In a recently completed project at Florida Tree Source, just east of Tampa, the farm manager is able to log into their computer via Internet and access the ESI irrigation controller remotely. The manager is able to make modifications to the irrigation schedule, observe the operation of the system, and download historical data. A typical display and status on desktop PC is shown below:

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There are 6 soil moisture sensors placed inside tree pots at Florida Tree Source. Presently, soil moisture data is logged into the computer. It is our goal to utilize the soil moisture data to activate the irrigation system in the near future.

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The system at Florida Tree Source, a closed loop sensing device is placed down stream of the injection system to detect the pH and EC levels and automatically adjust as per requirements. A 4-20 mA analog output from the injector system is forwarded to the ESI controller, allowing the manager to observe such levels. A sample pH reading data is presented below:

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Pressure transducers are used at the pumping stations to provide continuous pump and system pressures.

Pressure switch units are installed down stream of each valve. Their role is to provide a signal to the controller once the system in each zone is pressurized. This approach allows the manger to check and be assured that a zone was actually watered on any given cycle.

Level sensors are places inside acid, chlorine and fertilizer tanks to signal a low level condition and automatically send an e-mail to the supplier and inform the farm manager.