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Turn the dial back to the Automatic position to save the station
setting.
Hold down both the + and – buttons, and turn the dial back to the
Plant Type position. Release the + and – buttons.
The Station number will be highlighted, and the display will now also
show the Kc (crop coefficient) associated with the current selections.
Use the right arrow key to move to the Kc= position. The Kc value can
then be changed up or down, with the + or – button. Use them to set a
custom Kc for that zone.
Move the dial to another position to save the custom crop coefficient
for that zone. The change only applies to the customized station, and
must be repeated for any similar custom plant types.
When all stations have Plant Type data entered, turn the dial to save
the information. For initial setup, proceed to the Site Info dial position.
Site Info
At the Site Info dial position, select and customize the slope, soil, and
sun exposure for each zone of irrigation. There is one screen for each
zone (if there is more than condition within a zone, select the type
which predominates).
Use the arrow keys to advance to each value, and the +/- keys to cycle
through the choices.
STATION 01
SLOPE: 00%
SOIL: LOAM
SUN: PART SUN
Slope
This value (along with SOIL) is used to determine automatic cycles
and soaks for each station, based on the probable run-off of irrigation.
Use the +/- keys to set the percentage of slope, from 0 to 50% in 1%
increments. If the ground is flat, leave this setting at 0%.
Determining the slope percentage:
The slope is defined as the
amount of elevation change, or Rise, divided by Run (the measured
distance), multiplied by 100. If an irrigated area rises 2 (feet or
meters) over 15 (feet or meters), the slope is approximately 13%:
(2/15)x100=13.333.
Soil
Soil type (or texture) is used together with the SLOPE information
to determine the Intake Rate of the soil, resulting in cycle and soak
scheduling.
Use the +/- key to select from the following soil types:
• Sand: Predominantly Sandy soil
• Loamy Sand
• Sandy Loam
• Loam: Predominantly loamy soil
• Clay Loam
• Silt: Predominantly silt soil
• Silty Clay
• Clay: Predominantly clay soil
Automatic Cycle and Soak:
A maximum run time before runoff irriga-
tion from the sprinklers occurs will be calculated, based on the slope
and soil settings. A station is only allowed to run continuously up to
that time limit.
If the zone needs more water, ET System will shutoff for a soak period,
determined by the Slope and Soil settings, to allow the water to soak
into the earth. Other stations can run during the station’s soak time, if
they are able. When the soak period has elapsed, the ET System will
re-activate the station at the next opportunity to continue irrigating.
This process will repeat until the full application amount is complete.
Advance to the next station with the station button, or turn the dial to
continue to Sprinkler Type setup of the selected station.
Содержание ET System
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