RME EAGLE User Manual
Rain Master Irrigation Systems
Page 102
Chapter 8 ET Programming
NOTE:
Historical information must always be entered by the user into the RME
EAGLE regardless of which source data is selected. Whether you are using
manually entered ET, weather station ET, or Internet provided ET, the
historical ET information is used as a backup.
EXAMPLE:
You have setup the RME EAGLE to use the Weather Station data and the Weather
Station malfunctions. The historical data will automatically be used by the RME EAGLE during
the outage period of the Weather Station. A similar situation would exist when using the Internet
interface.
8.6.2 Manually Entered ET
The user has the ability to manually enter daily ET information at any time. When used in
conjunction with Historical ET, the user can manually input an ET value to account for extreme
conditions such as unusual hot or cold spells, etc. In some communities (especially Agricultural)
this data may be available in local newspapers, via the radio, or even reported as part of the local
weather report. By utilizing manually entered ET data in conjunction with historical ET data a
more exact picture of the irrigation needs can be defined.
The controller is designed to utilize the manually entered ET value for a period of one week. The
controller will automatically revert back to the use of Historical data, or any other selected ET data
source, after this time period.
Manual ET data can be entered at any time; each time it is entered it will over-write the last data
value that was stored and supercede all other ET data sources.
Please refer to section 7.6 MANUAL ET DATA for detailed specifics on entering manual ET data.
WARNING: Historical ET data should always be entered into the controller when using
the controller in the ET mode. In order to ensure that the controller
intelligently irrigates in the event that the user is unable to enter a manual
value, it is important that the historical ET be entered as a fallback.
8.6.3 Weather Station generated ET
The most accurate mechanism for supplying ET data to your RME EAGLE controller is with a Rain
Master Weather Station properly installed within the irrigated area. A local weather station is
capable of measuring ET data based upon your specific microclimate. Because the weather station
is capable of measuring ET in the nearest one hundredth of an inch and the data is measured in real
time, on a continuous basis, your RME EAGLE can respond to changes in weather conditions
immediately.
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