Definition Smart controllers are irrigation clocks that
automatically adjust irrigation run times in response to
environmental changes Southern Nevada Water Authority
Slide 3
Environmental Factors Affecting Irrigation Solar Radiation Wind
Temperature Humidity Rainfall
Slide 4
Traditional vs. Smart Controllers
http://www.srpnet.com/water/smartirrigation.aspx
Slide 5
Methods Used By Smart Controllers Historical Data Historical
Data + Sensor Off-Site Data (Subscription) Weather Station Moisture
Sensor
Slide 6
Sensor Installation Considerations It is very important to
install on-site weather instruments in the right place. Rain gauges
and rain shut offs should be mounted in an open area away from
roofs, overhangs, buildings, and overhead vegetation. Likewise,
temperature sensors should be located away from buildings or other
structures that can heat up in the sun and affect the temperature
at the sensor.
Slide 7
How a Soil Moisture Sensor Works (moist soil)
Slide 8
How a Soil Moisture Sensor Works (dry soil)
Slide 9
Other Considerations Most traditional controllers can be
upgraded with rain sensors for minimal costs Smart controllers may
not save water if you are irrigating efficiently now Make sure the
smart controller you select allows for watering restriction
schedules
Slide 10
For More Information http://www.epa.gov/watersense/products/co
ntroltech.html http://www.epa.gov/watersense/products/co
ntroltech.html http://www.irrigation.org/swat/control_climat e/
http://www.irrigation.org/swat/control_climat e/
http://itc.tamu.edu/documents/Complete%20
2010%20Smart%20Controller%20Report%207 -15-11.pdf