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Efficient Irrigation via “Smart” Control
Rick Foster
Sr. Product Manager
The World’s Water Crisis
There is no new water.
Current Water Issues
• The cost of water & power is rising annually
• As the population grows, limited water sources strain to keep up with demand = DROUGHT
• In many cities, water delivery systems were designed to service a much smaller number of people than is required today = INFRASTRUCTURE IS STRAINED
• Irrigation is one the most visible forms of water use and is usually the first to be regulated in a drought or water shortage condition
Current Water Issues
• A recent report on the irrigation industry stated that automatic irrigation systems are one of the largest causes of over-watering:– The controller on the typical irrigation system is adjusted an
average of 1-1/2 times per year and many are never adjusted
– Controllers are typically set to apply the peak irrigation requirement of the year
– The average automatic irrigation system applies 2 to 3 times the amount of water required by the landscape
Current Water Issues
• Current politics of irrigation: – Water bans & restrictions– Tiered water rates– Lawn size and landscape restrictions– Mandatory irrigation audits– Mandatory “smart” controllers– Water-efficient product rebates
The need to deliver superior results with less water creates exciting new business opportunities.
As the industry leader in water-efficient irrigation, Rain Bird can help your business thrive.
Efficient Irrigation via “SMART” ControlKey Concepts
1. Evapotranspiration – Plant Water Need Based on Changing Weather Conditions
2. Management Allowed Depletion (MAD) – Proven Method of Irrigation Scheduling
Efficient Irrigation via “SMART” ControlKey Concepts
Evaporation
Efficient Irrigation via “SMART” ControlKey Concepts
Transpiration is the process by which plants return water to the atmosphere. After absorbing water from the ground, plants release water through their leaves. Transpiration helps plants stay cool, in the same way perspiration keeps humans and animals cool.
Plant Transpiration
Efficient Irrigation via “SMART” ControlKey Concepts
• Loss of water from vegetation though the combined processes of soil evaporation and plant transpiration
Evapotranspiration (ETo)
Efficient Irrigation via “SMART” ControlKey Concepts
• Temperature
• Wind
• Humidity
• Solar Radiation
Weather Factors That Influence The ETo Amount
Efficient Irrigation via “SMART” ControlKey Concepts
Historical ETo by Month
Efficient Irrigation via “SMART” ControlKey Concepts
Efficient Irrigation via “SMART” ControlKey Concepts
• Maximum % of Plant Available Water (PAW) taken out of soil before irrigating– % removed; NOT % remaining
• MAD provides a safety buffer– Broken mains– Controller downtime– Weather variations
• Varies by soil type – MAD Ranges from 35% to 50%
Management Allowed Depletion (MAD%)
Efficient Irrigation via “SMART” ControlKey Concepts
Saturation
Field Capacity
Management Allowed Depletion (~50% of PAW)
Permanent Wilt Point
Gravitational Water•Water Run-off•Heavy Nutrient Loss•Root Rot
Plant Available Water (PAW)
Wasted Water
Plant Stress
Plant Death
Parched
Control RangeSoil
Reservoir
Anatomy of Soil Water Content
“Smart” irrigation controllers work by monitoring and using information about site conditions (such as soil moisture, rain, wind, slope, soil, plant type, and more), and applying the right amount of water to the landscape based on those factors.
IA Association SWAT website: http://irrigation.org/SWAT/Industry/landscape-contractors/
Efficient Irrigation via “SMART” Control
Efficient Irrigation via “SMART” Control
• Climate - Based Systems–Central Control
–ET Controllers
• Site Data – Based Systems–Soil Moisture Sensors
–Rain/Freeze Sensors
ET ManagerCommercial grade
retro-fit product
ESP-LXM Controller with ET CartridgeCommercial grade,
modular, ET controller
ESP-SMTResidential or Light Commercial Smart
Controller
Climate-Based SystemsET Control
NEW
IQ/Site Control/MaxicomResidential or Light Commercial Smart
Controller
ET ManagerCommercial grade
retro-fit product
ESP-LXM Controller with ET CartridgeCommercial grade,
modular, ET controller
ESP-SMTResidential or Light Commercial Smart
Controller
NEW
IQ/Site Control/MaxicomResidential or Light Commercial Smart
Controller
Climate-Based SystemsET Control
Climate-Based SolutionsCentral Control
Multi-Site
Maxicom2
IQ
Single-Site
SiteControl
MDC
Larger Sites,Fully-AutomaticOperation
Smaller Sites,Semi-AutomaticOperation
Climate-Based SolutionsCentral Control
• Maxicom2 Weather Station WS-PRO– Collects and stores weather
data– Data communicated to central
control – Runtimes adjusted according
to daily ET and rainfall
ET ManagerCommercial grade
retro-fit product
ESP-LXM Controller with ET CartridgeCommercial grade,
modular, ET controller
ESP-SMTResidential or Light Commercial Smart
Controller
NEW
IQ/Site Control/MaxicomResidential or Light Commercial Smart
