • 1 hectare = 2.471 acres or 10,000 square meters
• 1 U.S. gallon = 0.83267 imperial gallons • 1 acre = 0.405 hectares or 43,560 square feet
• 1 U.S. gallon = 8.34 pounds (water) • 1 square mile = 640 acres or 258.9 hectares
• 1 U.S. gallon = 10.67 pounds (28% N)
Original Meter Cal
Weight of One Gallon of