ET Manager Series Installation and Operation Manual
Table of Contents 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 Principles of Weather Based Water Management . . . . . . . . . . . . . . . . .3 The Weather Reach Water Management System . . . . . . . . . . . . . . . . .4 Getting to Know your Rain Bird ET Manager . . . . . . . . . . . . . . . . . . . . .5 LCD Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Valve Group A & B Indicator Lights . . . . . . . . .
Table of Contents 1. Introduction Principle #3: Congratulations on purchasing the Rain Bird ET Manager! Your ET Manager (ETMi) works with almost all sprinkler controllers to automatically control watering based on current weather conditions bringing smart control to your sprinkler system. Weather conditions affect how much water your landscape needs. With your ET Manager landscape watering will be fully automatic and more accurate.
1. Introduction The Weather Reach Water Management System Your ET Manager receives a wireless weather signal from the Weather Reach Water Management System. The Weather Reach Water Management System (Figure 3) automates commercial and residential sprinkler schedules using real-time weather conditions. A Weather Reach Signal Provider (WRSP) retrieves information from local weather stations. The information is broadcast as a weather signal via a paging radio frequency to your ET Manager.
1. Introduction Getting to Know your Rain Bird ET Manager Your ET Manager automates control of the sprinkler system. It reacts to weather information it receives from the weather signal based on the settings programmed in the device. The following basic knowledge will identify elements of the ET Manager (see Figure 4), explain how to navigate through the ET Manager menus, and provides ET Manager Specifications.
1. Introduction LCD Contrast The image contrast on the LCD may be adjusted if needed. Temperature and surrounding light conditions can affect image visibility. To adjust the contrast, from the Home screen press à once. Once the contrast screen is displayed, press and hold Œ or Õ to adjust the image contrast. When the contrast is set to the desired setting, press À once to return to the Home screen.
1. Introduction Override Button If the A or B Indicator Light is red, your ET Manager is interrupting the output of the sprinkler controller. If you need to manually activate a valve from the sprinkler controller, press the Override button, and the Valve Group A and B Indicator Lights will turn green enabling sprinkler output. Your sprinkler controller can now be used to manually start a valve. Once the Override button is pressed, the LCD display will change from the current screen to the Override screen.
1. Introduction • ETM-OE: ET Manager outdoor enclosure option made with heavy-duty weather resistant plastic and 110-volt AC outlets. This case is lockable and the dimensions are 11 5⁄8" H x 9 1⁄2" W x 4 1⁄4" D • ETM-RG: Tipping Bucket Rain Gauge (1mm/ tip) w/ 30’ Cable. ET Formula Evapotranspiration (ETc) is calculated by the ET Manager using data from the weather signal via the paging system.
2. Installation 2. Installation To install your ET Manager, follow the installation check list and instructions given in this chapter. Your ET Manager is compatible with almost any type of sprinkler controller. This chapter focuses on installing your ET Manager with a standard sprinkler controller. Refer to chapter 8 for specific installation instructions on installing your ET Manager with advanced sprinkler controllers. Warnings • The ET Manager is intended for indoor use.
2. Installation Mounting Before mounting make sure the power is disconnected, and remove the terminal cover. Press gently on the terminal cover release while pulling out the bottom edge of the terminal cover. To completely remove the terminal cover, lift it off the tabs, exposing the wire terminals. The ET Manager has four mounting holes on the back of the cabinet; three keyhole slots and one round hole at the bottom.
2. Installation Figure 6. ET Manager Wire Terminal Connections Wire Connections Behind the terminal cover there are the following wiring terminals (see Figure 6): • 9-volt Battery: Connect 9-volt alkaline battery, to be replaced annually or as needed • Ground: Earth ground for surge protection • Power: 12 to 30-volt AC/60Hz or 12 to 35 VDC @ 0.22 (0.
2. Installation Wire Connection Guidelines 1 • Strip approximately ⁄4” insulation off the ends of wires connected to the ET Manager, and strip insulation off the ends of other wires as needed. • Use an appropriate screwdriver for all mounting. • Use a thin blade screwdriver for all ET Manager wire terminal connections. • Use appropriate screwdriver for all wire connections to sprinkler controller. • Use proper wire gauges, 14-26 AWG for terminal connections, and 10-18 AWG for grounding.
2. Installation Figure 7. ET Manager Terminal Connections - ET Enable Output Method Wiring Diagrams Optional Rain Gauge The most common Output Method for the ET Manager is to interrupt the valve common output of a sprinkler controller until watering is needed. This is referred to as the “Enable” Output Method. The ET Manager can support two Valve Groups, A and B.
