7. Rain Gauge
The Heron rain gauge allows irrigation programs to be reduced depending on the amount of rain that has
fallen over the last few days. Irrigation programs can be reduced by 25%, 50%, 75% or 100%.
If you have a Heron rain gauge, set this option to 001.
Setting this option to 000 or N will disable the rain gauge.
Connecting the Rain Gauge
Connect the two terminals inside the rain gauge to Input 2 (across "I2" and "C2”). The terminals in the rain
gauge are accessed by removing the bottom of the rain gauge.
Using the Rain Gauge
When this option is set “RAIN GAUGE” will appear in the Main Menu.
Select “RAIN GAUGE” from the Main Menu. The Rain Menu will be displayed.
Select “SETTING” from the Rain Menu.
The number of millimetres of rain to be recorded in order to trigger a percentage reduction in program run
times can be entered on this screen.
The current rainfall in millimetres and the current level of water reduction, are also displayed.
Testing the Rain Gauge
The rain gauge can be tested by pressing the spoon down inside the rain gauge.
Note: The rain gauge has no effect on a manual zone start.
To view the actual rainfall measured in the last 24 hour period, select “RAIN FALL 24HR” from the Rain Menu.
To clear the rainfall measurements at any time select “CLEAR RAIN FALL” from the Rain Menu.
Press the MENU key to return to the Rain Menu.
Press the MENU key to return to the Main Menu.
RAIN GAUGE
TODAY 00:0 MM LAST 24HR 00.0 MM
CURRENT PERCENTAGE IS 100 %
REDUCTION BY 25 00:0 MM
REDUCTION BY 50 00:0 MM
REDUCTION BY 75 00:0 MM
REDUCTION BY 100 00:0 MM
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