2
Gal Pro
Instruction 1.0
Principle of Irrigation Program Operation
The Irrigation Valve
The valve is a virtual element that has a physical counterpart that controls the actual valve in the
field. It also has a program that specifies the quantities of water and fertilizer. In each valve define
the water counter the valve uses and the condition input if necessary.
Sequences
The sequence is a group of valves that irrigate one after the other according to a predefined order. A
sequence can include one valve only and up to all of the valves of the controller (maximum 8). The
system has the timetable for the valves it contains.
Programming always includes:
a. Programming water and fertilizer quantities for the valves - Valves - Water & Fert.
b. Organizing the valves in the sequence in the Sequence Setup menu.
c. Making the timetable for each sequence in the Sequences Timing menu.
The Fertilization Process
Define the following parameters in the Valves - Water & Fert.: Water
Req., Fert Req., Water Before, Water After, Water Unit and Fert. Unit.
Please Note: The Water Unit and the Fert. Unit are defined before the first operation of the controller.
Water Req. - The amount of water that the valve irrigates during the course of one irrigation cycle. It is
measured in units of Liters or M3 according to the definition of the Water Unit.
Fert. Req. - The amount of fertilizer that is injected into the system.
Fert. Unit - There are 4 options:
1. Bulk fertilizing in liters - the controller fertilizes continuously until it finishes the amount of
fert. required.
2. Fertilizing by time in minutes - the controller operates the fertilizer pump continuously for
the required amount of time.
3. Proportional fertilization according to Liter/M3 - The controller injects the defined amount
into each M3 of water.
4. Calculated proportional fertilization - The controller divides the total amount of fertilization
for the irrigation (programmed) by the amount of water and applies the proportion Liter/M3,
resulting in continuous fertilization throughout the irrigation.
Water Before - The amount of water at the beginning of irrigation before fertilization starts.
Water After - The amount of water without fertilization at the end of irrigation. The controller stops
the fertilization when the Water Left reaches this value even if the fertilization process has not been
completed.
The fertilization process is always carried out in the "fertilization segment" which is between "water
before" and water after".
The following diagram describes the fertilization process during the irrigation.
6. Programming
Summary of Contents for Gal Pro DC
Page 1: ...GalPro AC DC Operating Manual...
Page 2: ......