2. Installation Figure 8. Tipping Bucket Rain Gauge Installation Note: Traditional “rain sensors” do not measure the amount of rain and must NOT be connected to the ET Manager. There is an optional rain gauge available from Rain Bird approved for use with the ET Manager. The rain gauge contacts can be either normally open or normally closed. • ETM-RG - Tipping Bucket Rain Gauge (1mm/ tip) w/ 30’ Cable Note: Power to the ET Manager MUST BE DISCONNECTED when connecting a rain gauge.
2. Installation Figure 9. External Antenna Installation Optional External Antenna Your ET Manager contains a paging radio receiver with a built-in antenna. In most cases this antenna will be sufficient. Conduct the Weather Signal Test from chapter 4, System Check. If the weather signal is regularly missed by the built-in antenna, an external antenna may be connected and mounted in a different location for better reception.
2. Installation 6. Attach the N style male connector to the bottom of the antenna. 7. Run the RG8X cable to the ET Manager, and connect the BNC male connector to the ET Manager BNC External Antenna Connection. 8. Seal each cable connection using the provided self-fusing silicone sealing tape. 9. Conduct the Weather Signal Test from chapter 4, System Check. If the weather signal continues to be regularly missed with proper installation of the remote antenna, contact Rain Bird for other options.
3. Programming 3. Programming Your ET Manager operation requires programming specific settings. Most of the programmable settings are site specific and are defined in chapter 6, Determining Programmable Settings. This chapter will allow you to program your ET Manager using general settings; refer to Appendix II for a table of general programmable settings.
3. Programming Weather Region Main Menu Settings System Data Source Weather Region The weather region number represents a weather station assigned by the WRSP. The weather region you set should correspond to a weather station that closely represents the location of the ET Manager. To obtain your weather region number, contact your WRSP, the Rain Bird Distributor, your installation contractor, or go to www.rainbird.com/etmanager.
3. Programming 2. Output Method 3. Site Specific Settings To accommodate almost any type of sprinkler controller, the ET Manager has four Output Methods: Site specific settings are programmed to meet the needs of your landscape and sprinkler system. From Settings in the Main Menu access: Standard • Enable: This is the most common setting. A sprinkler controller output is enabled to allow watering only when needed.
3. Programming Refer to Determining Programmable Settings, chapter 6, for more information on determining the values for the Irrigation Amounts and Landscape Adjustment Percentages. Navigate to Irrigation Amount & Adjust, and press À. The cursor will be pointing to Irrigation Amount. Now press À once to position the cursor to the “A.” Use Œ or Õ to choose between A and B. Press À when the cursor is in front of the valve group you would like to adjust. Use Œ or Õ to adjust the Irrigation Amount for A and B.
3. Programming from 10:00 pm to 8:00 am, once you press à your ET Manager will display 10:00 pm for 10 hours. Note: Use a separate sprinkler controller program for non-ET based watering schedules. Available Watering Days Main Menu Settings Irrigation Control Available Watering Days The days available for watering can be programmed in your ET Manager or your sprinkler controller. Typically Available Watering Days are set to “all” or everyday.
3. Programming Effective Rain Settings Main Menu Settings Irrigation Control Advanced Settings Effective Rain Settings Not all rainfall measured is considered effective rain. Rain that falls too quickly will run off before reaching the root zone, and rain that falls when the soil is completely saturated will run off as well. The Effective Rain settings include: • Max Hourly Rain: The Maximum Hourly Rain is the maximum amount of rain that will be accepted each hour in the soil moisture level.
3. Programming Low Air Temperature If the hourly weather signal contains air temperatures that reach the Temperature Interrupt setting, watering is interrupted. The Weather Interrupt is cancelled once the air temperature rises above the programmed interrupt setting received in the hourly weather signal. This interrupt will prevent watering during freezing conditions. High Wind If the hourly weather signal contains wind speeds that reach the Wind Interrupt setting, watering is interrupted.
3. Programming 4. Additional Settings and Options Clear Data Additional settings are programmed to facilitate general use of your ET Manager. From Settings in the Main Menu access: Clear Data • System Options • Date and Time System Options Main Menu Settings Systems Options There are four Options: • • • • Main Menu Settings Systems Options If it becomes necessary, you may clear all records stored in the ET Manager.
