11. SETTING THE SIMPLESMART
™
OPTION (SET ET)
The LEIT1
™
smart controller’s main feature includes 20 preset programs for sprays and drip
irrigation based on three years of historical evapotranspiration (ET) from various climate
regions.
How DIG’s LEIT1
™
smart controller operates using Historical Evapotranspiration (ET):
After programming the watering schedule, watering start time and watering duration, the user can
select one of the preset SimpleSmart
™
evapotranspiration (ET) programs for spray or drip irrigation
systems. See the color map in the centerfold of this manual to select the appropriate preset for
your location and type of system, or reference CHART A on page 16 and choose from the region
description.
Selecting SP01 through SP20 sets the LEIT1
™
controller to water a predetermined number
of minutes per month. The amount to water is pre-programmed into the controller and is
determined by which program (SP) is selected and by the month.
If you have already set a SimpleSmart
™
ET preset (example: SP02) and then change the run
time, your SimpleSmart
™
program will be turned OFF. You must reactivate the SimpleSmart
™
programming each time you adjust your run time (see section 10).
NOTE:
If using one of the SimpleSmart
™
presets, we recommend evaluating the plants’
health for the first month and making adjustments to the system as needed. If an adjustment
or fine tuning of the SimpleSmart
™
programming is required, this adjustment can be made
for each month in the SEASONAL ADJUSTMENT (%) SETTING (see section 11).
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