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    WeatherTRAK Smart Controllers ET Pro3 Programming

    Programming in User with ET Mode

    Smart Controllers: ET Pro3

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    Programming a station in User with ET mode allows you to program in the number of minutes per cycle and number of cycles per day while using ET weather data to adjust irrigation amounts to meet plant needs.

    Reference ET and weekly ET numbers are used to adjust watering. The reference ET is a historical number based on location and time of year. The weekly ET is an average number based on current weather.

    Irrigation will still occur at the times you programmed in; however, runtimes will vary if the reference ET and Weekly ET numbers do not match. The bullet points below explain what will happen if the ET numbers do not match. 

    • Equal ET: If the current weekly ET matches the station reference ET (normal weather) then the station will deliver exactly the runtime that is programmed.

    • High ET: If the current weekly ET is higher than the station reference ET (hotter weather) then the station runtime will be turned up in response.

    • Low ET: If the current weekly ET is lower than the station reference ET (cooler weather) then the station runtime will be turned down in response.


    Steps for Programming a Station in User with ET

    1.  Press STATIONS. The SELECT STATION screen displays.

    2.  Press + or – to select the desired station.

    3.  Press à to assign the selected station to a mode.

    4.  Press + or –  to select User with ET.

    5.  Press à. The SELECT PROGRAM screen displays.

    6.  Press + or – to assign the station to a program.

    7.  Press à until the USE WATER WINDOW screen displays.

    8.  Press + or – button to perform one of the following options:

    • To set the controller to not use the water window, select no (irrigation can occur outside the water window).
    • To set the controller to use the water window, select yes (irrigation will only occur within the water window).

    9.  Press the à button until the USABLE RAINFALL screen displays.

    10.  Press + or –  to perform one of the following options:

    • To set the controller to use 100% of the usable rainfall select 100%
    • To set the controller to NOT use the rainfall, select None

    11.  Press à until the RUNTIME PART 1 screen displays.

    12.  Press + or –  to select the number of whole minutes you want this station to irrigate for.

    13.  Press à. Press + or – to select the number of fractions of a minute you want to irrigate for.

    14.  Press à. The NUMBER OF CYCLES screen displays.

    15.  Press  +  or - to select the number of cycles for the desired station.

    16.  Press the à. The SET SOAK TIME screen displays.

    17.  Press  + or -   to select the number of minutes in between each cycle.

    18.  Press à to set the reference ET part 1.

    19.  Press + or –  to select the whole reference number.

    20.  Press à to set the reference ET part 2.

    21.  Press  + or –  to select the part reference number.

    22.  Your station has now been set to operate in User with ET. Repeat the above procedure for additional stations that you want to operate in User with ET.


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