Controller
Climate-Based SystemsET Control
ET Manager: Where to Use it
• ET Manager Indoor (ETMi): Any non-battery operated controller in light commercial and commercial applications
• ET Manager Cartridge: Any Rain Bird LX Controllers
24
How ET Manager Works
25
ET ManagerCommercial grade
retro-fit product
ESP-LXM Controller with ET CartridgeCommercial grade,
modular, ET controller
ESP-SMTResidential or Light Commercial Smart
Controller
NEW
IQ/Site Control/MaxicomResidential or Light Commercial Smart
Controller
Climate-Based SystemsET Control
Rain Bird ESP-SMTSmart Modular Control System
“ESP” – Extra Simple Programming Continues the legacy of the Rain Bird ESP family that customers have embraced due to its “ease of use” and high quality
combined with
“SMT” – Smart Modular Technology
Uses proven scientific principles to automatically optimize the irrigation schedule in order to maintain healthy plant material
Rain Bird ESP-SMTSmart Modular Control System
ESP-SMT Smart Control SystemComprised of:
1. On-Site ESP-SMT Weather Sensor
2. ESP-SMT Smart Modular Controller
Rain Bird ESP-SMTSmart Modular Control System
• On-site weather sensor
• Rain Measurement Capabilities
• Automatic "Cycle and Soak"
• Irrigation Schedule optimizing using "MAD" Approach
• Separate Grow-In and Established Modes
• Default or Custom/Advanced Mode
Key “Smart” Features
Rain Bird ESP-SMTSmart Modular Control System
Site Specific•Temperature• Rainfall Shut-off• Rainfall Measurement
Zip Code Specific• Humidity Avg. by Month• Wind Speed Avg, by Month• Solar Radiation Calculation
Zone Specific Parameters• Soil Type / Slope• Sprinkler Type – Applic. Rate • Plant Type
•Species Factor•Root Depth
• Plant Density• Shade factor
+ +
How the System Works…
Site Data - Based SystemsRainfall and Freeze Sensors
RSD Wired Rain Sensor
WR2 Wireless Rain/Freeze
Sensor
Rain Check Rain Sensor
NEW
Rain Bird’s WR2 Wireless Rain Sensor Features and Benefits
Available as: Rain Sensor
Rain Freeze Sensor
Benefits of the WR2:Installs FasterEasier to UseSuperior Reliability
Rain Bird’s WR2 Wireless Rain Sensor Installs Faster
LCD screen displays all your settings at a glance
Battery Life
Signal Strength Rainfall Levels and Set PointsTemperature Levels and Set Points
Programmable irrigation modes
Rain Bird’s WR2 Wireless Rain Sensor Installs Faster
Shows signal strength on the controller interface AND the sensor
Rain Bird’s WR2 Wireless Rain Sensor Installs Faster
• WR2’s mounting bracket easily mounts on walls or gutters
Rain Bird’s WR2 Wireless Rain Sensor Easier to Use and Superior Control
Six rainfall set points between 1/8”and 1/2” inch
Rainfall adjustment is important depending on your soil type
“Quick Shut Off” feature
Three adjustable temperature set points
Why is adjustability important?
Rain Bird’s WR2 Wireless Rain Sensor Easier to Use and Superior Control
Rain Bird’s WR2 Wireless Rain Sensor Easier to Use
Antennas are contained within the sensor and controller interface
Homeowners will prefer this neat look compared with external wire antennas
Rain Bird’s WR2
Signals are updated every 45 seconds
Overcomes most line of sight restrictions for freedom in sensor placement
Communication distance of up to 700 feet line-of-sight
Rain Bird’s WR2 Wireless Rain SensorSuperior Reliability
Site Data - Based SystemsSoil Moisture Sensor
SMRT-Y Soil Moisture Sensor
Add-on device that makes any
controller “smart”
NEW
SMRT-Y Soil Moisture Sensor Overview
• Add-on device that turns any standard controller into a “smart” controller
• Typical water savings of 40% or more
• Advanced sensor technology provides accurate soil moisture readings even as soil conditions change
SMRT-Y Primary Function
ControllerSMRT-Y Controller
Interface Unit
Valves
SMRT-YMoisture Sensor
….
Single Sensor Feedback SystemsSensor Location
• Choose a full-sun location
• Avoid low spots where water typically collects
• Avoid high spots where drainage may not be representative of the site
• Avoid locations exposed to heavy foot traffic
• Avoid location near hard-scapes
• Avoid locations which are irrigated by more than one zone
Simplified Sensor Installation
1) Select a location forthe sensor
2) Install the sensor 3 to 5 in. below the surface
3) Connect the sensor to the nearest valve
Setting the Moisture Threshold
• Set Manually– Use average value of the site’s Management Allowable Depletion
(MAD)
– Calculate 80% of the known or estimated field capacity
• Use the SMRT-Y Auto-set feature
Watering History
• Displays the last seven watering cycles
• A drop appears if watering was allowed
• “Today” indicates the most recent cycle
• Watering history updates 30 minutes after the last cycle
University of Florida Study:45%-73% Water Savings
• Controller scheduled to irrigate 2 days per week
• Less than normal rainfall during test period
• Expect even greater savings when….– Higher rain fall during test period– Irrigation > 2 days/week
ControlWR2SMS1SMS2 + WR2
Rainfall
Legend
Questions?