Rain Master RME EAGLE EG Series, Руководство пользователя

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8.0 ET PROGRAMMING Rain Master Eagle User Manual
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8.4 ESTABLISH THE ET REFERENCE VALUE
The ET Reference value is utilized by the Rain Master Eagle in order to calculate the adjusted
station runtime each time a station is turned on. The calculation compares the ET Reference value
with the daily ET source (ie Historical, Internet, or Weather Station). When the source value is
less than the reference value, the Rain Master Eagle adjusts all station runtimes downward in order
to conserve water.
The ET reference value is directly tied to the ET reference program established in section 8.3
GENERATE THE REFERENCE PROGRAM. If the reference program that you entered into
the Rain Master Eagle was established for the month of August, then your reference month will be
August.
Using RMIS Part Number 500048, Historical ET Data Tables, obtain the ET value associated
with the month of August. Refer to section 7.3 ENTERING THE ET REFERENCE VALUE to
enter the reference value into the controller.
!
Once established, the reference value should not be changed arbitrarily, ie on a daily,
weekly, or monthly basis. The reference ET value works hand in hand with the reference
program. The Rain Master Eagle adjusts station runtimes by comparing the daily ET
versus the ET reference value.
!
If the reference program changes to establish a new program that is representative of an
irrigation schedule for a different time of the year, THEN the reference value MUST
also change.
As an example, assume that a set of programs were established for the month of August
and the reference value for this month had been previously entered. Also assume that it
is now the winter and you wish to establish a winter irrigation schedule based on the
month of October. A new representative schedule would be established for this month
AND the new reference value (that of October) would now be entered.
8.5 ENABLING PROGRAMS FOR ET OPERATION
The Rain Master Eagle provides the ability for irrigation programs 1 through 4 to be enabled
for ET operation or conventional programming. Each program can be setup for ET operation
independently. Once the program is setup for the ET mode of operation, station runtime
adjustments will be made based on daily weather conditions. Please refer to section 7.2 ET
MODE to enable ET operation mode on a per program basis.
!
The controller default is all programs to be in conventional mode. Make sure you enable
the appropriate programs if ET operation is desired.
Once a program is enabled for ET scheduling, you will no longer be able to utilize the
WATER % BUDGET adjustment feature for this program.
The Rain Master Eagle controller will budget irrigation runtimes based upon its internal ET
calculations.
2 et - 75
If you depress the WATER % BUDGET key for a program which has been ET enabled, the
display will indicate the program number followed by “ET” followed by a percent value.
This number is the percentage which each station will be adjusted from the reference program
station runtime, assuming that the station watering time was to occur at this time. A value of 75
indicates that each station runtime will be reduced by 25%.
EXAMPLE
: Assume program 2 was enabled for ET operations mode and that station 1 has
a programmed runtime of 10 minutes. Assume that when the WATER % BUDGET key is
depressed the value reads 75.
The Rain Master Eagle controller would calculate the runtime Station one (1) as follows: