Grand Junction
Pipe & Supply distributes Professional Rain Bird Central
Control Systems and parts. With over 50 years combined experience
our staff is dedicated to keeping on the leading edge of technology while
maintaining the knowledge necessary to sustain older systems.
About Central Control Systems
An
irrigation central
control system can be simply defined as a computer system which operates
multiple controllers,
sensors, and other irrigation devices from one central location.
Today's central control system can monitor
conditions in the system and surrounding areas, then control the equipment to
properly respond to the conditions. This "monitor and control
scenario" allows for complete system automation wherever parameters can be
defined for system operation. The system can operate without personal
intervention.
System Monitoring:
The monitor function of a central control system may consist of many
different sensors: wind sensors, weather
stations, and rain
sensors are just a few of the options available. These sensors monitor their
respective areas and report current conditions. The system can respond if any of
the conditions are outside pre-defined limits. An example of sensor operations
is the ability of the system to monitor rainfall. If rain occurs in a given
area, the system can automatically turn off the irrigation in that area and
report its actions to the central control system.
Controlling the System:
Controlling the system from the central location allows all system operations to
be programmed and monitored easily and efficiently. Control actions such as
adjusting watering times at all sites for seasonal fluctuations can be
accomplished easily by one person from each location.
Central Control Components:
Central control systems consist of a central computer, communications equipment,
field controllers, and sensors. The central computer is usually located in the
irrigation manager's office. The communications equipment is located both at the
computer and at the field devices. Communications equipment can consist of
telephone modems, radio modems, or fiber-optic modems. A middle manager device
called the cluster
control unit, which receives information from the central computer, is
located on-site to monitor and control the system equipment. These field devices
are connected to irrigation valves, sensors, and other field equipment.
Weather stations can be monitored by the central computer to gather weather
information and automatically calculate irrigation watering times. By gathering
weather data and automatically adjusting the system, large amounts of water and
money can be saved.
| Primary
Applications |
ESP+SITE/SAT |
SBM |
COM |
| Residential |
X |
|
|
| Light
Commercial |
X |
X |
X |
| Commercial/Industrial |
X |
X |
X |
| Type
of Controller |
| Electromechanical |
|
X |
|
| Hybrid |
X |
|
|
| Solid
State |
|
|
X |
| Indoor |
X |
X |
X |
| Outdoor |
X |
X |
X |
| Features |
| Stations
(up to) |
40 |
12 |
48 |
| Programs |
4 |
1 |
X*** |
| Station
Timing (up to) |
12
hr* |
30
min* |
X*** |
| #
Starts Per Program |
8 |
23 |
X*** |
| Lightning
Protection & Warranty |
X |
X |
X |
| 50
hz Option |
X |
X |
X |
| Master
Valve/Pump Start |
X** |
X |
X |
| Water
Budgeting |
X |
|
|
| Rain
Delay |
X |
|
|
| Battery
Programmable |
X |
|
|
| Sensor
Status Indicator & Override |
X |
|
|
| Delay
Between Stations |
X |
|
|
| Simultaneous
Multi-Station Operation |
X |
|
|
| Cycle+Soak |
X |
|
|
| Programmable
Overlap |
X |
|
|
| Programming
Schedule |
| 14
Day-of-Week |
|
X |
|
| 7
Day-of Week |
X |
|
|
| 1-99
Varable Cycle |
X |
|
|
| Odd/Even
Cycle |
X |
|
|
| 365-Day
Calendar |
X |
|
|
| Event
Day Off |
X |
|
|
| Central
Control Compatability |
| Maxicom
Ready |
X |
X |
X |
| Cabinet |
| Plastic
Outdoor |
X |
X |
X |
| Metal
Outdoor |
X |
X |
|
| Stainless
Steel Pedestal Option |
X |
X |
|
| Painted
Pedestal Option |
X |
X |
|
Rain Bird Golf Controller Line