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3. Programming Cycle Start Times Non-ET Based Watering Schedules Your ET Manager does NOT start a watering cycle; it “enables” or allows the sprinkler controller to activate the valves when watering is needed. Cycle start times should be programmed into your sprinkler controller to meet the needs of the site. You may program multiple start times into your sprinkler controller. The ET Manager will allow all cycles to operate.
4. System Check 4. System Check Now that your ET Manager is installed and programmed, ensure successful operation by following the guidelines outlined in this chapter to verify that installation and programming is correct. To ensure the system check is completed properly, Refer to Appendix VIII: ET Manager Installation Checklist.
4. System Check mode after being in Disabled mode for an extended period of time, verify the current moisture level to determine when the first automatic watering cycle should occur. Override If you need to manually turn on valves and the ET Manager is interrupting the output of the sprinkler controller (Valve Group Indicator Light(s) are red), press the Override button to enable sprinkling for one hour. If more time is needed, press the Override button to increase override in one-hour increments.
4. System Check Valve Control Test When using Enable Output Method, your ET Manager controls the output of the sprinkler controller. Follow these steps to verify your ET Manager interrupts the stations on each Valve Group, A and B: Note: To complete the Valve Control Test, the Automatic Window or Daily Window must be closed.
5. Routine Operations 5. Routine Operation When installed and programmed properly, the ET Manager will automatically provide ET based management to your sprinkler system. In most cases, programmable settings should not need to be changed. Routine operation may include viewing and using: • Weather Information: Current weather information is displayed. A two-week log of conditions is displayed graphically. • Irrigation Status: Current moisture levels and irrigation settings are easily monitored.
5. Routine Operations • High Today: The day’s highest average wind speed recorded broadcast since midnight. • Low Today: The day’s lowest average wind speed recorded broadcast since midnight. • Graph: Press À to view the graph. The graph displays the recorded average wind speed over the last two weeks. Humidity Main Menu Weather Info Humidity Humidity values included in the weather signal are recorded hourly averages.
5. Routine Operations Table 2 represents an example of how the moisture level can change over time. Notice that on the day the Moisture Level reaches “0,” irrigation occurs to refill the soil. Once daily accumulation of ET causes the soil moisture balance to reach zero or a less than zero balance (negative balance), the ET Manager will allow sprinkling to occur. 6/11/2004 Soil Moisture Level = 0.16” 6/12/2004 - ET = 0.18” -0.02” + Irrigation = 0.50” 6/12/2004 Soil Moisture Level = 0.
5. Routine Operations Access Moisture Levels for A or B Evaporation (ET) Main Menu Irrigation Status A (or B) Moisture Level Main Menu Irrigation Status ET The following information is shown on this screen: • Irrigation Amount: The amount of water applied by the sprinkler system to refill the soil moisture reservoir. • Current Level: The current calculated moisture level for A (or B). • Moisture Level Graphic: On the right the graphic represents the current moisture level.
5. Routine Operations A or B Irrigation Log Main Menu Information Log A (or B) Irrigation Log • Last: Date and time of the last detected Automatic Window watering for Valve Group “A” or “B.” • Days Watered: Number of days the ET Manager has allowed watering for Valve Group “A” or “B.” This accumulates “since” the date indicated on this screen. • Total Water: The estimated total amount of watering for Valve Group “A” or “B.” This accumulates “since” the date indicated on this screen.
5. Routine Operations Automatic Window Open The Automatic Window is a period of time programmed in your ET Manager corresponding to the time period the sprinkler controller is programmed to water with ET-based control. When the Automatic Window “opens,” it looks at the current moisture balance and Irrigation Amounts and determines if watering is needed for Valve Groups A and/or B. Once the Automatic Window “opens,” it remains “open” for the entire period.
5. Routine Operations Temperature Interrupt the ET Manager will continue normal operation. You may want to manually water affected stations. If the last weather signal temperature record is at or below the Temperature Interrupt setting, a Weather Interrupt will occur. Provider Interrupt Action to take: The Weather Interrupt is cancelled once the air temperature rises above the programmed interrupt setting received in the hourly weather signal; your ET Manager will continue normal operation.
5. Routine Operations Actions to take: 1. Check when the last weather signal was received by your ET Manager. Main Menu Information Log Weather Signal 2. Check the Accuracy percentage of the weather signal. Main Menu Information Log Weather Signal 3. Verify the weather region in your ET Manager is programmed correctly. Navigate the menus to the Data Source screen to view the programmed weather region. Main Menu Settings System Data Source Weather Region 4.
5. Routine Operations 6. If the weather signal becomes “Detected,” the “No Paging Signal” message will discontinue. Monitor the signal Accuracy percentage for several days. 7. If the signal remains “Not Detected” after completing the steps above, try a different installation location or an optional external antenna. Note: Because of the nature of radio transmission, strength of the paging signal may vary depending upon your location.
5. Routine Operations No Historical ET Data Your ET Manager uses a historical ET database as a backup in the event weather signal service is not available. During programming, the Historical ET Database was set based on local conditions. If this was not programmed, a “No Historical ET” message is displayed. Action to take: Monthly historical ET values for your area are available from the Historical ET database included in the ET Manager Scheduler program on the Resource CD.
5. Routine Operations Set Signal Provider Code Window Overlaps Off Day If the attention message, “Set Signal Provider Code” appears on the Home screen, your ET Manager has been installed, but not programmed with the appropriate Signal Provider Code. If the attention message “Window overlaps off day” appears on the Home screen, the Water Window programmed in your ET Manager is overlapping a restricted watering day.
6. Determining Programmable Settings Site Assessment 6. Determining Programmable Settings By conducting a site assessment, you will determine: As a smart control system, your ET Manager and sprinkler system will work together to keep your landscape healthy. Programmable settings are site specific. Performing an accurate site assessment and using the information gathered to program your ET Manager ensures the efficiency of your smart control system.
6. Determining Programmable Settings Sprinkler Controller and Station Information The sprinkler system delivers water to the landscape refilling the soil reservoir. To use an ET Manager, the site must have an operating sprinkling system complete with automatic valves controlled by a sprinkler controller. The sprinkler system capabilities affect how to program your sprinkler controller and your ET Manager. Refer to chapter 4, Programming, for more detail on programming your sprinkler controller.
6. Determining Programmable Settings station run times, while exposure areas that would decrease the rate of evaporation may be fine with shorter station run times. Slope When sprinklers apply water faster than the soil can absorb, water can run-off. Sloping landscapes increases the chance of run-off occurring. Frequent watering cycles programmed in the sprinkler controller can minimize this problem. The ET Manager will allow the sprinkler controller to operate multiple watering cycles to prevent run-off.
6. Determining Programmable Settings ET Manager Settings Information gathered in your site assessment should be used to determine your programmable ET Manager settings. The ET Manager settings consist of: • Irrigation Control Settings • Advanced Settings • System Settings Use your ET Manager Site Assessment Worksheet, Appendix III, and the ET Manager Settings Worksheet, Appendix VI, to program your ET Manager.
6. Determining Programmable Settings • Plant Species • Planting Density • Microclimate As general rule the Landscape Adjustment Percentages should range between 70% to 100% for turf grass and 50% to 80% for shrubs. Note: Additional station-by-station adjustments can also be made in the sprinkler controller. Once your ET Manager is installed, the system should be monitored and these settings may need to be changed.
6. Determining Programmable Settings Available Days The days available for watering can be programmed in your ET Manager or in your sprinkler controller. Typically Available Watering Days are set to “all” or everyday. Examples of limiting available days include scheduled maintenance, facility use, or local watering restrictions.
6. Determining Programmable Settings Historical ET The ET Manager can be set to operate using historical ET data, instead of the weather signal data. If a problem occurs and the ET Manager is not receiving the weather signal, it will continue to operate using historical ET data as a default ET. This setting represents an average daily ET for each month. Note: A Historical ET database is available in your Rain Bird ET Manager Scheduler program found on the provided CD.
7. Troubleshooting 7. Troubleshooting ET Manager Troubleshooting If you have questions or problems with your ET Manager or sprinkler system, this chapter will guide you through possible scenarios that should be considered. The ET Manager Status Report Worksheet, Appendix IX, will help you identify possible errors in programming. The Display is blank. If you are unable to troubleshoot a situation, please contact your installer, Rain Bird Authorized Distributor or Rain Bird Customer Service at www.
7. Troubleshooting ride time has elapsed watering will be interrupted as before. Press Õ to 0 hours to end manual override in the ET Manager. The ET Manager is in Override, how do I stop it? Press Õ to 0 hours to end manual override in the ET Manager. Water Management Troubleshooting How often should my sprinklers come on? Your ET Manager uses real-time weather information to determine when watering is needed.
7. Troubleshooting Note: Adjust the run time using small intervals of time. This will help determine what run time is optimal to prevent dry or wet zones. Most stations within the entire Valve Group are too dry or too wet. There are two possible causes of all the stations within entire Valve Group being to dry or too wet: • The Irrigation Amounts for A or B were not correctly programmed. • A run time problem programmed in your sprinkler controller.
7. Troubleshooting You want your sprinkler system to water on the next cycle. Main Menu Settings System Data Source Rain Source There may be occasions when, in your judgment, the sprinklers should water tonight or the next watering cycle. When the Valve Group A or B Indicator Light is green, then watering will be allowed during the next scheduled cycle.
7. Troubleshooting 2. Lower the Max Hourly Rain setting for Valve Group A or B. The Maximum Hourly Rain setting may be limiting the amount of rainfall applied to the Moisture Levels. Change the Maximum Hourly Rain to a lower amount to allow the ET Manager to limit rainfall in the Moisture Levels for Valve Group A or B. Main Menu Settings Irrigation Control Advanced Settings Effective Rain Settings Max Hourly Rain 3. The Saturation Allowance for A or B may be too high.
8. Advanced Output Methods 8. Advanced Output Methods Enable A then B The ET Manager is an accessory to a sprinkler controller to provide real-time ET based water management for the sprinkler system. The interface between your sprinkler controller and the ET Manager utilizes one of four different Output Methods. The capabilities of the sprinkler controller and site-specific needs determine which Output Mode should be used.
8. Advanced Output Methods Wiring “A Then B” Figure 15. ET Manager Terminal Connections ET Enable A Then B Mounting and installation is the same as the Enable Output Method. The difference is the Valve Group wiring. Divide the valves into 2 valve common wire groups, one for Valve Group A and the other for Valve Group B.
8. Advanced Output Methods Valve Group A watered one night and the next night Valve Group B does not need to water but Valve Group A needs to be watered, then A would water again, hence changing the sequence. This is not a problem, but be aware that the sequence could change. 3. Automatic Window settings need to encompass the water window for both programs in the controller.
8. Advanced Output Methods Wiring ET and Rain Pulse Figure 16. ET Manager Terminal Connections ET and Rain Pulse The processes of mounting, grounding, and connecting the power source are the same as the Enable Output Method. Complete the following steps to install your ET Manager using the ET and Rain Pulse Output Method: 1. You MUST remove the jumper wire connecting the “Jumper” terminals. 2.
8. Advanced Output Methods 2. There are three settings in the Pulse menu: Main Menu Settings System Pulse a. Per Minute: There are two options either 1 or 10 pulses per minute. This setting controls the pulse rate so the host sprinkler controller can recognize each pulse. b. ET Duration: For each 0.01” of ET a dry contact switch closure is made. The number of seconds the switch remains closed for each pulse is programmed here. c. Rain Duration: For each 0.01” of rain a dry contact switch closure is made.
8. Advanced Output Methods Wiring ET Pulse with Weather Interrupt Figure 17. ET Manager Terminal Connections ET Pulse with Weather Interrupt The processes of mounting, grounding, and connecting the power source are the same as for the Enable Output Method. Complete the following steps to connect the ET and Weather Interrupt circuit: 1. You MUST remove the jumper wire connecting the “Jumper” terminals. 2.
8. Advanced Output Methods 2. There are two settings in the Pulse menu: Main Menu Settings System Pulse a. Per Minute: There are two options either 1 or 10 pulses per minute. This setting controls the pulse rate so the host sprinkler controller can recognize each pulse. b. ET Duration: For each 0.01” of ET a dry contact switch closure is made. The number of seconds the switch remains closed for each pulse is programmed here. 3. Standard Enable settings that are the same: a. Irrigation Control i.
9. Appendices 9. Appendices The following supplemental recourses are included: 1. Appendix I. ET Manager Menu Structure 2. Appendix II. General ET Manager Settings 3. Appendix III. ET Manager Site Assessment Worksheet 4. Appendix IV. Soil Texture by Feel Diagram 5. Appendix V. Calculating Precipitation Rates and Station Run Times 6. Appendix VI. ET Manager Settings Worksheet 7. Appendix VII. Sprinkler Controller Programming Worksheet 8. Appendix VIII. ET Manager System Checklist 9. Appendix IX.
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9. Appendices Appendix II: Default ET Manager Settings Irrigation Amount: Landscape Adjustment: 0.5" 0.75" 100% 75% Available Watering Days: All Max Hourly Rain: Saturation Allowance: 0.25" Output Method: Temperature Interrupt: Wind Interrupt: All 0.25" 0.35" Enable 30 ° F 1 20 mph Rain 24 Hour Interrupt: 0.30" Rain 1 Hour Interrupt: 0.
9. Appendices Appendix III.
9. Appendices Appendix IV. Soil Texture by Feel Diagram Source: “A Flow Diagram for Teaching Texture-by-Feel Analysis” published in the Journal of Agronomic Education by Steve J. Thien, Vol. 8, 1979. pp. 54-55.
9. Appendices Appendix V. Calculating Precipitation Rates and Station Run Times Precipitation Rate Each station in a sprinkler system applies water at a given rate, known as the precipitation rate, expressed in inches per hour. Precipitation rates vary based on the sprinkler type, spacing, nozzle, pressure, and sprinkler layout. There are three ways to determine the precipitation rate: Option 1: Refer to the manufacturer sprinkler performance charts.
9. Appendices Appendix VI.
9. Appendices Appendix VII.
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9. Appendices Appendix IX.
9. Appendices Appendix X. Master Valve and Pump Control Installation with ET Manager Master valve and pump control can be utilized with your ET Manager. Please carefully read the given methods below when using master valve and pump control with your ET Manager. Master Valve Control There are three options for using the sprinkler master valve: 1. Use two isolation relays and a separate common. This is the safest scheme to use the sprinkler master valve. 2. Use a separate common only.
9. Appendices Figure 19.
9. Appendices Figure 20. ET Manager Master Valve Wiring Diagram using Valve Group A Only Pump Control Pump control can be utilized, but it is limited to working with one Valve Group only. 72 Pump Control Warning: The ET Manager must NOT be used to control a pump when more than one valve group is used. The result will be that the pump turns on without a valve being on.
10. Glossary 10. Glossary Accuracy: The ET Manager looks at the last two weeks of weather signals and reports the accuracy of the weather signal. An accuracy level less than 65% will create an attention condition. Attention Indicator Light: A yellow light signals a condition that you should be aware of. An attention message is displayed on the Home screen. Automatic Mode: Automatic mode is the standard Control Mode setting.
10. Glossary Enable A then B: This Output Method operates the same as the Enable method with one significant difference, where watering is allowed on only one valve group per day. Watering on the other valve group will be delayed until the following day. ET: An abbreviation for evapotranspiration (see evapotranspiration). ET and Rain Pulse: An Output Method that delivers ET and rain data to a compatible sprinkler controller. A dry contact switch closure represents 0.01 inches of ET.
10. Glossary Historical ET Mode: Historical ET mode uses an average daily ET for each month programmed in the ET Manager instead of the weather signal data to operate. In the Historical ET Control Mode information from the weather signal is ignored. If there is an on-site rain gauge, the rain data collected will be used to adjust watering schedules. Hour Manual Override: Your ET Manager can be temporarily “Overridden” to allow manual watering.
10. Glossary Navigation Buttons: The Ã, Œ, Õ, or À navigation buttons are used to position the cursor at the desired location and navigate through the ET Manager menus. No Weather Data: If your ET Manager has not received a weather signal for more than 25 hours the Attention Indicator Light comes on and this message will be displayed on the Home screen. No Historical ET Data: The ET Manager uses a historical ET database as a backup in the event weather signal service is not available.
10. Glossary Rain Interrupt 24 Hours: Rainfall over the last 24 hours that is at or above the Rain Interrupt 24 Hour setting will cause a Weather Interrupt. The weather interrupt is cancelled once the total rainfall in the last 24 hours drops below the Rain 24 Hour setting. Rain Interrupt 1 Hour: Rainfall over the last hour that is at or above the Rain Interrupt 1 Hour setting will cause a rain interrupt.
10. Glossary Slope: When sprinklers apply water faster than the soil can absorb it, water can run-off. Sloping landscapes increase the chance of run-off occurring. Smart Control: The smart control term is used to designate water efficient systems which operate with your sprinkler system by calculating the evapotranspiration rate, or soil moisture. Soil: Soil is a habitat for soil organisms and plant roots. It functions as a storehouse for nutrients and a water reservoir.
10. Glossary Weather Region: The weather region number represents a weather station assigned by the Weather Reach Signal Provider (WRSP). The weather region you program in your ET Manager should correspond to a weather station that closely represents the location of the ET Manager. The WRSP assigns each weather station a weather region number. Weather Signal: A Weather Reach Signal Provider (WRSP) retrieves weather information from local weather stations.
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